======================================
| 0
| xx__-> [  540.843826][ T3617] ------------[ cut here ]------------
| [ 540.844172][ T3617] WARNING: CPU: 3 PID: 3617 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:10596) 
| [  540.844604][ T3617] Modules linked in: netdevsim psample vxlan nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nft_compat nf_tables unix_diag
[  540.845642][ T3617] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 540.845922][ T3617] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 540.846193][ T3617] Code: 00 e8 13 47 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 5f 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:	13 47 fe             	adc    -0x2(%rdi),%eax
   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 5f 99 00       	call   0x995fb9
  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
[  540.846933][ T3617] RSP: 0018:ffffc900004b7528 EFLAGS: 00010246
[  540.847195][ T3617] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  540.847511][ T3617] RDX: 0000000000000000 RSI: ffff888017902cd0 RDI: ffff888001bfd0f8
[  540.847823][ T3617] RBP: ffff88801397b8c0 R08: 0000000000000000 R09: fffffbfff3b82504
[  540.848132][ T3617] R10: ffffffff9dc12827 R11: ffff888001bfc5c0 R12: 0000000000000000
[  540.848448][ T3617] R13: ffff888017902130 R14: ffff888017902008 R15: ffff888017902000
[  540.848755][ T3617] FS:  00007f357808d740(0000) GS:ffff88806cf80000(0000) knlGS:0000000000000000
[  540.849116][ T3617] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  540.849375][ T3617] CR2: 000055cd3df522f8 CR3: 0000000012640001 CR4: 0000000000772ef0
[  540.849791][ T3617] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  540.850101][ T3617] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  540.850504][ T3617] PKRU: 55555554
[  540.850665][ T3617] Call Trace:
[  540.850935][ T3617]  <TASK>
[ 540.851048][ T3617] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 540.851260][ T3617] ? __warn (kernel/panic.c:748) 
[ 540.851516][ T3617] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 540.851725][ T3617] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 540.851939][ T3617] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 540.852097][ T3617] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 540.852306][ T3617] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 540.852555][ T3617] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 540.852763][ T3617] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 540.852976][ T3617] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 540.853236][ T3617] ? _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) 
[ 540.853465][ T3617] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 540.853689][ T3617] register_netdevice (net/core/dev.c:11033) 
[ 540.853905][ T3617] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 540.854107][ T3617] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 540.854328][ T3617] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 540.854562][ T3617] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 540.854826][ T3617] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 540.854986][ T3617] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 540.855258][ T3617] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 540.855530][ T3617] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 540.855794][ T3617] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 540.856012][ T3617] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 540.856271][ T3617] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 540.856502][ T3617] ? 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)) 
[ 540.856665][ T3617] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 540.856879][ T3617] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 540.857091][ T3617] __driver_probe_device (drivers/base/dd.c:800) 
[ 540.857302][ T3617] driver_probe_device (drivers/base/dd.c:830) 
[ 540.857518][ T3617] __device_attach_driver (drivers/base/dd.c:959) 
[ 540.857727][ T3617] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 540.857981][ T3617] bus_for_each_drv (drivers/base/bus.c:462) 
[ 540.858192][ T3617] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 540.858409][ T3617] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 540.858615][ T3617] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 540.858818][ T3617] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 540.859030][ T3617] __device_attach (drivers/base/dd.c:1030) 
[ 540.859235][ T3617] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 540.859451][ T3617] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 540.859660][ T3617] ? 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) 
[ 540.859873][ T3617] bus_probe_device (drivers/base/bus.c:537) 
[ 540.860081][ T3617] device_add (drivers/base/core.c:3672) 
[ 540.860290][ T3617] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 540.860514][ T3617] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 540.860734][ T3617] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 540.861000][ T3617] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 540.861272][ T3617] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 540.861485][ T3617] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 540.861699][ T3617] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 540.861902][ T3617] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 540.862113][ T3617] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 540.862277][ T3617] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 540.862501][ T3617] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 540.862708][ T3617] ? 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) 
[ 540.862923][ T3617] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 540.863136][ T3617] ksys_write (fs/read_write.c:731) 
[ 540.863294][ T3617] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 540.863513][ T3617] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 540.863736][ T3617] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 540.863945][ T3617] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  540.864200][ T3617] RIP: 0033:0x7f35781ceb77
[ 540.864434][ T3617] 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
[  540.865142][ T3617] RSP: 002b:00007ffdd7101998 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  540.865464][ T3617] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f35781ceb77
[  540.865776][ T3617] RDX: 0000000000000007 RSI: 000055cd3df512f0 RDI: 0000000000000001
[  540.866083][ T3617] RBP: 000055cd3df512f0 R08: 0000000000000006 R09: 0000000000000077
[  540.866402][ T3617] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000007
[  540.866710][ T3617] R13: 00007f357828a760 R14: 0000000000000007 R15: 00007f35782859c0
