======================================
| 0
| xx__-> [    9.701892][  T243] ------------[ cut here ]------------
| [ 9.702326][ T243] WARNING: CPU: 3 PID: 243 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [    9.702765][  T243] Modules linked in: netdevsim
[    9.703463][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.703734][ T243] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.704030][ T243] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[    9.704794][  T243] RSP: 0018:ffffc900006e7520 EFLAGS: 00010246
[    9.705082][  T243] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.705411][  T243] RDX: 0000000000000000 RSI: ffff88800ba3ac98 RDI: ffff888009352e38
[    9.705739][  T243] RBP: ffff888009168040 R08: 0000000000000000 R09: fffffbfff327d83c
[    9.706111][  T243] R10: ffffffff993ec1e7 R11: ffff888009352300 R12: 0000000000000000
[    9.706435][  T243] R13: ffff88800ba3a128 R14: ffff88800ba3a008 R15: ffff88800ba3a000
[    9.706762][  T243] FS:  00007f9ab719b740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[    9.707145][  T243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.707423][  T243] CR2: 000055665715c2f8 CR3: 000000000bc82005 CR4: 0000000000772ef0
[    9.707748][  T243] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.708081][  T243] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.708403][  T243] PKRU: 55555554
[    9.708569][  T243] Call Trace:
[    9.708736][  T243]  <TASK>
[ 9.708853][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.709085][ T243] ? __warn (kernel/panic.c:748) 
[ 9.709253][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.709471][ T243] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.709698][ T243] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.709872][ T243] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.710116][ T243] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.710354][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.710585][ T243] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.710861][ T243] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 9.711093][ T243] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.711316][ T243] register_netdevice (net/core/dev.c:11003) 
[ 9.711543][ T243] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.711775][ T243] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.712037][ T243] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.712318][ T243] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.712487][ T243] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.712771][ T243] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.713059][ T243] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.713339][ T243] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.713567][ T243] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.713845][ T243] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.714094][ T243] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 9.714261][ T243] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.714488][ T243] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.714717][ T243] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.714938][ T243] driver_probe_device (drivers/base/dd.c:830) 
[ 9.715167][ T243] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.715388][ T243] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.715657][ T243] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.715876][ T243] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.716107][ T243] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.716328][ T243] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.716546][ T243] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.716767][ T243] __device_attach (drivers/base/dd.c:1030) 
[ 9.716995][ T243] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.717212][ T243] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.717430][ T243] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 9.717655][ T243] bus_probe_device (drivers/base/bus.c:537) 
[ 9.717878][ T243] device_add (drivers/base/core.c:3672) 
[ 9.718124][ T243] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.718343][ T243] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.718573][ T243] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.718856][ T243] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.719147][ T243] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.719370][ T243] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.719594][ T243] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.719807][ T243] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.720048][ T243] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.720223][ T243] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.720445][ T243] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.720658][ T243] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.720889][ T243] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.721129][ T243] ksys_write (fs/read_write.c:731) 
[ 9.721295][ T243] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.721511][ T243] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.721740][ T243] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.721987][ T243] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.722259][  T243] RIP: 0033:0x7f9ab72dcb77
[ 9.722489][ T243] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[    9.723256][  T243] RSP: 002b:00007ffe37eb4a68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.723589][  T243] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f9ab72dcb77
[    9.723919][  T243] RDX: 0000000000000005 RSI: 000055665715b2f0 RDI: 0000000000000001
[    9.724253][  T243] RBP: 000055665715b2f0 R08: 0000000000000004 R09: 0000000000000077
[    9.724585][  T243] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000005
[    9.724911][  T243] R13: 00007f9ab7398760 R14: 0000000000000005 R15: 00007f9ab73939c0
| [    9.739227][  T243] ------------[ cut here ]------------
| [ 9.739464][ T243] WARNING: CPU: 3 PID: 243 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [    9.739898][  T243] Modules linked in: netdevsim
| [    9.740520][  T243] Tainted: [W]=WARN
[    9.740686][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.740966][ T243] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.741239][ T243] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[    9.742027][  T243] RSP: 0018:ffffc900006e7520 EFLAGS: 00010246
[    9.742299][  T243] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.742619][  T243] RDX: 0000000000000000 RSI: ffff888009772c98 RDI: ffff888009352e38
[    9.742936][  T243] RBP: ffff888009168040 R08: 0000000000000000 R09: fffffbfff327d83c
[    9.743272][  T243] R10: ffffffff993ec1e7 R11: ffff888009352300 R12: 0000000000000000
[    9.743589][  T243] R13: ffff888009772128 R14: ffff888009772008 R15: ffff888009772000
[    9.743906][  T243] FS:  00007f9ab719b740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[    9.744280][  T243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.744552][  T243] CR2: 000055665715c2f8 CR3: 000000000bc82005 CR4: 0000000000772ef0
[    9.744870][  T243] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.745194][  T243] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.745512][  T243] PKRU: 55555554
[    9.745676][  T243] Call Trace:
[    9.745843][  T243]  <TASK>
[ 9.745981][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.746201][ T243] ? __warn (kernel/panic.c:748) 
[ 9.746371][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.746591][ T243] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.746816][ T243] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.746992][ T243] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.747208][ T243] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.747441][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.747665][ T243] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.747940][ T243] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 9.748170][ T243] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.748390][ T243] register_netdevice (net/core/dev.c:11003) 
