======================================
| 0
| xx__-> [   92.844110][  T966] ------------[ cut here ]------------
| [ 92.844573][ T966] WARNING: CPU: 2 PID: 966 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) 
| [   92.845161][  T966] Modules linked in: netdevsim psample unix_diag
[   92.845904][  T966] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 92.846221][ T966] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 92.846524][ T966] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[   92.847331][  T966] RSP: 0018:ffffc900008e7528 EFLAGS: 00010246
[   92.847628][  T966] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   92.847981][  T966] RDX: 0000000000000000 RSI: ffff888012e3acd0 RDI: ffff888010d3ae38
[   92.848335][  T966] RBP: ffffffff8ca53580 R08: 0000000000000000 R09: fffffbfff1502504
[   92.848694][  T966] R10: ffffffff8a812827 R11: ffff888010d3a300 R12: 0000000000000000
[   92.849037][  T966] R13: ffff888012e3a130 R14: ffff888012e3a008 R15: ffff888012e3a000
[   92.849412][  T966] FS:  00007f195bebc740(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[   92.849821][  T966] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.850126][  T966] CR2: 0000559222d3ff88 CR3: 000000000c300001 CR4: 0000000000772ef0
[   92.850477][  T966] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   92.850820][  T966] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   92.851173][  T966] PKRU: 55555554
[   92.851364][  T966] Call Trace:
[   92.851551][  T966]  <TASK>
[ 92.851685][ T966] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 92.851925][ T966] ? __warn (kernel/panic.c:748) 
[ 92.852121][ T966] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 92.852361][ T966] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 92.852600][ T966] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 92.852783][ T966] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 92.853017][ T966] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 92.853275][ T966] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 92.853510][ T966] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 92.853748][ T966] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 92.854056][ T966] ? _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) 
[ 92.854297][ T966] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 92.854546][ T966] register_netdevice (net/core/dev.c:11003) 
[ 92.854789][ T966] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 92.855023][ T966] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 92.855283][ T966] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 92.855537][ T966] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 92.855933][ T966] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 92.856144][ T966] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 92.856444][ T966] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 92.856738][ T966] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 92.857033][ T966] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 92.857297][ T966] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 92.857589][ T966] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 92.857826][ T966] ? 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)) 
[ 92.858006][ T966] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 92.858260][ T966] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 92.858500][ T966] __driver_probe_device (drivers/base/dd.c:800) 
[ 92.858738][ T966] driver_probe_device (drivers/base/dd.c:830) 
[ 92.858971][ T966] __device_attach_driver (drivers/base/dd.c:959) 
[ 92.859221][ T966] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 92.859504][ T966] bus_for_each_drv (drivers/base/bus.c:462) 
[ 92.859735][ T966] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 92.859966][ T966] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 92.860211][ T966] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 92.860444][ T966] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 92.860682][ T966] __device_attach (drivers/base/dd.c:1030) 
[ 92.860919][ T966] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 92.861159][ T966] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 92.861393][ T966] ? 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) 
[ 92.861632][ T966] bus_probe_device (drivers/base/bus.c:537) 
[ 92.861870][ T966] device_add (drivers/base/core.c:3672) 
[ 92.862115][ T966] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 92.862346][ T966] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 92.862591][ T966] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 92.862885][ T966] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 92.863196][ T966] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 92.863433][ T966] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 92.863667][ T966] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 92.863896][ T966] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 92.864177][ T966] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 92.864371][ T966] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 92.864608][ T966] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 92.864836][ T966] ? 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) 
[ 92.865097][ T966] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 92.865336][ T966] ksys_write (fs/read_write.c:731) 
[ 92.865517][ T966] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 92.865749][ T966] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 92.866000][ T966] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 92.866251][ T966] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   92.866537][  T966] RIP: 0033:0x7f195bffdb77
[ 92.866776][ T966] 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
[   92.867734][  T966] RSP: 002b:00007ffc2c40c8f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   92.868097][  T966] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f195bffdb77
[   92.868440][  T966] RDX: 0000000000000004 RSI: 0000559222d3ef80 RDI: 0000000000000001
[   92.868775][  T966] RBP: 0000559222d3ef80 R08: 0000000000000003 R09: 0000000000000000
[   92.869146][  T966] R10: 0000000000000020 R11: 0000000000000246 R12: 0000000000000004
