======================================
| 0
| xx__-> [    9.736016][  T245] ------------[ cut here ]------------
| [ 9.736478][ T245] WARNING: CPU: 2 PID: 245 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) 
| [    9.737051][  T245] Modules linked in: netdevsim
[    9.737676][  T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.737965][ T245] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.738274][ T245] 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
[    9.739053][  T245] RSP: 0018:ffffc900004e7520 EFLAGS: 00010246
[    9.739342][  T245] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.739709][  T245] RDX: 0000000000000000 RSI: ffff88800adeac98 RDI: ffff888009b7d0f8
[    9.740050][  T245] RBP: ffff88800a040040 R08: 0000000000000000 R09: fffffbfff623d83c
[    9.740391][  T245] R10: ffffffffb11ec1e7 R11: ffff888009b7c5c0 R12: 0000000000000000
[    9.740747][  T245] R13: ffff88800adea128 R14: ffff88800adea008 R15: ffff88800adea000
[    9.741096][  T245] FS:  00007fea59f8d740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[    9.741489][  T245] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.741792][  T245] CR2: 00005648872022f8 CR3: 000000000a010005 CR4: 0000000000772ef0
[    9.742135][  T245] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.742479][  T245] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.742831][  T245] PKRU: 55555554
[    9.743017][  T245] Call Trace:
[    9.743200][  T245]  <TASK>
[ 9.743334][ T245] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.743573][ T245] ? __warn (kernel/panic.c:748) 
[ 9.743773][ T245] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.744006][ T245] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.744245][ T245] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.744428][ T245] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.744670][ T245] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.744920][ T245] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.745161][ T245] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.745455][ T245] ? _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) 
[ 9.745703][ T245] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.745945][ T245] register_netdevice (net/core/dev.c:11003) 
[ 9.746186][ T245] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.746430][ T245] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.746696][ T245] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.746989][ T245] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.747172][ T245] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.747471][ T245] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.747783][ T245] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.748078][ T245] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.748322][ T245] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.748623][ T245] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.748862][ T245] ? 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)) 
[ 9.749042][ T245] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.749282][ T245] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.749525][ T245] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.749773][ T245] driver_probe_device (drivers/base/dd.c:830) 
[ 9.750004][ T245] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.750241][ T245] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.750524][ T245] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.750772][ T245] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.751002][ T245] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.751249][ T245] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.751480][ T245] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.751732][ T245] __device_attach (drivers/base/dd.c:1030) 
[ 9.751963][ T245] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.752195][ T245] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.752430][ T245] ? 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) 
[ 9.752685][ T245] bus_probe_device (drivers/base/bus.c:537) 
[ 9.752926][ T245] device_add (drivers/base/core.c:3672) 
[ 9.753165][ T245] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.753398][ T245] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.753651][ T245] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.753944][ T245] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.754244][ T245] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.754473][ T245] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.754732][ T245] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.754962][ T245] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.755201][ T245] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.755392][ T245] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.755639][ T245] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.755869][ T245] ? 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) 
[ 9.756110][ T245] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.756354][ T245] ksys_write (fs/read_write.c:731) 
[ 9.756535][ T245] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.756777][ T245] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.757020][ T245] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.757254][ T245] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.757535][  T245] RIP: 0033:0x7fea5a0ceb77
[ 9.757791][ T245] 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
[    9.758560][  T245] RSP: 002b:00007ffd3661f618 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.758915][  T245] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fea5a0ceb77
[    9.759255][  T245] RDX: 0000000000000005 RSI: 00005648872012f0 RDI: 0000000000000001
[    9.759607][  T245] RBP: 00005648872012f0 R08: 0000000000000004 R09: 0000000000000077
[    9.759947][  T245] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000005
[    9.760286][  T245] R13: 00007fea5a18a760 R14: 0000000000000005 R15: 00007fea5a1859c0
| [    9.780816][  T245] ------------[ cut here ]------------
| [ 9.781082][ T245] WARNING: CPU: 2 PID: 245 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) 
| [    9.781521][  T245] Modules linked in: netdevsim
| [    9.782173][  T245] Tainted: [W]=WARN
[    9.782361][  T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.782676][ T245] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.782970][ T245] 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
[    9.783752][  T245] RSP: 0018:ffffc900004e7520 EFLAGS: 00010246
[    9.784041][  T245] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.784376][  T245] RDX: 0000000000000000 RSI: ffff88800b632c98 RDI: ffff888009b7d0f8
[    9.784726][  T245] RBP: ffff88800a040040 R08: 0000000000000000 R09: fffffbfff623d83c
[    9.785061][  T245] R10: ffffffffb11ec1e7 R11: ffff888009b7c5c0 R12: 0000000000000000
[    9.785392][  T245] R13: ffff88800b632128 R14: ffff88800b632008 R15: ffff88800b632000
[    9.785749][  T245] FS:  00007fea59f8d740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[    9.786135][  T245] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.786417][  T245] CR2: 00005648872022f8 CR3: 000000000a010005 CR4: 0000000000772ef0
[    9.786798][  T245] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.787141][  T245] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.787474][  T245] PKRU: 55555554
[    9.787662][  T245] Call Trace:
[    9.787841][  T245]  <TASK>
[ 9.787968][ T245] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.788202][ T245] ? __warn (kernel/panic.c:748) 
[ 9.788383][ T245] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.788627][ T245] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.788870][ T245] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.789052][ T245] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.789282][ T245] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.789525][ T245] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.789777][ T245] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.790066][ T245] ? _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) 
