======================================
| 0
| xx__-> [    9.281759][  T230] ------------[ cut here ]------------
| [ 9.282225][ T230] WARNING: CPU: 2 PID: 230 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) 
| [    9.282785][  T230] Modules linked in: netdevsim
[    9.283446][  T230] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.283739][ T230] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.284095][ T230] 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
[    9.284888][  T230] RSP: 0000:ffffc90000af7520 EFLAGS: 00010246
[    9.285199][  T230] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.285579][  T230] RDX: 0000000000000000 RSI: ffff888004d92c98 RDI: ffff8880098c2e38
[    9.285927][  T230] RBP: ffffffff96b23440 R08: 0000000000000000 R09: fffffbfff293d83c
[    9.286284][  T230] R10: ffffffff949ec1e7 R11: ffff8880098c2300 R12: 0000000000000000
[    9.286632][  T230] R13: ffff888004d92128 R14: ffff888004d92008 R15: ffff888004d92000
[    9.286973][  T230] FS:  00007fc992464740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[    9.287383][  T230] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.287680][  T230] CR2: 00007fd9a96b1080 CR3: 000000000b794005 CR4: 0000000000772ef0
[    9.288034][  T230] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.288393][  T230] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.288742][  T230] PKRU: 55555554
[    9.288928][  T230] Call Trace:
[    9.289110][  T230]  <TASK>
[ 9.289241][ T230] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.289505][ T230] ? __warn (kernel/panic.c:748) 
[ 9.289692][ T230] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.289928][ T230] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.290168][ T230] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.290361][ T230] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.290594][ T230] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.290846][ T230] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.291088][ T230] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.291394][ T230] ? _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) 
[ 9.291635][ T230] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.291875][ T230] register_netdevice (net/core/dev.c:11003) 
[ 9.292198][ T230] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.292461][ T230] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.292713][ T230] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.293010][ T230] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.293192][ T230] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.293507][ T230] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.293806][ T230] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.294107][ T230] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.294365][ T230] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.294665][ T230] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.294904][ T230] ? 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)) 
[ 9.295091][ T230] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.295382][ T230] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.295640][ T230] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.295866][ T230] driver_probe_device (drivers/base/dd.c:830) 
[ 9.296087][ T230] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.296325][ T230] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.296592][ T230] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.296810][ T230] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.297033][ T230] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.297254][ T230] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.297485][ T230] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.297707][ T230] __device_attach (drivers/base/dd.c:1030) 
[ 9.297931][ T230] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.298146][ T230] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.298378][ T230] ? 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) 
[ 9.298604][ T230] bus_probe_device (drivers/base/bus.c:537) 
[ 9.298828][ T230] device_add (drivers/base/core.c:3672) 
[ 9.299052][ T230] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.299282][ T230] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.299513][ T230] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.299788][ T230] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.300075][ T230] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.300304][ T230] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.300534][ T230] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.300748][ T230] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.300977][ T230] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.301154][ T230] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.301388][ T230] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.301607][ T230] ? 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) 
[ 9.301835][ T230] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.302087][ T230] ksys_write (fs/read_write.c:731) 
[ 9.302278][ T230] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.302508][ T230] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.302750][ T230] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.302985][ T230] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.303264][  T230] RIP: 0033:0x7fc9925a5b77
[ 9.303506][ T230] 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
[    9.304224][  T230] RSP: 002b:00007ffcb53d7728 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.304553][  T230] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007fc9925a5b77
[    9.304870][  T230] RDX: 0000000000000008 RSI: 00005645478c0b30 RDI: 0000000000000001
[    9.305190][  T230] RBP: 00005645478c0b30 R08: 0000000000000000 R09: 00007fc9926184e0
[    9.305518][  T230] R10: 00007fc9926183e0 R11: 0000000000000246 R12: 0000000000000008
[    9.305833][  T230] R13: 00007fc992661760 R14: 0000000000000008 R15: 00007fc99265c9c0
| [   14.443942][  T383] ------------[ cut here ]------------