| [  555.830288][ T3662] ------------[ cut here ]------------
| [ 555.830702][ T3662] WARNING: CPU: 3 PID: 3662 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:10596) 
| [  555.831108][ T3662] Modules linked in: drop_monitor act_gact cls_flower sch_ingress netdevsim psample vxlan nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nft_compat nf_tables unix_diag
| [  555.832238][ T3662] Tainted: [W]=WARN
[  555.832423][ T3662] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 555.832681][ T3662] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 555.832943][ T3662] Code: 00 e8 13 47 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 5f 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:	13 47 fe             	adc    -0x2(%rdi),%eax
   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 5f 99 00       	call   0x995fb9
  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
[  555.833666][ T3662] RSP: 0018:ffffc90000647528 EFLAGS: 00010246
[  555.833926][ T3662] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  555.834228][ T3662] RDX: 0000000000000000 RSI: ffff88801991acd0 RDI: ffff8880051b2e38
[  555.834549][ T3662] RBP: ffff88801397d500 R08: 0000000000000000 R09: fffffbfff3b82504
[  555.834858][ T3662] R10: ffffffff9dc12827 R11: ffff8880051b2300 R12: 0000000000000000
[  555.835164][ T3662] R13: ffff88801991a130 R14: ffff88801991a008 R15: ffff88801991a000
[  555.835630][ T3662] FS:  00007f36583d1740(0000) GS:ffff88806cf80000(0000) knlGS:0000000000000000
[  555.835993][ T3662] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  555.836251][ T3662] CR2: 00005579f82fc2f8 CR3: 000000000501c004 CR4: 0000000000772ef0
[  555.836569][ T3662] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  555.836879][ T3662] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  555.837183][ T3662] PKRU: 55555554
[  555.837341][ T3662] Call Trace:
[  555.837506][ T3662]  <TASK>
[ 555.837636][ T3662] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 555.837843][ T3662] ? __warn (kernel/panic.c:748) 
[ 555.838001][ T3662] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 555.838211][ T3662] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 555.838432][ T3662] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 555.838591][ T3662] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 555.838798][ T3662] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 555.839017][ T3662] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 555.839237][ T3662] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 555.839476][ T3662] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 555.839737][ T3662] ? _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) 
[ 555.839948][ T3662] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 555.840162][ T3662] register_netdevice (net/core/dev.c:11033) 
[ 555.840374][ T3662] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 555.840592][ T3662] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 555.840813][ T3662] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 555.841033][ T3662] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 555.841294][ T3662] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 555.841462][ T3662] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 555.841731][ T3662] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 555.841999][ T3662] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 555.842263][ T3662] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 555.842493][ T3662] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 555.842753][ T3662] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 555.842960][ T3662] ? 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)) 
[ 555.843117][ T3662] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 555.843332][ T3662] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 555.843581][ T3662] __driver_probe_device (drivers/base/dd.c:800) 
[ 555.843792][ T3662] driver_probe_device (drivers/base/dd.c:830) 
[ 555.843998][ T3662] __device_attach_driver (drivers/base/dd.c:959) 
[ 555.844206][ T3662] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 555.844468][ T3662] bus_for_each_drv (drivers/base/bus.c:462) 
[ 555.844676][ T3662] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 555.844879][ T3662] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 555.845088][ T3662] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 555.845290][ T3662] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 555.845512][ T3662] __device_attach (drivers/base/dd.c:1030) 
[ 555.845716][ T3662] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 555.845920][ T3662] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 555.846127][ T3662] ? 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) 
[ 555.846340][ T3662] bus_probe_device (drivers/base/bus.c:537) 
[ 555.846563][ T3662] device_add (drivers/base/core.c:3672) 
[ 555.846773][ T3662] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 555.846976][ T3662] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 555.847193][ T3662] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 555.847479][ T3662] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 555.847749][ T3662] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 555.847951][ T3662] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 555.848164][ T3662] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 555.848368][ T3662] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 555.848591][ T3662] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 555.848758][ T3662] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 555.848968][ T3662] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 555.849173][ T3662] ? 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) 
[ 555.849385][ T3662] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 555.849613][ T3662] ksys_write (fs/read_write.c:731) 
[ 555.849772][ T3662] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 555.849975][ T3662] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 555.850190][ T3662] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 555.850413][ T3662] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  555.850668][ T3662] RIP: 0033:0x7f3658512b77
[ 555.850878][ T3662] 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
[  555.851606][ T3662] RSP: 002b:00007ffd32af6a48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  555.851913][ T3662] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f3658512b77
[  555.852215][ T3662] RDX: 0000000000000007 RSI: 00005579f82fb2f0 RDI: 0000000000000001
[  555.852534][ T3662] RBP: 00005579f82fb2f0 R08: 0000000000000006 R09: 0000000000000077
[  555.852839][ T3662] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000007


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