[ 9.748609][ T243] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.748836][ T243] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.749081][ T243] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.749355][ T243] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.749521][ T243] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.749803][ T243] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.750118][ T243] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.750397][ T243] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.750626][ T243] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.750896][ T243] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.751127][ T243] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 9.751291][ T243] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.751514][ T243] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.751734][ T243] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.751966][ T243] driver_probe_device (drivers/base/dd.c:830) 
[ 9.752187][ T243] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.752404][ T243] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.752671][ T243] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.752890][ T243] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.753111][ T243] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.753328][ T243] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.753545][ T243] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.753772][ T243] __device_attach (drivers/base/dd.c:1030) 
[ 9.754019][ T243] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.754233][ T243] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.754449][ T243] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 9.754674][ T243] bus_probe_device (drivers/base/bus.c:537) 
[ 9.754894][ T243] device_add (drivers/base/core.c:3672) 
[ 9.755125][ T243] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.755344][ T243] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.755574][ T243] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.755854][ T243] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.756142][ T243] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.756357][ T243] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.756580][ T243] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.756794][ T243] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.757028][ T243] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.757202][ T243] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.757425][ T243] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.757639][ T243] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.757864][ T243] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.758118][ T243] ksys_write (fs/read_write.c:731) 
[ 9.758300][ T243] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.758517][ T243] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.758743][ T243] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.758991][ T243] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.759258][  T243] RIP: 0033:0x7f9ab72dcb77
[ 9.759489][ T243] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[    9.760274][  T243] RSP: 002b:00007ffe37eb4a68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.760597][  T243] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f9ab72dcb77
[    9.760915][  T243] RDX: 0000000000000005 RSI: 000055665715b2f0 RDI: 0000000000000001
[    9.761242][  T243] RBP: 000055665715b2f0 R08: 0000000000000004 R09: 0000000000000077
[    9.761569][  T243] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000005
[    9.761884][  T243] R13: 00007f9ab7398760 R14: 0000000000000005 R15: 00007f9ab73939c0
| [    9.775505][  T243] ------------[ cut here ]------------
| [ 9.775735][ T243] WARNING: CPU: 3 PID: 243 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [    9.776176][  T243] Modules linked in: netdevsim
| [    9.776778][  T243] Tainted: [W]=WARN
[    9.776961][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.777230][ T243] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.777501][ T243] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[    9.778286][  T243] RSP: 0018:ffffc900006e7520 EFLAGS: 00010246
[    9.778564][  T243] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.778884][  T243] RDX: 0000000000000000 RSI: ffff888009e6ac98 RDI: ffff888009352e38
[    9.779216][  T243] RBP: ffff888009168040 R08: 0000000000000000 R09: fffffbfff327d83c
[    9.779534][  T243] R10: ffffffff993ec1e7 R11: ffff888009352300 R12: 0000000000000000
[    9.779865][  T243] R13: ffff888009e6a128 R14: ffff888009e6a008 R15: ffff888009e6a000
[    9.780200][  T243] FS:  00007f9ab719b740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[    9.780572][  T243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.780840][  T243] CR2: 000055665715c2f8 CR3: 000000000bc82005 CR4: 0000000000772ef0
[    9.781169][  T243] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.781490][  T243] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.781806][  T243] PKRU: 55555554
[    9.781993][  T243] Call Trace:
[    9.782157][  T243]  <TASK>
[ 9.782270][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.782486][ T243] ? __warn (kernel/panic.c:748) 
[ 9.782653][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.782876][ T243] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.783113][ T243] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.783280][ T243] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.783497][ T243] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.783725][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.783963][ T243] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.784237][ T243] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 9.784468][ T243] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.784688][ T243] register_netdevice (net/core/dev.c:11003) 
[ 9.784909][ T243] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.785149][ T243] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.785381][ T243] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.785658][ T243] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.785828][ T243] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.786139][ T243] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.786416][ T243] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.786696][ T243] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.786927][ T243] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.787213][ T243] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.787438][ T243] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 9.787604][ T243] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.787830][ T243] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.788063][ T243] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.788286][ T243] driver_probe_device (drivers/base/dd.c:830) 
[ 9.788503][ T243] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.788723][ T243] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.789002][ T243] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.789221][ T243] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.789433][ T243] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.789648][ T243] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.789870][ T243] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.790120][ T243] __device_attach (drivers/base/dd.c:1030) 
[ 9.790332][ T243] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.790550][ T243] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.790767][ T243] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 9.791221][ T243] bus_probe_device (drivers/base/bus.c:537) 
