======================================
| 0
| xx__-> [   10.096194][  T243] ------------[ cut here ]------------
| [ 10.096613][ T243] WARNING: CPU: 3 PID: 243 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) 
| [   10.097158][  T243] Modules linked in: netdevsim
[   10.097693][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.097955][ T243] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.098250][ T243] 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
[   10.099004][  T243] RSP: 0018:ffffc90000767520 EFLAGS: 00010246
[   10.099306][  T243] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.099616][  T243] RDX: 0000000000000000 RSI: ffff8880095f2c98 RDI: ffff888004da8b78
[   10.099923][  T243] RBP: ffff88800a258040 R08: 0000000000000000 R09: fffffbfff71fd83c
[   10.100241][  T243] R10: ffffffffb8fec1e7 R11: ffff888004da8040 R12: 0000000000000000
[   10.100552][  T243] R13: ffff8880095f2128 R14: ffff8880095f2008 R15: ffff8880095f2000
[   10.100862][  T243] FS:  00007fa0fc793740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   10.101231][  T243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.101491][  T243] CR2: 000055ce8ed3a2f8 CR3: 000000000b47a006 CR4: 0000000000772ef0
[   10.101799][  T243] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.102104][  T243] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.102490][  T243] PKRU: 55555554
[   10.102653][  T243] Call Trace:
[   10.102813][  T243]  <TASK>
[ 10.102924][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.103148][ T243] ? __warn (kernel/panic.c:748) 
[ 10.103309][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.103521][ T243] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.103734][ T243] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.103891][ T243] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.104097][ T243] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.104378][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.104602][ T243] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.104861][ T243] ? _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) 
[ 10.105074][ T243] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.105299][ T243] register_netdevice (net/core/dev.c:11003) 
[ 10.105526][ T243] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.105746][ T243] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.105968][ T243] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.106239][ T243] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.106397][ T243] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.106669][ T243] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.106936][ T243] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.107211][ T243] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.107432][ T243] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.107693][ T243] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.107904][ T243] ? 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)) 
[ 10.108066][ T243] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.108304][ T243] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.108521][ T243] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.108730][ T243] driver_probe_device (drivers/base/dd.c:830) 
[ 10.108939][ T243] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.109154][ T243] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.109405][ T243] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.109614][ T243] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.109817][ T243] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.110022][ T243] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.110239][ T243] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.110456][ T243] __device_attach (drivers/base/dd.c:1030) 
[ 10.110663][ T243] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.110871][ T243] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.111083][ T243] ? 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) 
[ 10.111314][ T243] bus_probe_device (drivers/base/bus.c:537) 
[ 10.111520][ T243] device_add (drivers/base/core.c:3672) 
[ 10.111729][ T243] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.111933][ T243] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.112170][ T243] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.112434][ T243] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.112699][ T243] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.112907][ T243] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.113117][ T243] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.113333][ T243] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.113542][ T243] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.113705][ T243] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.113914][ T243] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.114115][ T243] ? 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) 
[ 10.114347][ T243] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.114563][ T243] ksys_write (fs/read_write.c:731) 
[ 10.114728][ T243] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.114931][ T243] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.115155][ T243] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.115362][ T243] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.115613][  T243] RIP: 0033:0x7fa0fc8d4b77
[ 10.115828][ T243] 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
[   10.116560][  T243] RSP: 002b:00007ffc8d1819e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.116870][  T243] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fa0fc8d4b77
[   10.117192][  T243] RDX: 0000000000000005 RSI: 000055ce8ed392f0 RDI: 0000000000000001
[   10.117498][  T243] RBP: 000055ce8ed392f0 R08: 0000000000000004 R09: 0000000000000077
[   10.117805][  T243] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000005
[   10.118135][  T243] R13: 00007fa0fc990760 R14: 0000000000000005 R15: 00007fa0fc98b9c0
| [   10.132908][  T243] ------------[ cut here ]------------
| [ 10.133163][ T243] WARNING: CPU: 3 PID: 243 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) 
| [   10.133570][  T243] Modules linked in: netdevsim
| [   10.134245][  T243] Tainted: [W]=WARN
[   10.134406][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.134660][ T243] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.134917][ T243] 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
[   10.135637][  T243] RSP: 0018:ffffc90000767520 EFLAGS: 00010246
[   10.135897][  T243] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.136210][  T243] RDX: 0000000000000000 RSI: ffff888001fd2c98 RDI: ffff888004da8b78
[   10.136514][  T243] RBP: ffff88800a258040 R08: 0000000000000000 R09: fffffbfff71fd83c
[   10.137034][  T243] R10: ffffffffb8fec1e7 R11: ffff888004da8040 R12: 0000000000000000
[   10.137360][  T243] R13: ffff888001fd2128 R14: ffff888001fd2008 R15: ffff888001fd2000
[   10.137664][  T243] FS:  00007fa0fc793740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   10.138022][  T243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.138294][  T243] CR2: 000055ce8ed3a2f8 CR3: 000000000b47a006 CR4: 0000000000772ef0
[   10.138600][  T243] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.138900][  T243] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.139212][  T243] PKRU: 55555554
[   10.139366][  T243] Call Trace:
[   10.139526][  T243]  <TASK>
[ 10.139634][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.139840][ T243] ? __warn (kernel/panic.c:748) 
[ 10.140001][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.140220][ T243] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.140434][ T243] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.140593][ T243] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.140797][ T243] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.141020][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.141258][ T243] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.141529][ T243] ? _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) 
