======================================
| xx__-> [   10.192367][  T133] (udev-worker) (133) used greatest stack depth: 24264 bytes left
| [   10.461693][  T244] ------------[ cut here ]------------
| [ 10.462086][ T244] WARNING: CPU: 1 PID: 244 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) 
| [   10.462610][  T244] Modules linked in: netdevsim
[   10.463183][  T244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.463468][ T244] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.463750][ T244] 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
[   10.464536][  T244] RSP: 0018:ffffc90000bb7520 EFLAGS: 00010246
[   10.464812][  T244] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.465144][  T244] RDX: 0000000000000000 RSI: ffff88800b23ac98 RDI: ffff888009198b78
[   10.465470][  T244] RBP: ffff888005700040 R08: 0000000000000000 R09: fffffbfff2bbd83c
[   10.465793][  T244] R10: ffffffff95dec1e7 R11: ffff888009198040 R12: 0000000000000000
[   10.466128][  T244] R13: ffff88800b23a128 R14: ffff88800b23a008 R15: ffff88800b23a000
[   10.466462][  T244] FS:  00007f50c42ad740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   10.466870][  T244] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.467156][  T244] CR2: 0000565305ea62f8 CR3: 000000000d0aa001 CR4: 0000000000772ef0
[   10.467491][  T244] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.467817][  T244] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.468150][  T244] PKRU: 55555554
[   10.468324][  T244] Call Trace:
[   10.468493][  T244]  <TASK>
[ 10.468613][ T244] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.468839][ T244] ? __warn (kernel/panic.c:748) 
[ 10.469010][ T244] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.469314][ T244] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.469548][ T244] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.469717][ T244] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.469935][ T244] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.470182][ T244] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.470412][ T244] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.470686][ T244] ? _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) 
[ 10.470915][ T244] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.471150][ T244] register_netdevice (net/core/dev.c:11003) 
[ 10.471391][ T244] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.471619][ T244] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.471855][ T244] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.472163][ T244] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.472342][ T244] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.472630][ T244] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.472911][ T244] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.473202][ T244] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.473442][ T244] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.473724][ T244] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.473951][ T244] ? 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)) 
[ 10.474128][ T244] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.474357][ T244] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.474583][ T244] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.474806][ T244] driver_probe_device (drivers/base/dd.c:830) 
[ 10.475031][ T244] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.475265][ T244] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.475536][ T244] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.475754][ T244] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.475974][ T244] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.476217][ T244] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.476439][ T244] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.476671][ T244] __device_attach (drivers/base/dd.c:1030) 
[ 10.476893][ T244] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.477127][ T244] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.477345][ T244] ? 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) 
[ 10.477573][ T244] bus_probe_device (drivers/base/bus.c:537) 
[ 10.477793][ T244] device_add (drivers/base/core.c:3672) 
[ 10.478015][ T244] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.478239][ T244] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.478471][ T244] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.478755][ T244] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.479036][ T244] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.479265][ T244] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.479494][ T244] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.479708][ T244] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.479931][ T244] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.480129][ T244] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.480359][ T244] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.480572][ T244] ? 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) 
[ 10.480799][ T244] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.481024][ T244] ksys_write (fs/read_write.c:731) 
[ 10.481200][ T244] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.481416][ T244] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.481646][ T244] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.481866][ T244] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.482149][  T244] RIP: 0033:0x7f50c43eeb77
[ 10.482380][ T244] 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
[   10.483142][  T244] RSP: 002b:00007ffd9c1c0fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.483486][  T244] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f50c43eeb77
[   10.483808][  T244] RDX: 0000000000000005 RSI: 0000565305ea52f0 RDI: 0000000000000001
[   10.484153][  T244] RBP: 0000565305ea52f0 R08: 0000000000000004 R09: 0000000000000077
[   10.484484][  T244] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000005