[ 9.791452][ T243] device_add (drivers/base/core.c:3672) 
[ 9.791675][ T243] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.791889][ T243] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.792135][ T243] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.792426][ T243] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.792713][ T243] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.792928][ T243] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.793164][ T243] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.793381][ T243] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.793604][ T243] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.793778][ T243] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.794143][ T243] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.794368][ T243] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.794592][ T243] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.794818][ T243] ksys_write (fs/read_write.c:731) 
[ 9.795001][ T243] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.795218][ T243] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.795447][ T243] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.795665][ T243] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.795939][  T243] RIP: 0033:0x7f9ab72dcb77
[ 9.796201][ T243] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[    9.796958][  T243] RSP: 002b:00007ffe37eb4a68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.797284][  T243] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f9ab72dcb77
[    9.797606][  T243] RDX: 0000000000000005 RSI: 000055665715b2f0 RDI: 0000000000000001
[    9.797925][  T243] RBP: 000055665715b2f0 R08: 0000000000000004 R09: 0000000000000077
[    9.798271][  T243] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000005
[    9.798593][  T243] R13: 00007f9ab7398760 R14: 0000000000000005 R15: 00007f9ab73939c0
| [    9.819768][  T243] ------------[ cut here ]------------
| [ 9.820029][ T243] WARNING: CPU: 3 PID: 243 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [    9.820459][  T243] Modules linked in: netdevsim
| [    9.821082][  T243] Tainted: [W]=WARN
[    9.821248][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.821516][ T243] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.821788][ T243] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[    9.822546][  T243] RSP: 0018:ffffc900006e7520 EFLAGS: 00010246
[    9.822816][  T243] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.823144][  T243] RDX: 0000000000000000 RSI: ffff88800b472c98 RDI: ffff888009352e38
[    9.823462][  T243] RBP: ffff888009168040 R08: 0000000000000000 R09: fffffbfff327d83c
[    9.823782][  T243] R10: ffffffff993ec1e7 R11: ffff888009352300 R12: 0000000000000000
[    9.824111][  T243] R13: ffff88800b472128 R14: ffff88800b472008 R15: ffff88800b472000
[    9.824431][  T243] FS:  00007f9ab719b740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[    9.824799][  T243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.825086][  T243] CR2: 000055665715c2f8 CR3: 000000000bc82005 CR4: 0000000000772ef0
[    9.825403][  T243] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.825717][  T243] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.826046][  T243] PKRU: 55555554
[    9.826208][  T243] Call Trace:
[    9.826368][  T243]  <TASK>
[ 9.826483][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.826698][ T243] ? __warn (kernel/panic.c:748) 
[ 9.826866][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.827096][ T243] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.827317][ T243] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.827483][ T243] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.827698][ T243] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.827926][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.828168][ T243] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.828444][ T243] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 9.828665][ T243] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.828888][ T243] register_netdevice (net/core/dev.c:11003) 
[ 9.829122][ T243] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.829352][ T243] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.829588][ T243] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.829868][ T243] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.830048][ T243] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.830329][ T243] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.830606][ T243] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.830885][ T243] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.831129][ T243] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.831399][ T243] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.831616][ T243] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 9.831780][ T243] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.832013][ T243] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.832248][ T243] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.832470][ T243] driver_probe_device (drivers/base/dd.c:830) 
[ 9.832692][ T243] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.832911][ T243] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.833193][ T243] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.833413][ T243] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.833625][ T243] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.833842][ T243] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.834069][ T243] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.834295][ T243] __device_attach (drivers/base/dd.c:1030) 
[ 9.834509][ T243] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.834722][ T243] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.834940][ T243] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 9.835178][ T243] bus_probe_device (drivers/base/bus.c:537) 
[ 9.835401][ T243] device_add (drivers/base/core.c:3672) 
[ 9.835625][ T243] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.835840][ T243] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.836086][ T243] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.836368][ T243] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.836649][ T243] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.836864][ T243] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.837102][ T243] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.837318][ T243] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.837542][ T243] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.837714][ T243] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.837934][ T243] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.838161][ T243] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.838385][ T243] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.838610][ T243] ksys_write (fs/read_write.c:731) 
[ 9.838776][ T243] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.839017][ T243] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.839252][ T243] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.839472][ T243] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.839742][  T243] RIP: 0033:0x7f9ab72dcb77
[ 9.839983][ T243] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[    9.840731][  T243] RSP: 002b:00007ffe37eb4a68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.841072][  T243] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f9ab72dcb77
[    9.841397][  T243] RDX: 0000000000000005 RSI: 000055665715b2f0 RDI: 0000000000000001
[    9.841719][  T243] RBP: 000055665715b2f0 R08: 0000000000000004 R09: 0000000000000077
[    9.842058][  T243] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000005


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