======================================
| 0
| xx__-> [    9.840537][  T228] ------------[ cut here ]------------
| [ 9.840874][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [    9.841330][  T228] Modules linked in: netdevsim
[    9.842337][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.842771][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.843247][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[    9.844434][  T228] RSP: 0018:ffffc90000ad7520 EFLAGS: 00010246
[    9.844876][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.845417][  T228] RDX: 0000000000000000 RSI: ffff888009f92c98 RDI: ffff888005228b78
[    9.846185][  T228] RBP: ffffffffb4323440 R08: 0000000000000000 R09: fffffbfff643d83c
[    9.846729][  T228] R10: ffffffffb21ec1e7 R11: ffff888005228040 R12: 0000000000000000
[    9.847354][  T228] R13: ffff888009f92128 R14: ffff888009f92008 R15: ffff888009f92000
[    9.847889][  T228] FS:  00007f74bf5f2740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[    9.848527][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.849004][  T228] CR2: 00005574bebefb58 CR3: 000000000b9a6003 CR4: 0000000000772ef0
[    9.849554][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.850105][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.850632][  T228] PKRU: 55555554
[    9.850899][  T228] Call Trace:
[    9.851172][  T228]  <TASK>
[ 9.851294][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.851517][ T228] ? __warn (kernel/panic.c:748) 
[ 9.851699][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.851919][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.852156][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.852324][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.852537][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.852782][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.853016][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.853286][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 9.853507][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.853742][ T228] register_netdevice (net/core/dev.c:11003) 
[ 9.853994][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.854231][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.854462][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.854754][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.854920][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.855224][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.855499][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.855797][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.856041][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.856311][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.856526][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 9.856696][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.856917][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.857156][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.857380][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 9.857596][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.857825][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.858101][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.858316][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.858529][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.858766][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.858994][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.859218][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 9.859432][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.859641][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.859872][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 9.860106][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 9.860326][ T228] device_add (drivers/base/core.c:3672) 
[ 9.860542][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.860772][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.861010][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.861292][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.861568][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.861793][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.862033][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.862250][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.862471][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.862644][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.862878][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.863100][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.863324][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.863545][ T228] ksys_write (fs/read_write.c:731) 
[ 9.863722][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.863939][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.864177][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.864395][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.864657][  T228] RIP: 0033:0x7f74bf733b77
[ 9.864895][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[    9.865652][  T228] RSP: 002b:00007ffc36694718 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.866011][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f74bf733b77
[    9.866329][  T228] RDX: 0000000000000007 RSI: 00005574bebeeb50 RDI: 0000000000000001
[    9.866647][  T228] RBP: 00005574bebeeb50 R08: 0000000000000003 R09: 0000000000000000
[    9.866994][  T228] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000007
[    9.867312][  T228] R13: 00007f74bf7ef760 R14: 0000000000000007 R15: 00007f74bf7ea9c0
| [    9.920409][  T228] ------------[ cut here ]------------
| [ 9.920796][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [    9.921241][  T228] Modules linked in: netdevsim
| [    9.921917][  T228] Tainted: [W]=WARN
[    9.922112][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.922386][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.922654][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[    9.923424][  T228] RSP: 0018:ffffc90000ad7520 EFLAGS: 00010246
[    9.923690][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.924013][  T228] RDX: 0000000000000000 RSI: ffff88800b1eac98 RDI: ffff888005228b78
[    9.924345][  T228] RBP: ffffffffb4323440 R08: 0000000000000000 R09: fffffbfff643d83c
[    9.924664][  T228] R10: ffffffffb21ec1e7 R11: ffff888005228040 R12: 0000000000000000
[    9.924995][  T228] R13: ffff88800b1ea128 R14: ffff88800b1ea008 R15: ffff88800b1ea000
[    9.925317][  T228] FS:  00007f74bf5f2740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[    9.925692][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.925986][  T228] CR2: 00005574bea77288 CR3: 000000000b9a6003 CR4: 0000000000772ef0
[    9.926312][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.926631][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.926957][  T228] PKRU: 55555554
[    9.927325][  T228] Call Trace:
[    9.927491][  T228]  <TASK>
[ 9.927605][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.927860][ T228] ? __warn (kernel/panic.c:748) 
[ 9.928050][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.928272][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.928500][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.928665][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.928892][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.929139][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.929369][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.929640][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 9.929862][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.930091][ T228] register_netdevice (net/core/dev.c:11003) 
