======================================
| xx__-> [   58.456996][ T1020] ip (1020) used greatest stack depth: 23800 bytes left
| [   58.656268][ T1022] ------------[ cut here ]------------
| [ 58.656654][ T1022] WARNING: CPU: 3 PID: 1022 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) 
| [   58.657078][ T1022] Modules linked in: netdevsim psample bonding sch_fq
[   58.657674][ T1022] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 58.657945][ T1022] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 58.658211][ T1022] 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
[   58.658928][ T1022] RSP: 0018:ffffc90000537528 EFLAGS: 00010246
[   58.659194][ T1022] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   58.659498][ T1022] RDX: 0000000000000000 RSI: ffff88800f892cd0 RDI: ffff8880053b8b78
[   58.659818][ T1022] RBP: ffff888009ad1c80 R08: 0000000000000000 R09: fffffbfff3ec2504
[   58.660122][ T1022] R10: ffffffff9f612827 R11: ffff8880053b8040 R12: 0000000000000000
[   58.660431][ T1022] R13: ffff88800f892130 R14: ffff88800f892008 R15: ffff88800f892000
[   58.660744][ T1022] FS:  00007fae0f1da740(0000) GS:ffff88806cf80000(0000) knlGS:0000000000000000
[   58.661105][ T1022] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   58.661361][ T1022] CR2: 00007fad77885960 CR3: 000000000a6ce003 CR4: 0000000000772ef0
[   58.661775][ T1022] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   58.662088][ T1022] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   58.662390][ T1022] PKRU: 55555554
[   58.662548][ T1022] Call Trace:
[   58.662714][ T1022]  <TASK>
[ 58.662823][ T1022] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 58.663030][ T1022] ? __warn (kernel/panic.c:748) 
[ 58.663187][ T1022] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 58.663399][ T1022] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 58.663607][ T1022] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 58.663771][ T1022] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 58.663973][ T1022] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 58.664190][ T1022] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 58.664395][ T1022] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 58.664603][ T1022] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 58.664875][ T1022] ? _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) 
[ 58.665085][ T1022] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 58.665292][ T1022] register_netdevice (net/core/dev.c:11003) 
[ 58.665504][ T1022] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 58.665713][ T1022] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 58.665929][ T1022] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 58.666152][ T1022] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 58.666409][ T1022] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 58.666567][ T1022] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 58.666841][ T1022] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 58.667100][ T1022] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 58.667361][ T1022] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 58.667583][ T1022] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 58.667848][ T1022] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 58.668053][ T1022] ? 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)) 
[ 58.668207][ T1022] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 58.668419][ T1022] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 58.668627][ T1022] __driver_probe_device (drivers/base/dd.c:800) 
[ 58.668843][ T1022] driver_probe_device (drivers/base/dd.c:830) 
[ 58.669054][ T1022] __device_attach_driver (drivers/base/dd.c:959) 
[ 58.669259][ T1022] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 58.669507][ T1022] bus_for_each_drv (drivers/base/bus.c:462) 
[ 58.669725][ T1022] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 58.669927][ T1022] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 58.670128][ T1022] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 58.670332][ T1022] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 58.670542][ T1022] __device_attach (drivers/base/dd.c:1030) 
[ 58.670754][ T1022] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 58.670955][ T1022] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 58.671157][ T1022] ? 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) 
[ 58.671366][ T1022] bus_probe_device (drivers/base/bus.c:537) 
[ 58.671575][ T1022] device_add (drivers/base/core.c:3672) 
[ 58.671790][ T1022] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 58.671991][ T1022] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 58.672208][ T1022] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 58.672470][ T1022] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 58.672743][ T1022] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 58.672960][ T1022] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 58.673166][ T1022] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 58.673368][ T1022] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 58.673577][ T1022] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 58.673748][ T1022] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 58.673956][ T1022] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 58.674156][ T1022] ? 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) 
[ 58.674368][ T1022] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 58.674575][ T1022] ksys_write (fs/read_write.c:731) 
[ 58.674740][ T1022] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 58.674941][ T1022] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 58.675157][ T1022] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 58.675361][ T1022] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   58.675609][ T1022] RIP: 0033:0x7fae0f31bb77
[ 58.675832][ T1022] 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
[   58.676533][ T1022] RSP: 002b:00007ffdcca03f98 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   58.676848][ T1022] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fae0f31bb77
[   58.677154][ T1022] RDX: 0000000000000007 RSI: 000055b96a29c2f0 RDI: 0000000000000001
[   58.677456][ T1022] RBP: 000055b96a29c2f0 R08: 0000000000000006 R09: 0000000000000077
[   58.677768][ T1022] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000007
[   58.678070][ T1022] R13: 00007fae0f3d7760 R14: 0000000000000007 R15: 00007fae0f3d29c0