[   10.484812][  T244] R13: 00007f50c44aa760 R14: 0000000000000005 R15: 00007f50c44a59c0
| [   10.499207][  T244] ------------[ cut here ]------------
| [ 10.499458][ T244] WARNING: CPU: 1 PID: 244 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) 
| [   10.499894][  T244] Modules linked in: netdevsim
| [   10.500560][  T244] Tainted: [W]=WARN
[   10.500729][  T244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.500998][ T244] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.501290][ T244] 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
[   10.502039][  T244] RSP: 0018:ffffc90000bb7520 EFLAGS: 00010246
[   10.502323][  T244] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.502643][  T244] RDX: 0000000000000000 RSI: ffff888009352c98 RDI: ffff888009198b78
[   10.502968][  T244] RBP: ffff888005700040 R08: 0000000000000000 R09: fffffbfff2bbd83c
[   10.503313][  T244] R10: ffffffff95dec1e7 R11: ffff888009198040 R12: 0000000000000000
[   10.503641][  T244] R13: ffff888009352128 R14: ffff888009352008 R15: ffff888009352000
[   10.503960][  T244] FS:  00007f50c42ad740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   10.504350][  T244] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.504622][  T244] CR2: 0000565305ea62f8 CR3: 000000000d0aa001 CR4: 0000000000772ef0
[   10.504947][  T244] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.505279][  T244] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.505607][  T244] PKRU: 55555554
[   10.505770][  T244] Call Trace:
[   10.505935][  T244]  <TASK>
[ 10.506047][ T244] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.506274][ T244] ? __warn (kernel/panic.c:748) 
[ 10.506442][ T244] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.506672][ T244] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.506895][ T244] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.507089][ T244] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.507313][ T244] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.507546][ T244] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.507774][ T244] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.508050][ T244] ? _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) 
[ 10.508285][ T244] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.508507][ T244] register_netdevice (net/core/dev.c:11003) 
[ 10.508735][ T244] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.508965][ T244] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.509213][ T244] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.509492][ T244] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.509661][ T244] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.509947][ T244] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.510242][ T244] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.510523][ T244] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.510751][ T244] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.511021][ T244] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.511259][ T244] ? 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)) 
[ 10.511431][ T244] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.511655][ T244] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.511881][ T244] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.512112][ T244] driver_probe_device (drivers/base/dd.c:830) 
[ 10.512330][ T244] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.512550][ T244] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.512814][ T244] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.513032][ T244] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.513257][ T244] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.513479][ T244] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.513694][ T244] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.513918][ T244] __device_attach (drivers/base/dd.c:1030) 
[ 10.514143][ T244] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.514359][ T244] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.514577][ T244] ? 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) 
[ 10.514801][ T244] bus_probe_device (drivers/base/bus.c:537) 
[ 10.515025][ T244] device_add (drivers/base/core.c:3672) 
[ 10.515264][ T244] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.515488][ T244] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.515718][ T244] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.515998][ T244] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.516288][ T244] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.516512][ T244] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.516745][ T244] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.516960][ T244] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.517193][ T244] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.517365][ T244] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.517588][ T244] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.517802][ T244] ? 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) 
[ 10.518026][ T244] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.518275][ T244] ksys_write (fs/read_write.c:731) 
[ 10.518443][ T244] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.518657][ T244] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.518886][ T244] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.519127][ T244] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.519400][  T244] RIP: 0033:0x7f50c43eeb77
[ 10.519621][ T244] 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
[   10.520379][  T244] RSP: 002b:00007ffd9c1c0fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.520701][  T244] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f50c43eeb77
[   10.521020][  T244] RDX: 0000000000000005 RSI: 0000565305ea52f0 RDI: 0000000000000001
[   10.521354][  T244] RBP: 0000565305ea52f0 R08: 0000000000000004 R09: 0000000000000077
[   10.521676][  T244] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000005
[   10.521996][  T244] R13: 00007f50c44aa760 R14: 0000000000000005 R15: 00007f50c44a59c0