| [ 14.444307][ T383] WARNING: CPU: 2 PID: 383 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   14.444728][  T383] Modules linked in: netdevsim
| [   14.445471][  T383] Tainted: [W]=WARN
[   14.445661][  T383] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 14.445933][ T383] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.446201][ T383] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   14.446924][  T383] RSP: 0018:ffffc90000897520 EFLAGS: 00010246
[   14.447195][  T383] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   14.447521][  T383] RDX: 0000000000000000 RSI: ffff888008fc2c98 RDI: ffff88800a23ae38
[   14.447832][  T383] RBP: ffffffff96b23440 R08: 0000000000000000 R09: fffffbfff293d83c
[   14.448171][  T383] R10: ffffffff949ec1e7 R11: ffff88800a23a300 R12: 0000000000000000
[   14.448492][  T383] R13: ffff888008fc2128 R14: ffff888008fc2008 R15: ffff888008fc2000
[   14.448810][  T383] FS:  00007fc992464740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   14.449175][  T383] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.449452][  T383] CR2: 00007fc992618733 CR3: 0000000004f48003 CR4: 0000000000772ef0
[   14.449768][  T383] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   14.450084][  T383] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   14.450425][  T383] PKRU: 55555554
[   14.450594][  T383] Call Trace:
[   14.450766][  T383]  <TASK>
[ 14.450892][ T383] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.451124][ T383] ? __warn (kernel/panic.c:748) 
[ 14.451310][ T383] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.451545][ T383] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 14.451766][ T383] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 14.451935][ T383] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 14.452158][ T383] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 14.452403][ T383] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.452632][ T383] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 14.452903][ T383] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 14.453140][ T383] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 14.453367][ T383] register_netdevice (net/core/dev.c:11003) 
[ 14.453593][ T383] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 14.453820][ T383] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 14.454054][ T383] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 14.454334][ T383] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 14.454505][ T383] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 14.454785][ T383] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 14.455066][ T383] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 14.455351][ T383] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 14.455582][ T383] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 14.455866][ T383] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 14.456089][ T383] ? 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)) 
[ 14.456264][ T383] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 14.456510][ T383] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 14.456740][ T383] __driver_probe_device (drivers/base/dd.c:800) 
[ 14.456971][ T383] driver_probe_device (drivers/base/dd.c:830) 
[ 14.457187][ T383] __device_attach_driver (drivers/base/dd.c:959) 
[ 14.457426][ T383] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 14.457694][ T383] bus_for_each_drv (drivers/base/bus.c:462) 
[ 14.457923][ T383] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 14.458139][ T383] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 14.458367][ T383] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 14.458592][ T383] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 14.458813][ T383] __device_attach (drivers/base/dd.c:1030) 
[ 14.459034][ T383] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 14.459246][ T383] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 14.459473][ T383] ? 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) 
[ 14.459704][ T383] bus_probe_device (drivers/base/bus.c:537) 
[ 14.459931][ T383] device_add (drivers/base/core.c:3672) 
[ 14.460150][ T383] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 14.460375][ T383] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 14.460614][ T383] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 14.460895][ T383] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 14.461173][ T383] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 14.461405][ T383] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 14.461629][ T383] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 14.461843][ T383] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 14.462074][ T383] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 14.462249][ T383] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 14.462500][ T383] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 14.462736][ T383] ? 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) 
[ 14.462964][ T383] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 14.463197][ T383] ksys_write (fs/read_write.c:731) 
[ 14.463380][ T383] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 14.463602][ T383] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 14.463829][ T383] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 14.464051][ T383] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   14.464331][  T383] RIP: 0033:0x7fc9925a5b77
[ 14.464566][ T383] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   14.465311][  T383] RSP: 002b:00007ffcb53d7728 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   14.465629][  T383] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007fc9925a5b77
[   14.465947][  T383] RDX: 0000000000000008 RSI: 00005645478c28b0 RDI: 0000000000000001
[   14.466258][  T383] RBP: 00005645478c28b0 R08: 0000000000000000 R09: 00007fc9926184e0
[   14.466582][  T383] R10: 00007fc9926183e0 R11: 0000000000000246 R12: 0000000000000008


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