| [   73.633509][ T1068] ------------[ cut here ]------------
| [ 73.633917][ T1068] WARNING: CPU: 0 PID: 1068 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) 
| [   73.634321][ T1068] Modules linked in: drop_monitor act_gact cls_flower sch_ingress netdevsim psample bonding sch_fq
| [   73.635116][ T1068] Tainted: [W]=WARN
[   73.635291][ T1068] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 73.635544][ T1068] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 73.635811][ T1068] 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
[   73.636512][ T1068] RSP: 0018:ffffc90000637528 EFLAGS: 00010246
[   73.636779][ T1068] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   73.637090][ T1068] RDX: 0000000000000000 RSI: ffff88800f95acd0 RDI: ffff88800df0d0f8
[   73.637390][ T1068] RBP: ffff888009ad38c0 R08: 0000000000000000 R09: fffffbfff3ec2504
[   73.637703][ T1068] R10: ffffffff9f612827 R11: ffff88800df0c5c0 R12: 0000000000000000
[   73.638009][ T1068] R13: ffff88800f95a130 R14: ffff88800f95a008 R15: ffff88800f95a000
[   73.638309][ T1068] FS:  00007fe7ab0d0740(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[   73.638660][ T1068] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   73.638925][ T1068] CR2: 0000557c0bc6e2f8 CR3: 000000000c432004 CR4: 0000000000772ef0
[   73.639227][ T1068] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   73.639528][ T1068] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   73.639983][ T1068] PKRU: 55555554
[   73.640140][ T1068] Call Trace:
[   73.640295][ T1068]  <TASK>
[ 73.640403][ T1068] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 73.640621][ T1068] ? __warn (kernel/panic.c:748) 
[ 73.640791][ T1068] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 73.641000][ T1068] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 73.641209][ T1068] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 73.641366][ T1068] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 73.641569][ T1068] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 73.641797][ T1068] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 73.642003][ T1068] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 73.642211][ T1068] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 73.642470][ T1068] ? _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) 
[ 73.642712][ T1068] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 73.642922][ T1068] register_netdevice (net/core/dev.c:11003) 
[ 73.643130][ T1068] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 73.643330][ T1068] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 73.643549][ T1068] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 73.643775][ T1068] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 73.644039][ T1068] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 73.644197][ T1068] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 73.644462][ T1068] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 73.644732][ T1068] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 73.644997][ T1068] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 73.645211][ T1068] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 73.645471][ T1068] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 73.645675][ T1068] ? 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)) 
[ 73.645843][ T1068] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 73.646058][ T1068] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 73.646268][ T1068] __driver_probe_device (drivers/base/dd.c:800) 
[ 73.646476][ T1068] driver_probe_device (drivers/base/dd.c:830) 
[ 73.646681][ T1068] __device_attach_driver (drivers/base/dd.c:959) 
[ 73.646905][ T1068] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 73.647155][ T1068] bus_for_each_drv (drivers/base/bus.c:462) 
[ 73.647361][ T1068] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 73.647562][ T1068] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 73.647774][ T1068] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 73.647978][ T1068] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 73.648186][ T1068] __device_attach (drivers/base/dd.c:1030) 
[ 73.648393][ T1068] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 73.648596][ T1068] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 73.648812][ T1068] ? 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) 
[ 73.649024][ T1068] bus_probe_device (drivers/base/bus.c:537) 
[ 73.649230][ T1068] device_add (drivers/base/core.c:3672) 
[ 73.649436][ T1068] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 73.649643][ T1068] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 73.649872][ T1068] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 73.650135][ T1068] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 73.650399][ T1068] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 73.650599][ T1068] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 73.650821][ T1068] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 73.651024][ T1068] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 73.651234][ T1068] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 73.651401][ T1068] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 73.651610][ T1068] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 73.651821][ T1068] ? 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) 
[ 73.652032][ T1068] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 73.652241][ T1068] ksys_write (fs/read_write.c:731) 
[ 73.652398][ T1068] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 73.652599][ T1068] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 73.652825][ T1068] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 73.653037][ T1068] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   73.653288][ T1068] RIP: 0033:0x7fe7ab211b77
[ 73.653495][ T1068] 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
[   73.654198][ T1068] RSP: 002b:00007ffdaa859438 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   73.654505][ T1068] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fe7ab211b77
[   73.654815][ T1068] RDX: 0000000000000007 RSI: 0000557c0bc6d2f0 RDI: 0000000000000001
[   73.655124][ T1068] RBP: 0000557c0bc6d2f0 R08: 0000000000000006 R09: 0000000000000077
[   73.655425][ T1068] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000007


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