| [   10.542423][  T244] ------------[ cut here ]------------
| [ 10.542700][ T244] WARNING: CPU: 1 PID: 244 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) 
| [   10.543142][  T244] Modules linked in: netdevsim
| [   10.543751][  T244] Tainted: [W]=WARN
[   10.543920][  T244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.544211][ T244] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.544499][ T244] 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
[   10.545253][  T244] RSP: 0018:ffffc90000bb7520 EFLAGS: 00010246
[   10.545528][  T244] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.545857][  T244] RDX: 0000000000000000 RSI: ffff888004f22c98 RDI: ffff888009198b78
[   10.546189][  T244] RBP: ffff888005700040 R08: 0000000000000000 R09: fffffbfff2bbd83c
[   10.546520][  T244] R10: ffffffff95dec1e7 R11: ffff888009198040 R12: 0000000000000000
[   10.546839][  T244] R13: ffff888004f22128 R14: ffff888004f22008 R15: ffff888004f22000
[   10.547167][  T244] FS:  00007f50c42ad740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   10.547545][  T244] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.547812][  T244] CR2: 0000565305ea62f8 CR3: 000000000d0aa001 CR4: 0000000000772ef0
[   10.548165][  T244] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.548492][  T244] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.548813][  T244] PKRU: 55555554
[   10.548976][  T244] Call Trace:
[   10.549147][  T244]  <TASK>
[ 10.549259][ T244] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.549476][ T244] ? __warn (kernel/panic.c:748) 
[ 10.549645][ T244] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.549862][ T244] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.550350][ T244] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.550530][ T244] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.550747][ T244] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.550975][ T244] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.551216][ T244] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.551503][ T244] ? _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) 
[ 10.551724][ T244] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.551943][ T244] register_netdevice (net/core/dev.c:11003) 
[ 10.552216][ T244] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.552450][ T244] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.552685][ T244] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.552959][ T244] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.553140][ T244] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.553425][ T244] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.553706][ T244] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.553983][ T244] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.554224][ T244] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.554513][ T244] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.554734][ T244] ? 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)) 
[ 10.554899][ T244] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.555135][ T244] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.555365][ T244] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.555587][ T244] driver_probe_device (drivers/base/dd.c:830) 
[ 10.555804][ T244] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.556023][ T244] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.556393][ T244] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.556626][ T244] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.556841][ T244] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.557080][ T244] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.557297][ T244] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.557518][ T244] __device_attach (drivers/base/dd.c:1030) 
[ 10.557733][ T244] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.557948][ T244] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.558325][ T244] ? 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) 
[ 10.558560][ T244] bus_probe_device (drivers/base/bus.c:537) 
[ 10.558786][ T244] device_add (drivers/base/core.c:3672) 
[ 10.559004][ T244] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.559234][ T244] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.559464][ T244] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.559748][ T244] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.560028][ T244] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.560268][ T244] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.560502][ T244] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.560717][ T244] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.560939][ T244] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.561127][ T244] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.561353][ T244] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.561565][ T244] ? 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) 
[ 10.561791][ T244] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.562020][ T244] ksys_write (fs/read_write.c:731) 
[ 10.562197][ T244] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.562415][ T244] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.562644][ T244] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.562865][ T244] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.563149][  T244] RIP: 0033:0x7f50c43eeb77
[ 10.563375][ T244] 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
[   10.564150][  T244] RSP: 002b:00007ffd9c1c0fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.564495][  T244] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f50c43eeb77
[   10.564814][  T244] RDX: 0000000000000005 RSI: 0000565305ea52f0 RDI: 0000000000000001
[   10.565150][  T244] RBP: 0000565305ea52f0 R08: 0000000000000004 R09: 0000000000000077
[   10.565475][  T244] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000005
[   10.565793][  T244] R13: 00007f50c44aa760 R14: 0000000000000005 R15: 00007f50c44a59c0