[ 9.930310][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.930539][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.930771][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.931059][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.931227][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.931509][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.931784][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.932081][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.932310][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.932579][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.932795][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 9.932957][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.933192][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.933412][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.933639][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 9.933861][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.934096][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.934371][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.934594][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.934813][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.935207][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.935441][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.935660][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 9.935891][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.936131][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.936354][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 9.936583][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 9.936802][ T228] device_add (drivers/base/core.c:3672) 
[ 9.937041][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.937254][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.937488][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.937774][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.938070][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.938287][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.938521][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.938735][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.938978][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.939149][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.939368][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.939592][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.939817][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.940065][ T228] ksys_write (fs/read_write.c:731) 
[ 9.940235][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.940453][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.940684][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.940907][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.941198][  T228] RIP: 0033:0x7f74bf733b77
[ 9.941422][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[    9.942208][  T228] RSP: 002b:00007ffc36694848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.942536][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f74bf733b77
[    9.942858][  T228] RDX: 0000000000000007 RSI: 00005574bebeeb50 RDI: 0000000000000001
[    9.943195][  T228] RBP: 00005574bebeeb50 R08: 0000000000000000 R09: 00007f74bf7a64e0
[    9.943521][  T228] R10: 00007f74bf7a63e0 R11: 0000000000000246 R12: 0000000000000007
[    9.943844][  T228] R13: 00007f74bf7ef760 R14: 0000000000000007 R15: 00007f74bf7ea9c0
| [   10.023577][  T228] ------------[ cut here ]------------
| [ 10.023925][ T228] WARNING: CPU: 1 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   10.024456][  T228] Modules linked in: netdevsim
| [   10.025159][  T228] Tainted: [W]=WARN
[   10.025327][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.025609][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.025895][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   10.026655][  T228] RSP: 0018:ffffc90000ad7520 EFLAGS: 00010246
[   10.026929][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.027266][  T228] RDX: 0000000000000000 RSI: ffff888008762c98 RDI: ffff888005228b78
[   10.027589][  T228] RBP: ffffffffb4323440 R08: 0000000000000000 R09: fffffbfff643d83c
[   10.027917][  T228] R10: ffffffffb21ec1e7 R11: ffff888005228040 R12: 0000000000000000
[   10.028250][  T228] R13: ffff888008762128 R14: ffff888008762008 R15: ffff888008762000
[   10.028575][  T228] FS:  00007f74bf5f2740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   10.028950][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.029234][  T228] CR2: 000055f2a60400b0 CR3: 000000000b9a6006 CR4: 0000000000772ef0
[   10.029564][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.029913][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.030246][  T228] PKRU: 55555554
[   10.030412][  T228] Call Trace:
[   10.030575][  T228]  <TASK>
[ 10.030689][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.030907][ T228] ? __warn (kernel/panic.c:748) 
[ 10.031110][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.031332][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.031549][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.031714][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.031928][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.032163][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.032385][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.032652][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 10.032866][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.033092][ T228] register_netdevice (net/core/dev.c:11003) 
[ 10.033307][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.033526][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.033747][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.034019][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.034179][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.034452][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.034719][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.035001][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.035219][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.035481][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.035692][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 10.035865][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.036092][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.036304][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.036522][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 10.036731][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.036941][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.037208][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.037418][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.037627][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.037837][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.038054][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.038268][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 10.038473][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.038679][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.038885][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 10.039113][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 10.039324][ T228] device_add (drivers/base/core.c:3672) 
[ 10.039533][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.039737][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.039969][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.040244][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.040511][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.040718][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.040930][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.041147][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.041358][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.041523][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.041735][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.041938][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.042168][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.042383][ T228] ksys_write (fs/read_write.c:731) 
[ 10.042541][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.042745][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.042969][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.043178][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.043430][  T228] RIP: 0033:0x7f74bf733b77
[ 10.043647][ T228] Code: Unable to access opcode bytes at 0x7f74bf733b4d.