[ 9.790302][ T245] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.790539][ T245] register_netdevice (net/core/dev.c:11003) 
[ 9.790809][ T245] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.791063][ T245] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.791313][ T245] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.791609][ T245] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.791793][ T245] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.792094][ T245] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.792388][ T245] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.792691][ T245] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.792935][ T245] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.793222][ T245] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.793457][ T245] ? 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)) 
[ 9.793644][ T245] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.793890][ T245] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.794125][ T245] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.794361][ T245] driver_probe_device (drivers/base/dd.c:830) 
[ 9.794615][ T245] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.794854][ T245] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.795133][ T245] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.795368][ T245] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.795610][ T245] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.795847][ T245] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.796074][ T245] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.796312][ T245] __device_attach (drivers/base/dd.c:1030) 
[ 9.796542][ T245] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.796793][ T245] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.797024][ T245] ? 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) 
[ 9.797268][ T245] bus_probe_device (drivers/base/bus.c:537) 
[ 9.797505][ T245] device_add (drivers/base/core.c:3672) 
[ 9.797751][ T245] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.797983][ T245] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.798225][ T245] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.798522][ T245] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.798840][ T245] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.799081][ T245] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.799318][ T245] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.799549][ T245] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.799805][ T245] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.799995][ T245] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.800229][ T245] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.800457][ T245] ? 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) 
[ 9.800710][ T245] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.800967][ T245] ksys_write (fs/read_write.c:731) 
[ 9.801158][ T245] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.801388][ T245] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.801640][ T245] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.801875][ T245] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.802152][  T245] RIP: 0033:0x7fea5a0ceb77
[ 9.802391][ T245] 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
[    9.803190][  T245] RSP: 002b:00007ffd3661f618 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.803528][  T245] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fea5a0ceb77
[    9.803877][  T245] RDX: 0000000000000005 RSI: 00005648872012f0 RDI: 0000000000000001
[    9.804212][  T245] RBP: 00005648872012f0 R08: 0000000000000004 R09: 0000000000000077
[    9.804543][  T245] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000005
[    9.804887][  T245] R13: 00007fea5a18a760 R14: 0000000000000005 R15: 00007fea5a1859c0
| [    9.816457][  T245] ------------[ cut here ]------------
| [ 9.816724][ T245] WARNING: CPU: 2 PID: 245 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) 
| [    9.817168][  T245] Modules linked in: netdevsim
| [    9.817830][  T245] Tainted: [W]=WARN
[    9.818013][  T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.818297][ T245] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.819415][ T245] 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
[    9.820279][  T245] RSP: 0018:ffffc900004e7520 EFLAGS: 00010246
[    9.820669][  T245] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.821093][  T245] RDX: 0000000000000000 RSI: ffff888004e62c98 RDI: ffff888009b7d0f8
[    9.821517][  T245] RBP: ffff88800a040040 R08: 0000000000000000 R09: fffffbfff623d83c
[    9.821963][  T245] R10: ffffffffb11ec1e7 R11: ffff888009b7c5c0 R12: 0000000000000000
[    9.822379][  T245] R13: ffff888004e62128 R14: ffff888004e62008 R15: ffff888004e62000
[    9.822815][  T245] FS:  00007fea59f8d740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[    9.823286][  T245] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.823673][  T245] CR2: 00005648872022f8 CR3: 000000000a010005 CR4: 0000000000772ef0
[    9.824092][  T245] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.824510][  T245] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.825110][  T245] PKRU: 55555554
[    9.825385][  T245] Call Trace:
[    9.825664][  T245]  <TASK>
[ 9.825887][ T245] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.826201][ T245] ? __warn (kernel/panic.c:748) 
[ 9.826464][ T245] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.826796][ T245] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.827117][ T245] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.827379][ T245] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.827786][ T245] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.828127][ T245] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.828450][ T245] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.828843][ T245] ? _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) 
[ 9.829163][ T245] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.829480][ T245] register_netdevice (net/core/dev.c:11003) 
[ 9.829827][ T245] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.830153][ T245] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.830487][ T245] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.830877][ T245] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.831149][ T245] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.831531][ T245] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.831928][ T245] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.832306][ T245] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.832657][ T245] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.833242][ T245] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.833571][ T245] ? 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)) 
[ 9.833818][ T245] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.834061][ T245] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.834297][ T245] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.834532][ T245] driver_probe_device (drivers/base/dd.c:830) 
[ 9.834788][ T245] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.835024][ T245] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.835304][ T245] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.835537][ T245] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.835778][ T245] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.836016][ T245] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.836249][ T245] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.836491][ T245] __device_attach (drivers/base/dd.c:1030) 
[ 9.836744][ T245] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.836977][ T245] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.837211][ T245] ? 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) 
