======================================
| 0
| xx__-> [    9.208167][  T228] ------------[ cut here ]------------
| [ 9.208509][ T228] WARNING: CPU: 1 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) 
| [    9.208944][  T228] Modules linked in: netdevsim
[    9.209598][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.209873][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.210229][ 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
[    9.210982][  T228] RSP: 0018:ffffc90000ad7520 EFLAGS: 00010246
[    9.211276][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.211614][  T228] RDX: 0000000000000000 RSI: ffff888004fbac98 RDI: ffff888005132e38
[    9.211939][  T228] RBP: ffffffff9f323440 R08: 0000000000000000 R09: fffffbfff3a3d83c
[    9.212289][  T228] R10: ffffffff9d1ec1e7 R11: ffff888005132300 R12: 0000000000000000
[    9.212613][  T228] R13: ffff888004fba128 R14: ffff888004fba008 R15: ffff888004fba000
[    9.212969][  T228] FS:  00007f4006161740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[    9.213362][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.213639][  T228] CR2: 0000559a07ae47a8 CR3: 0000000008e6e002 CR4: 0000000000772ef0
[    9.213968][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.214303][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.214627][  T228] PKRU: 55555554
[    9.214794][  T228] Call Trace:
[    9.214965][  T228]  <TASK>
[ 9.215082][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.215313][ T228] ? __warn (kernel/panic.c:748) 
[ 9.215482][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.215700][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.215923][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.216088][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.216318][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.216547][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.216776][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.217052][ 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) 
[ 9.217292][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.217517][ T228] register_netdevice (net/core/dev.c:11003) 
[ 9.217744][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.217972][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.218218][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.218495][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.218662][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.218944][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.219238][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.219524][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.219755][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.220031][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.220266][ 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)) 
[ 9.220432][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.220662][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.220886][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.221133][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 9.221354][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.221577][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.221843][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.222083][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.222308][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.222524][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.222738][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.222958][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 9.223187][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.223400][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.223620][ 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) 
[ 9.223843][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 9.224062][ T228] device_add (drivers/base/core.c:3672) 
[ 9.224296][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.224513][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.224740][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.225018][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.225314][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.225529][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.225753][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.225968][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.226200][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.226374][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.226594][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.226810][ 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) 
[ 9.227036][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.227270][ T228] ksys_write (fs/read_write.c:731) 
[ 9.227435][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.227649][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.227877][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.228094][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.228379][  T228] RIP: 0033:0x7f40062a2b77
[ 9.228609][ 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
[    9.229370][  T228] RSP: 002b:00007fffc028a7d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.229712][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f40062a2b77
[    9.230038][  T228] RDX: 0000000000000004 RSI: 0000559a07ae37a0 RDI: 0000000000000001
[    9.230373][  T228] RBP: 0000559a07ae37a0 R08: 0000000000000003 R09: 0000000000000000
[    9.230695][  T228] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000004
[    9.231018][  T228] R13: 00007f400635e760 R14: 0000000000000004 R15: 00007f40063599c0
| [    9.267037][  T228] ------------[ cut here ]------------
| [ 9.267434][ T228] WARNING: CPU: 3 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) 
| [    9.267940][  T228] Modules linked in: netdevsim
| [    9.268572][  T228] Tainted: [W]=WARN
[    9.268751][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.269023][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.269320][ 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
[    9.270084][  T228] RSP: 0018:ffffc90000ad7520 EFLAGS: 00010246
[    9.270370][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.270690][  T228] RDX: 0000000000000000 RSI: ffff888004eeac98 RDI: ffff888005132e38
[    9.271018][  T228] RBP: ffffffff9f323440 R08: 0000000000000000 R09: fffffbfff3a3d83c
[    9.271349][  T228] R10: ffffffff9d1ec1e7 R11: ffff888005132300 R12: 0000000000000000
[    9.271671][  T228] R13: ffff888004eea128 R14: ffff888004eea008 R15: ffff888004eea000
[    9.271992][  T228] FS:  00007f4006161740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[    9.272381][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.272653][  T228] CR2: 00007fd3a9d21aa0 CR3: 0000000008e6e006 CR4: 0000000000772ef0
[    9.272976][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.273302][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.273636][  T228] PKRU: 55555554
[    9.273808][  T228] Call Trace:
[    9.273974][  T228]  <TASK>
[ 9.274087][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.274392][ T228] ? __warn (kernel/panic.c:748) 
[ 9.274565][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.274786][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.275017][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.275198][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.275421][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.275657][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.275882][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.276170][ 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) 
[ 9.276398][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.276620][ T228] register_netdevice (net/core/dev.c:11003) 
[ 9.276843][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.277078][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.277325][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.277604][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.277774][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.278060][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.278345][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.278699][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.278932][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.279219][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.279455][ 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)) 
[ 9.279620][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.279847][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.280073][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.280309][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 9.280528][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.280750][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.281019][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.281248][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.281467][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.281688][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.281910][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.282144][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 9.282362][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.282577][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.282796][ 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) 
[ 9.283020][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 9.283249][ T228] device_add (drivers/base/core.c:3672) 
[ 9.283476][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.283691][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.283919][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.284210][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.284492][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.284710][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.284935][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.285162][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.285386][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.285557][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.285778][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 9.286004][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.286236][ T228] ksys_write (fs/read_write.c:731) 
[ 9.286402][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.286634][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.286852][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.287125][  T228] RIP: 0033:0x7f40062a2b77
[ 9.287345][ 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
[    9.288088][  T228] RSP: 002b:00007fffc028a7d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.288432][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f40062a2b77
[    9.288753][  T228] RDX: 0000000000000004 RSI: 0000559a07ae37a0 RDI: 0000000000000001
[    9.289072][  T228] RBP: 0000559a07ae37a0 R08: 0000000000000000 R09: 00007f40063154e0
[    9.289399][  T228] R10: 00007f40063153e0 R11: 0000000000000246 R12: 0000000000000004


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