======================================
| 0
| xx__-> [    9.341655][  T228] ------------[ cut here ]------------
| [ 9.342100][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [    9.342717][  T228] Modules linked in: netdevsim
[    9.343470][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.343797][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.344179][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[    9.345072][  T228] RSP: 0018:ffffc90000b77520 EFLAGS: 00010246
[    9.345422][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.345805][  T228] RDX: 0000000000000000 RSI: ffff88800618ac98 RDI: ffff888002520b78
[    9.346198][  T228] RBP: ffffffffb4923440 R08: 0000000000000000 R09: fffffbfff64fd83c
[    9.346580][  T228] R10: ffffffffb27ec1e7 R11: ffff888002520040 R12: 0000000000000000
[    9.346968][  T228] R13: ffff88800618a128 R14: ffff88800618a008 R15: ffff88800618a000
[    9.347361][  T228] FS:  00007f6741121740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[    9.347802][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.348141][  T228] CR2: 000055fb7fcc6b38 CR3: 00000000097c4004 CR4: 0000000000772ef0
[    9.348526][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.348902][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.349305][  T228] PKRU: 55555554
[    9.349512][  T228] Call Trace:
[    9.349719][  T228]  <TASK>
[ 9.349868][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.350150][ T228] ? __warn (kernel/panic.c:748) 
[ 9.350360][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.350625][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.350906][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.351121][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.351386][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.351661][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.351935][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.352274][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 9.352547][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.352815][ T228] register_netdevice (net/core/dev.c:11003) 
[ 9.353100][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.353380][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.353663][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.353991][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.354209][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.354548][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.354877][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.355225][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.355503][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.355829][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.356116][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 9.356321][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.356592][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.356862][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.357137][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 9.357402][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.357666][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.357990][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.358265][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.358523][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.358784][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.359047][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.359325][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 9.359593][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.359853][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.360128][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 9.360398][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 9.360670][ T228] device_add (drivers/base/core.c:3672) 
[ 9.360946][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.361236][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.361511][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.361853][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.362198][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.362461][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.362726][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.362983][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.363259][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.363471][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.363742][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.363999][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.364284][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.364554][ T228] ksys_write (fs/read_write.c:731) 
[ 9.364758][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.365016][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.365299][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.365568][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.365885][  T228] RIP: 0033:0x7f6741262b77
[ 9.366166][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[    9.367028][  T228] RSP: 002b:00007ffc685111b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.367429][  T228] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f6741262b77
[    9.367812][  T228] RDX: 0000000000000008 RSI: 000055fb7fcc5b30 RDI: 0000000000000001
[    9.368204][  T228] RBP: 000055fb7fcc5b30 R08: 0000000000000000 R09: 00007f67412d54e0
[    9.368586][  T228] R10: 00007f67412d53e0 R11: 0000000000000246 R12: 0000000000000008
[    9.368967][  T228] R13: 00007f674131e760 R14: 0000000000000008 R15: 00007f67413199c0
| [   14.962273][  T382] ------------[ cut here ]------------
| [ 14.962627][ T382] WARNING: CPU: 3 PID: 382 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) 
| [   14.963259][  T382] Modules linked in: netdevsim
| [   14.963985][  T382] Tainted: [W]=WARN
[   14.964195][  T382] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 14.964491][ T382] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.964798][ T382] 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
[   14.965631][  T382] RSP: 0018:ffffc900005d7520 EFLAGS: 00010246
[   14.965928][  T382] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   14.966295][  T382] RDX: 0000000000000000 RSI: ffff88800aab2c98 RDI: ffff88800a3150f8
[   14.966647][  T382] RBP: ffffffffb4923440 R08: 0000000000000000 R09: fffffbfff64fd83c
[   14.967001][  T382] R10: ffffffffb27ec1e7 R11: ffff88800a3145c0 R12: 0000000000000000
[   14.967365][  T382] R13: ffff88800aab2128 R14: ffff88800aab2008 R15: ffff88800aab2000
[   14.967719][  T382] FS:  00007f6741121740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   14.968146][  T382] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.968443][  T382] CR2: 00007f67412d5733 CR3: 000000000d5e4002 CR4: 0000000000772ef0
[   14.968795][  T382] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   14.969161][  T382] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   14.969510][  T382] PKRU: 55555554
[   14.969689][  T382] Call Trace:
[   14.969867][  T382]  <TASK>
[ 14.969992][ T382] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.970247][ T382] ? __warn (kernel/panic.c:748) 
[ 14.970437][ T382] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.970686][ T382] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 14.970935][ T382] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 14.971129][ T382] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 14.971368][ T382] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 14.971619][ T382] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.971872][ T382] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 14.972194][ T382] ? _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) 
[ 14.972446][ T382] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 14.972687][ T382] register_netdevice (net/core/dev.c:11003) 
[ 14.972930][ T382] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 14.973194][ T382] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 14.973454][ T382] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 14.973756][ T382] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 14.973941][ T382] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 14.974260][ T382] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 14.974563][ T382] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 14.974868][ T382] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 14.975135][ T382] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 14.975434][ T382] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 14.975678][ T382] ? 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)) 
[ 14.975862][ T382] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 14.976118][ T382] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 14.976367][ T382] __driver_probe_device (drivers/base/dd.c:800) 
[ 14.976609][ T382] driver_probe_device (drivers/base/dd.c:830) 
[ 14.976848][ T382] __device_attach_driver (drivers/base/dd.c:959) 
[ 14.977100][ T382] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 14.977395][ T382] bus_for_each_drv (drivers/base/bus.c:462) 
[ 14.977636][ T382] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 14.977874][ T382] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 14.978122][ T382] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 14.978359][ T382] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 14.978608][ T382] __device_attach (drivers/base/dd.c:1030) 
[ 14.978849][ T382] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 14.979099][ T382] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 14.979343][ T382] ? 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) 
[ 14.979588][ T382] bus_probe_device (drivers/base/bus.c:537) 
[ 14.979825][ T382] device_add (drivers/base/core.c:3672) 
[ 14.980066][ T382] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 14.980319][ T382] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 14.980572][ T382] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 14.980883][ T382] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 14.981209][ T382] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 14.981448][ T382] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 14.981691][ T382] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 14.981926][ T382] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 14.982188][ T382] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 14.982376][ T382] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 14.982618][ T382] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 14.982852][ T382] ? 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) 
[ 14.983116][ T382] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 14.983374][ T382] ksys_write (fs/read_write.c:731) 
[ 14.983557][ T382] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 14.983789][ T382] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 14.984038][ T382] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 14.984289][ T382] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   14.984587][  T382] RIP: 0033:0x7f6741262b77
[ 14.984861][ T382] 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
[   14.985681][  T382] RSP: 002b:00007ffc685111b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   14.986033][  T382] RAX: ffffffffffffffda RBX: 0000000000000008 RCX: 00007f6741262b77
[   14.986396][  T382] RDX: 0000000000000008 RSI: 000055fb7fcc78b0 RDI: 0000000000000001
[   14.986747][  T382] RBP: 000055fb7fcc78b0 R08: 0000000000000000 R09: 00007f67412d54e0
[   14.987103][  T382] R10: 00007f67412d53e0 R11: 0000000000000246 R12: 0000000000000008


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