| [   10.577631][  T244] ------------[ cut here ]------------
| [ 10.577868][ T244] WARNING: CPU: 3 PID: 244 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) 
| [   10.578417][  T244] Modules linked in: netdevsim
| [   10.579028][  T244] Tainted: [W]=WARN
[   10.579229][  T244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.579500][ T244] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.579778][ T244] 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
[   10.580549][  T244] RSP: 0018:ffffc90000bb7520 EFLAGS: 00010246
[   10.580827][  T244] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.581161][  T244] RDX: 0000000000000000 RSI: ffff888004ea2c98 RDI: ffff888009198b78
[   10.581488][  T244] RBP: ffff888005700040 R08: 0000000000000000 R09: fffffbfff2bbd83c
[   10.581814][  T244] R10: ffffffff95dec1e7 R11: ffff888009198040 R12: 0000000000000000
[   10.582148][  T244] R13: ffff888004ea2128 R14: ffff888004ea2008 R15: ffff888004ea2000
[   10.582471][  T244] FS:  00007f50c42ad740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   10.582847][  T244] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.583136][  T244] CR2: 000055864d406230 CR3: 000000000d0aa001 CR4: 0000000000772ef0
[   10.583462][  T244] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.583787][  T244] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.584143][  T244] PKRU: 55555554
[   10.584310][  T244] Call Trace:
[   10.584474][  T244]  <TASK>
[ 10.584582][ T244] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.584803][ T244] ? __warn (kernel/panic.c:748) 
[ 10.584969][ T244] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.585202][ T244] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.585432][ T244] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.585598][ T244] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.585816][ T244] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.586046][ T244] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.586290][ T244] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.586578][ T244] ? _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) 
[ 10.586803][ T244] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.587026][ T244] register_netdevice (net/core/dev.c:11003) 
[ 10.587260][ T244] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.587491][ T244] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.587731][ T244] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.588006][ T244] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.588186][ T244] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.588474][ T244] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.588752][ T244] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.589031][ T244] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.589295][ T244] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.589576][ T244] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.589798][ T244] ? 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)) 
[ 10.589963][ T244] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.590201][ T244] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.590425][ T244] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.590645][ T244] driver_probe_device (drivers/base/dd.c:830) 
[ 10.590865][ T244] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.591111][ T244] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.591383][ T244] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.591599][ T244] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.591813][ T244] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.592032][ T244] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.592261][ T244] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.592491][ T244] __device_attach (drivers/base/dd.c:1030) 
[ 10.592709][ T244] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.592924][ T244] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.593175][ T244] ? 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) 
[ 10.593404][ T244] bus_probe_device (drivers/base/bus.c:537) 
[ 10.593624][ T244] device_add (drivers/base/core.c:3672) 
[ 10.593846][ T244] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.594082][ T244] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.594322][ T244] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.594604][ T244] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.594888][ T244] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.595114][ T244] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.595338][ T244] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.595553][ T244] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.595783][ T244] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.595958][ T244] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.596193][ T244] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.596414][ T244] ? 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) 
[ 10.596650][ T244] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.596876][ T244] ksys_write (fs/read_write.c:731) 
[ 10.597043][ T244] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.597269][ T244] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.597503][ T244] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.597727][ T244] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.597992][  T244] RIP: 0033:0x7f50c43eeb77
[ 10.598238][ T244] 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
[   10.598992][  T244] RSP: 002b:00007ffd9c1c0fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.599355][  T244] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f50c43eeb77
[   10.599682][  T244] RDX: 0000000000000005 RSI: 0000565305ea52f0 RDI: 0000000000000001
[   10.600001][  T244] RBP: 0000565305ea52f0 R08: 0000000000000004 R09: 0000000000000077
[   10.600335][  T244] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000005


Finger prints:
__netdev_update_features:register_netdevice:nsim_create:__nsim_dev_port_add:nsim_dev_port_add_all