Code starting with the faulting instruction
===========================================
[   10.043933][  T228] RSP: 002b:00007ffc36694978 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.044252][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f74bf733b77
[   10.044557][  T228] RDX: 0000000000000007 RSI: 00005574bebeeb50 RDI: 0000000000000001
[   10.044862][  T228] RBP: 00005574bebeeb50 R08: 0000000000000000 R09: 00007f74bf7a64e0
[   10.045182][  T228] R10: 00007f74bf7a63e0 R11: 0000000000000246 R12: 0000000000000007
[   10.045489][  T228] R13: 00007f74bf7ef760 R14: 0000000000000007 R15: 00007f74bf7ea9c0
| [   10.414028][  T271] ------------[ cut here ]------------
| [ 10.414487][ T271] WARNING: CPU: 2 PID: 271 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) 
| [   10.414931][  T271] Modules linked in: netdevsim
| [   10.415648][  T271] Tainted: [W]=WARN
[   10.415830][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.416118][ T271] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.416399][ T271] 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
[   10.417146][  T271] RSP: 0018:ffffc900005871e8 EFLAGS: 00010246
[   10.417422][  T271] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.417737][  T271] RDX: 0000000000000000 RSI: ffff88800904ac98 RDI: ffff88800b852dc0
[   10.418071][  T271] RBP: ffff88800adc8040 R08: 0000000000000000 R09: fffffbfff643d83c
[   10.418391][  T271] R10: ffffffffb21ec1e7 R11: ffff88800b852300 R12: 0000000000000000
[   10.418713][  T271] R13: ffff88800904a128 R14: ffff88800904a008 R15: ffff88800904a000
[   10.419046][  T271] FS:  00007fc36b0d7800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   10.419418][  T271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.419687][  T271] CR2: 00007fc36b507400 CR3: 000000000b3d2002 CR4: 0000000000772ef0
[   10.420023][  T271] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.420351][  T271] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.420695][  T271] PKRU: 55555554
[   10.420871][  T271] Call Trace:
[   10.421053][  T271]  <TASK>
[ 10.421180][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.421405][ T271] ? __warn (kernel/panic.c:748) 
[ 10.421586][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.421808][ T271] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.422052][ T271] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.422228][ T271] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.422456][ T271] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.422695][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.422925][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 10.423165][ T271] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.423449][ T271] ? _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) 
[ 10.423678][ T271] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.423907][ T271] register_netdevice (net/core/dev.c:11003) 
[ 10.424146][ T271] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.424397][ T271] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.424637][ T271] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.424922][ T271] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.425235][ T271] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 10.425530][ T271] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 10.425822][ T271] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 10.426117][ T271] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 10.426422][ T271] devlink_reload (net/devlink/dev.c:474) 
[ 10.426651][ T271] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 10.426876][ T271] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 10.427119][ T271] ? cap_capable (security/commoncap.c:131) 
[ 10.427344][ T271] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 10.427529][ T271] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 10.427756][ T271] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.428051][ T271] ? __nla_parse (lib/nlattr.c:732) 
[ 10.428282][ T271] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 10.428513][ T271] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 10.428825][ T271] ? cap_capable (security/commoncap.c:131) 
[ 10.429058][ T271] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 10.429290][ T271] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 10.429517][ T271] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 10.429739][ T271] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 10.430024][ T271] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.430316][ T271] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 10.430602][ T271] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 10.430828][ T271] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 10.431073][ T271] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 10.431301][ T271] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 10.431536][ T271] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 10.431729][ T271] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 10.431952][ T271] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 10.432192][ T271] genl_rcv (net/netlink/genetlink.c:1220) 
[ 10.432364][ T271] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 10.432594][ T271] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 10.432816][ T271] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 10.433061][ T271] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 10.433295][ T271] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 10.433511][ T271] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 10.433734][ T271] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 10.433976][ T271] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 10.434202][ T271] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 10.434432][ T271] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.434651][ T271] ? 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) 
[ 10.434876][ T271] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.435115][ T271] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.435340][ T271] ? 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) 
[ 10.435559][ T271] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.435799][ T271] __x64_sys_sendto (net/socket.c:2181) 
[ 10.436032][ T271] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.436307][ T271] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.436530][ T271] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.436806][  T271] RIP: 0033:0x7fc36b2e3a4a
[ 10.437046][ T271] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