[ 9.837451][ T245] bus_probe_device (drivers/base/bus.c:537) 
[ 9.837713][ T245] device_add (drivers/base/core.c:3672) 
[ 9.837951][ T245] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.838186][ T245] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.838429][ T245] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.838743][ T245] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.839044][ T245] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.839274][ T245] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.839517][ T245] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.839760][ T245] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.840005][ T245] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.840191][ T245] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.840429][ T245] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.840678][ T245] ? 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) 
[ 9.840920][ T245] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.841167][ T245] ksys_write (fs/read_write.c:731) 
[ 9.841348][ T245] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.841608][ T245] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.841854][ T245] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.842090][ T245] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.842369][  T245] RIP: 0033:0x7fea5a0ceb77
[ 9.842620][ T245] 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
[    9.843385][  T245] RSP: 002b:00007ffd3661f618 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.843737][  T245] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fea5a0ceb77
[    9.844073][  T245] RDX: 0000000000000005 RSI: 00005648872012f0 RDI: 0000000000000001
[    9.844408][  T245] RBP: 00005648872012f0 R08: 0000000000000004 R09: 0000000000000077
[    9.844765][  T245] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000005
[    9.845098][  T245] R13: 00007fea5a18a760 R14: 0000000000000005 R15: 00007fea5a1859c0
| [    9.856671][  T245] ------------[ cut here ]------------
| [ 9.856922][ T245] WARNING: CPU: 2 PID: 245 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) 
| [    9.857360][  T245] Modules linked in: netdevsim
| [    9.858199][  T245] Tainted: [W]=WARN
[    9.858465][  T245] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.858851][ T245] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.859224][ T245] 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
[    9.860080][  T245] RSP: 0018:ffffc900004e7520 EFLAGS: 00010246
[    9.860454][  T245] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.860899][  T245] RDX: 0000000000000000 RSI: ffff88800b422c98 RDI: ffff888009b7d0f8
[    9.861334][  T245] RBP: ffff88800a040040 R08: 0000000000000000 R09: fffffbfff623d83c
[    9.861767][  T245] R10: ffffffffb11ec1e7 R11: ffff888009b7c5c0 R12: 0000000000000000
[    9.862189][  T245] R13: ffff88800b422128 R14: ffff88800b422008 R15: ffff88800b422000
[    9.862621][  T245] FS:  00007fea59f8d740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[    9.863091][  T245] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.863464][  T245] CR2: 00005648872022f8 CR3: 000000000a010005 CR4: 0000000000772ef0
[    9.863900][  T245] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.864324][  T245] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.864769][  T245] PKRU: 55555554
[    9.865030][  T245] Call Trace:
[    9.865295][  T245]  <TASK>
[ 9.865501][ T245] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.865835][ T245] ? __warn (kernel/panic.c:748) 
[ 9.866097][ T245] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.866415][ T245] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.866748][ T245] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.867010][ T245] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.867326][ T245] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.867666][ T245] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.867988][ T245] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.868358][ T245] ? _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) 
[ 9.868700][ T245] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.869029][ T245] register_netdevice (net/core/dev.c:11003) 
[ 9.869349][ T245] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.869693][ T245] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.870021][ T245] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.870393][ T245] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.870675][ T245] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.871063][ T245] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.871436][ T245] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.871829][ T245] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.872152][ T245] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.872520][ T245] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.872866][ T245] ? 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)) 
[ 9.873128][ T245] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.873446][ T245] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.873787][ T245] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.874101][ T245] driver_probe_device (drivers/base/dd.c:830) 
[ 9.874405][ T245] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.874650][ T245] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.874934][ T245] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.875164][ T245] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.875399][ T245] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.875646][ T245] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.875881][ T245] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.876119][ T245] __device_attach (drivers/base/dd.c:1030) 
[ 9.876351][ T245] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.876611][ T245] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.876846][ T245] ? 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) 
[ 9.877088][ T245] bus_probe_device (drivers/base/bus.c:537) 
[ 9.877321][ T245] device_add (drivers/base/core.c:3672) 
[ 9.877556][ T245] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.877802][ T245] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.878045][ T245] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.878336][ T245] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.878651][ T245] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.878881][ T245] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.879119][ T245] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.879349][ T245] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.879597][ T245] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.879783][ T245] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.880023][ T245] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.880253][ T245] ? 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) 
[ 9.880493][ T245] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.880759][ T245] ksys_write (fs/read_write.c:731) 
[ 9.880944][ T245] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.881190][ T245] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.881433][ T245] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.881685][ T245] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.881969][  T245] RIP: 0033:0x7fea5a0ceb77
[ 9.882203][ T245] 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
[    9.882976][  T245] RSP: 002b:00007ffd3661f618 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.883315][  T245] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fea5a0ceb77
[    9.883665][  T245] RDX: 0000000000000005 RSI: 00005648872012f0 RDI: 0000000000000001
[    9.883995][  T245] RBP: 00005648872012f0 R08: 0000000000000004 R09: 0000000000000077
[    9.884330][  T245] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000005


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