[   92.869487][  T966] R13: 00007f195c0b9760 R14: 0000000000000004 R15: 00007f195c0b49c0
| [   92.901292][  T966] ------------[ cut here ]------------
| [ 92.901858][ T966] WARNING: CPU: 1 PID: 966 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) 
| [   92.902649][  T966] Modules linked in: netdevsim psample unix_diag
| [   92.903863][  T966] Tainted: [W]=WARN
[   92.904190][  T966] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 92.904642][ T966] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 92.905153][ T966] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[   92.906440][  T966] RSP: 0018:ffffc900008e7528 EFLAGS: 00010246
[   92.906896][  T966] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   92.907460][  T966] RDX: 0000000000000000 RSI: ffff888012e42cd0 RDI: ffff888010d3ae38
[   92.908001][  T966] RBP: ffffffff8ca53580 R08: 0000000000000000 R09: fffffbfff1502504
[   92.908556][  T966] R10: ffffffff8a812827 R11: ffff888010d3a300 R12: 0000000000000000
[   92.909110][  T966] R13: ffff888012e42130 R14: ffff888012e42008 R15: ffff888012e42000
[   92.909647][  T966] FS:  00007f195bebc740(0000) GS:ffff88806ce80000(0000) knlGS:0000000000000000
[   92.910293][  T966] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.910876][  T966] CR2: 000056077d1aa958 CR3: 000000000c300003 CR4: 0000000000772ef0
[   92.911437][  T966] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   92.911975][  T966] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   92.912538][  T966] PKRU: 55555554
[   92.912808][  T966] Call Trace:
[   92.913097][  T966]  <TASK>
[ 92.913283][ T966] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 92.913653][ T966] ? __warn (kernel/panic.c:748) 
[ 92.913931][ T966] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 92.914321][ T966] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 92.914696][ T966] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 92.914985][ T966] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 92.915371][ T966] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 92.915766][ T966] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 92.916163][ T966] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 92.916548][ T966] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 92.917018][ T966] ? _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) 
[ 92.917422][ T966] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 92.917809][ T966] register_netdevice (net/core/dev.c:11003) 
[ 92.918188][ T966] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 92.918533][ T966] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 92.918916][ T966] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 92.919323][ T966] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 92.919773][ T966] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 92.920059][ T966] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 92.920524][ T966] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 92.920977][ T966] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 92.921435][ T966] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 92.921805][ T966] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 92.922246][ T966] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 92.922602][ T966] ? 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)) 
[ 92.922867][ T966] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 92.923243][ T966] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 92.923601][ T966] __driver_probe_device (drivers/base/dd.c:800) 
[ 92.923953][ T966] driver_probe_device (drivers/base/dd.c:830) 
[ 92.924318][ T966] __device_attach_driver (drivers/base/dd.c:959) 
[ 92.924689][ T966] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 92.925145][ T966] bus_for_each_drv (drivers/base/bus.c:462) 
[ 92.925520][ T966] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 92.925872][ T966] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 92.926239][ T966] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 92.926585][ T966] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 92.926941][ T966] __device_attach (drivers/base/dd.c:1030) 
[ 92.927323][ T966] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 92.927688][ T966] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 92.928079][ T966] ? 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) 
[ 92.928461][ T966] bus_probe_device (drivers/base/bus.c:537) 
[ 92.928807][ T966] device_add (drivers/base/core.c:3672) 
[ 92.929216][ T966] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 92.929564][ T966] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 92.929952][ T966] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 92.930461][ T966] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 92.931032][ T966] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 92.931425][ T966] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 92.931805][ T966] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 92.932181][ T966] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 92.932555][ T966] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 92.932850][ T966] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 92.933244][ T966] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 92.933639][ T966] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 92.934015][ T966] ksys_write (fs/read_write.c:731) 
[ 92.934322][ T966] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 92.934706][ T966] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 92.935097][ T966] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   92.935547][  T966] RIP: 0033:0x7f195bffdb77
[ 92.935927][ T966] 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
[   92.937191][  T966] RSP: 002b:00007ffc2c40c8f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   92.937734][  T966] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f195bffdb77
[   92.938279][  T966] RDX: 0000000000000004 RSI: 0000559222d3ef80 RDI: 0000000000000001
[   92.938818][  T966] RBP: 0000559222d3ef80 R08: 0000000000000000 R09: 00007f195c0704e0
[   92.939374][  T966] R10: 00007f195c0703e0 R11: 0000000000000246 R12: 0000000000000004


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