All code
========
   0:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   4:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   b:	eb b8                	jmp    0xffffffffffffffc5
   d:	0f 1f 00             	nopl   (%rax)
  10:	f3 0f 1e fa          	endbr64
  14:	41 89 ca             	mov    %ecx,%r10d
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 15                	jne    0x38
  23:	b8 2c 00 00 00       	mov    $0x2c,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 7e                	ja     0xb0
  32:	c3                   	ret
  33:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  38:	41 54                	push   %r12
  3a:	48 83 ec 30          	sub    $0x30,%rsp
  3e:	44                   	rex.R
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 7e                	ja     0x86
   8:	c3                   	ret
   9:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   e:	41 54                	push   %r12
  10:	48 83 ec 30          	sub    $0x30,%rsp
  14:	44                   	rex.R
  15:	89                   	.byte 0x89
[   10.437776][  T271] RSP: 002b:00007ffd679c9738 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   10.438110][  T271] RAX: ffffffffffffffda RBX: 000000002d5b7b00 RCX: 00007fc36b2e3a4a
[   10.438427][  T271] RDX: 0000000000000040 RSI: 000000002d5b7b00 RDI: 0000000000000005
[   10.438740][  T271] RBP: 000000002d5b7910 R08: 00007fc36b487200 R09: 000000000000000c
[   10.439066][  T271] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   10.439379][  T271] R13: 000000002d5b7910 R14: 0000000000000000 R15: 0000000000000001
| [   10.617197][  T276] ------------[ cut here ]------------
| [ 10.617512][ T276] WARNING: CPU: 1 PID: 276 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) 
| [   10.618024][  T276] Modules linked in: netdevsim
| [   10.618563][  T276] Tainted: [W]=WARN
[   10.618709][  T276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.618947][ T276] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.619258][ T276] 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
[   10.619918][  T276] RSP: 0018:ffffc900005871e8 EFLAGS: 00010246
[   10.620186][  T276] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.620477][  T276] RDX: 0000000000000000 RSI: ffff8880081dac98 RDI: ffff8880050c8b00
[   10.620761][  T276] RBP: ffff88800adc8040 R08: 0000000000000000 R09: fffffbfff643d83c
[   10.621061][  T276] R10: ffffffffb21ec1e7 R11: ffff8880050c8040 R12: 0000000000000000
[   10.621347][  T276] R13: ffff8880081da128 R14: ffff8880081da008 R15: ffff8880081da000
[   10.621628][  T276] FS:  00007fb825cc9800(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   10.621954][  T276] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.622227][  T276] CR2: 00007f74bf5f1258 CR3: 000000000b23c003 CR4: 0000000000772ef0
[   10.622516][  T276] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.622801][  T276] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.623097][  T276] PKRU: 55555554
[   10.623243][  T276] Call Trace:
[   10.623389][  T276]  <TASK>
[ 10.623509][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.623701][ T276] ? __warn (kernel/panic.c:748) 
[ 10.623852][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.624056][ T276] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.624259][ T276] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.624406][ T276] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.624597][ T276] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.624800][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.625010][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 10.625206][ T276] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.625448][ T276] ? _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) 
[ 10.625645][ T276] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.625859][ T276] register_netdevice (net/core/dev.c:11003) 
[ 10.626082][ T276] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.626289][ T276] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.626500][ T276] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.626744][ T276] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.627007][ T276] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 10.627259][ T276] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 10.627503][ T276] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 10.627748][ T276] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 10.628014][ T276] devlink_reload (net/devlink/dev.c:474) 
[ 10.628213][ T276] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 10.628401][ T276] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 10.628598][ T276] ? cap_capable (security/commoncap.c:131) 
[ 10.628785][ T276] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 10.628943][ T276] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 10.629150][ T276] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.629389][ T276] ? __nla_parse (lib/nlattr.c:732) 
[ 10.629592][ T276] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 10.629796][ T276] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 10.630068][ T276] ? cap_capable (security/commoncap.c:131) 
[ 10.630258][ T276] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 10.630461][ T276] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 10.630653][ T276] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 10.630845][ T276] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 10.631090][ T276] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.631323][ T276] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 10.631571][ T276] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 10.631762][ T276] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 10.631954][ T276] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 10.632163][ T276] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 10.632367][ T276] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 10.632522][ T276] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 10.632715][ T276] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 10.632914][ T276] genl_rcv (net/netlink/genetlink.c:1220) 