[ 10.141743][ T243] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.141955][ T243] register_netdevice (net/core/dev.c:11003) 
[ 10.142185][ T243] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.142404][ T243] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.142627][ T243] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.142890][ T243] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.143049][ T243] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.143329][ T243] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.143593][ T243] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.143857][ T243] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.144079][ T243] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.144345][ T243] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.144557][ T243] ? 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)) 
[ 10.144712][ T243] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.144922][ T243] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.145153][ T243] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.145362][ T243] driver_probe_device (drivers/base/dd.c:830) 
[ 10.145569][ T243] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.145774][ T243] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.146024][ T243] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.146248][ T243] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.146449][ T243] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.146663][ T243] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.146867][ T243] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.147082][ T243] __device_attach (drivers/base/dd.c:1030) 
[ 10.147297][ T243] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.147502][ T243] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.147709][ T243] ? 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) 
[ 10.147923][ T243] bus_probe_device (drivers/base/bus.c:537) 
[ 10.148149][ T243] device_add (drivers/base/core.c:3672) 
[ 10.148360][ T243] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.148573][ T243] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.148791][ T243] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.149055][ T243] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.149354][ T243] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.149559][ T243] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.149773][ T243] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.149974][ T243] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.150200][ T243] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.150364][ T243] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.150575][ T243] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.150774][ T243] ? 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) 
[ 10.150986][ T243] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.151210][ T243] ksys_write (fs/read_write.c:731) 
[ 10.151368][ T243] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.151573][ T243] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.151789][ T243] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.151996][ T243] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.152260][  T243] RIP: 0033:0x7fa0fc8d4b77
[ 10.152471][ T243] 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
[   10.153215][  T243] RSP: 002b:00007ffc8d1819e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.153524][  T243] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fa0fc8d4b77
[   10.153828][  T243] RDX: 0000000000000005 RSI: 000055ce8ed392f0 RDI: 0000000000000001
[   10.154156][  T243] RBP: 000055ce8ed392f0 R08: 0000000000000004 R09: 0000000000000077
[   10.154464][  T243] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000005
[   10.154839][  T243] R13: 00007fa0fc990760 R14: 0000000000000005 R15: 00007fa0fc98b9c0
| [   10.166327][  T243] ------------[ cut here ]------------
| [ 10.166567][ T243] WARNING: CPU: 3 PID: 243 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) 
| [   10.166982][  T243] Modules linked in: netdevsim
| [   10.168541][  T243] Tainted: [W]=WARN
[   10.168718][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.168989][ T243] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.169348][ T243] 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
[   10.170087][  T243] RSP: 0018:ffffc90000767520 EFLAGS: 00010246
[   10.170461][  T243] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.170794][  T243] RDX: 0000000000000000 RSI: ffff88800aa2ac98 RDI: ffff888004da8b78
[   10.171114][  T243] RBP: ffff88800a258040 R08: 0000000000000000 R09: fffffbfff71fd83c
[   10.171524][  T243] R10: ffffffffb8fec1e7 R11: ffff888004da8040 R12: 0000000000000000
[   10.171833][  T243] R13: ffff88800aa2a128 R14: ffff88800aa2a008 R15: ffff88800aa2a000
[   10.172240][  T243] FS:  00007fa0fc793740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   10.172612][  T243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.172879][  T243] CR2: 000055ce8ed3a2f8 CR3: 000000000b47a006 CR4: 0000000000772ef0
[   10.173305][  T243] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.173617][  T243] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.173923][  T243] PKRU: 55555554
[   10.174089][  T243] Call Trace:
[   10.174349][  T243]  <TASK>
[ 10.174457][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.174665][ T243] ? __warn (kernel/panic.c:748) 
[ 10.174823][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.175046][ T243] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.175359][ T243] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.175517][ T243] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.175722][ T243] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.175945][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.176270][ T243] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.176533][ T243] ? _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) 
[ 10.176752][ T243] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.176974][ T243] register_netdevice (net/core/dev.c:11003) 
[ 10.177292][ T243] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.177517][ T243] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.177752][ T243] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.178035][ T243] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.178312][ T243] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.178595][ T243] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.178857][ T243] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.179222][ T243] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.179446][ T243] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.179719][ T243] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.179939][ T243] ? 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)) 
[ 10.180096][ T243] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.180415][ T243] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.180634][ T243] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.180844][ T243] driver_probe_device (drivers/base/dd.c:830) 
[ 10.181053][ T243] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.181363][ T243] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.181643][ T243] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.181855][ T243] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.182068][ T243] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.182382][ T243] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.182598][ T243] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.182807][ T243] __device_attach (drivers/base/dd.c:1030) 
[ 10.183023][ T243] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.183336][ T243] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.183549][ T243] ? 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) 