[ 10.633071][ T276] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 10.633270][ T276] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 10.633463][ T276] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 10.633663][ T276] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 10.633858][ T276] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 10.634068][ T276] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 10.634264][ T276] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 10.634464][ T276] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 10.634658][ T276] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 10.634849][ T276] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.635054][ T276] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 10.635259][ T276] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.635454][ T276] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 10.635686][ T276] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.635887][ T276] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 10.636145][ T276] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 10.636344][ T276] __x64_sys_sendto (net/socket.c:2181) 
[ 10.636536][ T276] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.636791][ T276] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.636996][ T276] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.637232][  T276] RIP: 0033:0x7fb825ed5a4a
[ 10.637428][ T276] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
All code
========
   0:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   4:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   b:	eb b8                	jmp    0xffffffffffffffc5
   d:	0f 1f 00             	nopl   (%rax)
  10:	f3 0f 1e fa          	endbr64
  14:	41 89 ca             	mov    %ecx,%r10d
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 15                	jne    0x38
  23:	b8 2c 00 00 00       	mov    $0x2c,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 7e                	ja     0xb0
  32:	c3                   	ret
  33:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  38:	41 54                	push   %r12
  3a:	48 83 ec 30          	sub    $0x30,%rsp
  3e:	44                   	rex.R
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 7e                	ja     0x86
   8:	c3                   	ret
   9:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   e:	41 54                	push   %r12
  10:	48 83 ec 30          	sub    $0x30,%rsp
  14:	44                   	rex.R
  15:	89                   	.byte 0x89
[   10.638118][  T276] RSP: 002b:00007fffaae0ca98 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   10.638405][  T276] RAX: ffffffffffffffda RBX: 000000001ac46b00 RCX: 00007fb825ed5a4a
[   10.638689][  T276] RDX: 0000000000000040 RSI: 000000001ac46b00 RDI: 0000000000000005
[   10.638988][  T276] RBP: 000000001ac46910 R08: 00007fb826079200 R09: 000000000000000c
[   10.639268][  T276] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   10.639548][  T276] R13: 000000001ac46910 R14: 0000000000000000 R15: 0000000000000001
| [   10.813724][  T281] ------------[ cut here ]------------
| [ 10.814058][ T281] WARNING: CPU: 1 PID: 281 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) 
| [   10.814569][  T281] Modules linked in: netdevsim
| [   10.815187][  T281] Tainted: [W]=WARN
[   10.815350][  T281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.815607][ T281] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.815876][ T281] 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
[   10.816569][  T281] RSP: 0018:ffffc900005271e8 EFLAGS: 00010246
[   10.816846][  T281] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.817154][  T281] RDX: 0000000000000000 RSI: ffff888009f12c98 RDI: ffff88800287adc0
[   10.817441][  T281] RBP: ffff88800adc8040 R08: 0000000000000000 R09: fffffbfff643d83c
[   10.817740][  T281] R10: ffffffffb21ec1e7 R11: ffff88800287a300 R12: 0000000000000000
[   10.818048][  T281] R13: ffff888009f12128 R14: ffff888009f12008 R15: ffff888009f12000
[   10.818348][  T281] FS:  00007f53077b1800(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   10.818683][  T281] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.818930][  T281] CR2: 000055748caf6990 CR3: 0000000008a42006 CR4: 0000000000772ef0
[   10.819245][  T281] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.819534][  T281] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.819829][  T281] PKRU: 55555554
[   10.819991][  T281] Call Trace:
[   10.820149][  T281]  <TASK>
[ 10.820255][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.820460][ T281] ? __warn (kernel/panic.c:748) 
[ 10.820619][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.820826][ T281] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.821048][ T281] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.821207][ T281] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.821400][ T281] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.821610][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.821807][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 10.822026][ T281] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.822285][ T281] ? _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) 
[ 10.822490][ T281] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.822697][ T281] register_netdevice (net/core/dev.c:11003) 
[ 10.822905][ T281] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.823143][ T281] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.823355][ T281] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.823613][ T281] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.823877][ T281] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 10.824151][ T281] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 10.824411][ T281] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 10.824666][ T281] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 10.824931][ T281] devlink_reload (net/devlink/dev.c:474) 
[ 10.825155][ T281] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 10.825355][ T281] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 10.825559][ T281] ? cap_capable (security/commoncap.c:131) 
[ 10.825766][ T281] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 10.825929][ T281] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 10.826148][ T281] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.826402][ T281] ? __nla_parse (lib/nlattr.c:732) 
[ 10.826620][ T281] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 10.826821][ T281] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 10.827092][ T281] ? cap_capable (security/commoncap.c:131) 