[ 10.183760][ T243] bus_probe_device (drivers/base/bus.c:537) 
[ 10.183984][ T243] device_add (drivers/base/core.c:3672) 
[ 10.184288][ T243] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.184502][ T243] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.184716][ T243] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.184986][ T243] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.185359][ T243] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.185565][ T243] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.185778][ T243] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.185988][ T243] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.186305][ T243] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.186468][ T243] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.186683][ T243] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.186887][ T243] ? 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) 
[ 10.187115][ T243] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.187415][ T243] ksys_write (fs/read_write.c:731) 
[ 10.187571][ T243] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.187783][ T243] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.188002][ T243] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.188317][ T243] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.188588][  T243] RIP: 0033:0x7fa0fc8d4b77
[ 10.188794][ T243] 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
[   10.189899][  T243] RSP: 002b:00007ffc8d1819e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.190339][  T243] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fa0fc8d4b77
[   10.190654][  T243] RDX: 0000000000000005 RSI: 000055ce8ed392f0 RDI: 0000000000000001
[   10.190955][  T243] RBP: 000055ce8ed392f0 R08: 0000000000000004 R09: 0000000000000077
[   10.191368][  T243] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000005
[   10.191667][  T243] R13: 00007fa0fc990760 R14: 0000000000000005 R15: 00007fa0fc98b9c0
| [   10.203014][  T243] ------------[ cut here ]------------
| [ 10.203285][ T243] WARNING: CPU: 1 PID: 243 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) 
| [   10.203732][  T243] Modules linked in: netdevsim
| [   10.204334][  T243] Tainted: [W]=WARN
[   10.204496][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.204758][ T243] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.205016][ T243] 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
[   10.205741][  T243] RSP: 0000:ffffc90000767520 EFLAGS: 00010246
[   10.205996][  T243] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.206313][  T243] RDX: 0000000000000000 RSI: ffff88800914ac98 RDI: ffff888004da8b78
[   10.206616][  T243] RBP: ffff88800a258040 R08: 0000000000000000 R09: fffffbfff71fd83c
[   10.206918][  T243] R10: ffffffffb8fec1e7 R11: ffff888004da8040 R12: 0000000000000000
[   10.207241][  T243] R13: ffff88800914a128 R14: ffff88800914a008 R15: ffff88800914a000
[   10.207554][  T243] FS:  00007fa0fc793740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   10.207904][  T243] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.208182][  T243] CR2: 0000557b1104bbd0 CR3: 000000000b47a004 CR4: 0000000000772ef0
[   10.208481][  T243] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.208779][  T243] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.209081][  T243] PKRU: 55555554
[   10.209241][  T243] Call Trace:
[   10.209393][  T243]  <TASK>
[ 10.209496][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.209699][ T243] ? __warn (kernel/panic.c:748) 
[ 10.209855][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.210063][ T243] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.210298][ T243] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.210455][ T243] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.210661][ T243] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.210877][ T243] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.211090][ T243] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.211370][ T243] ? _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) 
[ 10.211583][ T243] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.211800][ T243] register_netdevice (net/core/dev.c:11003) 
[ 10.212021][ T243] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.212244][ T243] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.212466][ T243] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.212725][ T243] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.212881][ T243] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.213162][ T243] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.213422][ T243] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.213688][ T243] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.213901][ T243] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.214170][ T243] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.214385][ T243] ? 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)) 
[ 10.214538][ T243] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.214747][ T243] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.214960][ T243] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.215188][ T243] driver_probe_device (drivers/base/dd.c:830) 
[ 10.215391][ T243] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.215596][ T243] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.215850][ T243] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.216060][ T243] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.216268][ T243] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.216475][ T243] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.216675][ T243] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.216883][ T243] __device_attach (drivers/base/dd.c:1030) 
[ 10.217093][ T243] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.217302][ T243] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.217505][ T243] ? 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) 
[ 10.217715][ T243] bus_probe_device (drivers/base/bus.c:537) 
[ 10.217924][ T243] device_add (drivers/base/core.c:3672) 
[ 10.218151][ T243] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.218353][ T243] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.218571][ T243] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.218831][ T243] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.219094][ T243] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.219315][ T243] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.219529][ T243] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.219729][ T243] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.219939][ T243] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.220100][ T243] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.220317][ T243] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.220516][ T243] ? 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) 
[ 10.220725][ T243] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.220936][ T243] ksys_write (fs/read_write.c:731) 
[ 10.221100][ T243] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.221312][ T243] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.221525][ T243] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.221730][ T243] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.221981][  T243] RIP: 0033:0x7fa0fc8d4b77
[ 10.222201][ T243] 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
[   10.222906][  T243] RSP: 002b:00007ffc8d1819e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.223230][  T243] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fa0fc8d4b77
[   10.223529][  T243] RDX: 0000000000000005 RSI: 000055ce8ed392f0 RDI: 0000000000000001
[   10.223836][  T243] RBP: 000055ce8ed392f0 R08: 0000000000000004 R09: 0000000000000077
[   10.224140][  T243] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000005


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