[ 10.827286][ T281] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 10.827491][ T281] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 10.827695][ T281] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 10.827890][ T281] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 10.828147][ T281] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.828390][ T281] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 10.828656][ T281] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 10.828860][ T281] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 10.829065][ T281] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 10.829264][ T281] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 10.829494][ T281] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 10.829645][ T281] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 10.829845][ T281] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 10.830070][ T281] genl_rcv (net/netlink/genetlink.c:1220) 
[ 10.830221][ T281] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 10.830416][ T281] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 10.830616][ T281] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 10.830818][ T281] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 10.831043][ T281] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 10.831236][ T281] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 10.831430][ T281] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 10.831636][ T281] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 10.831833][ T281] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 10.832037][ T281] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.832237][ T281] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 10.832457][ T281] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.832667][ T281] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 10.832925][ T281] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 10.833189][ T281] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 10.833400][ T281] __x64_sys_sendto (net/socket.c:2181) 
[ 10.833605][ T281] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.833853][ T281] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.834075][ T281] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.834321][  T281] RIP: 0033:0x7f53079bda4a
[ 10.834525][ T281] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
All code
========
   0:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   4:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   b:	eb b8                	jmp    0xffffffffffffffc5
   d:	0f 1f 00             	nopl   (%rax)
  10:	f3 0f 1e fa          	endbr64
  14:	41 89 ca             	mov    %ecx,%r10d
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 15                	jne    0x38
  23:	b8 2c 00 00 00       	mov    $0x2c,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 7e                	ja     0xb0
  32:	c3                   	ret
  33:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  38:	41 54                	push   %r12
  3a:	48 83 ec 30          	sub    $0x30,%rsp
  3e:	44                   	rex.R
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 7e                	ja     0x86
   8:	c3                   	ret
   9:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   e:	41 54                	push   %r12
  10:	48 83 ec 30          	sub    $0x30,%rsp
  14:	44                   	rex.R
  15:	89                   	.byte 0x89
[   10.835224][  T281] RSP: 002b:00007ffeb3171468 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   10.835527][  T281] RAX: ffffffffffffffda RBX: 000000001736eb00 RCX: 00007f53079bda4a
[   10.835819][  T281] RDX: 0000000000000040 RSI: 000000001736eb00 RDI: 0000000000000005
[   10.836129][  T281] RBP: 000000001736e910 R08: 00007f5307b61200 R09: 000000000000000c
[   10.836420][  T281] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   10.836722][  T281] R13: 000000001736e910 R14: 0000000000000000 R15: 0000000000000001
| [   31.517921][   T11] ------------[ cut here ]------------
| [ 31.518350][ T11] WARNING: CPU: 0 PID: 11 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) 
| [   31.518709][   T11] Modules linked in: netdevsim
| [   31.519258][   T11] Tainted: [W]=WARN
[   31.519391][   T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.519606][   T11] Workqueue: netns cleanup_net
[ 31.519805][ T11] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.520037][ T11] 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
[   31.520649][   T11] RSP: 0018:ffffc900000b7620 EFLAGS: 00010246
[   31.520871][   T11] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   31.521145][   T11] RDX: 0000000000000000 RSI: ffff888002b72c98 RDI: ffff888001a82e10
[   31.521415][   T11] RBP: ffffffffb4323440 R08: 0000000000000000 R09: fffffbfff643d83c
[   31.521681][   T11] R10: ffffffffb21ec1e7 R11: ffff888001a82300 R12: 0000000000000000
[   31.521949][   T11] R13: ffff888002b72128 R14: ffff888002b72008 R15: ffff888002b72000
[   31.522224][   T11] FS:  0000000000000000(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   31.522533][   T11] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.522760][   T11] CR2: 00005574bebf7688 CR3: 000000001bd28002 CR4: 0000000000772ef0
[   31.523029][   T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   31.523301][   T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   31.523564][   T11] PKRU: 55555554
[   31.523704][   T11] Call Trace:
[   31.523988][   T11]  <TASK>
[ 31.524084][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.524263][ T11] ? __warn (kernel/panic.c:748) 
[ 31.524403][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.524589][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 31.524778][ T11] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 31.524918][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 31.525106][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 31.525308][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.525498][ T11] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 31.525733][ T11] ? _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) 
[ 31.525921][ T11] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 31.526113][ T11] register_netdevice (net/core/dev.c:11003) 
[ 31.526303][ T11] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 31.526495][ T11] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 31.526692][ T11] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 31.526926][ T11] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 31.527177][ T11] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 31.527418][ T11] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 31.527654][ T11] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 31.527884][ T11] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 31.528130][ T11] devlink_reload (net/devlink/dev.c:474) 
[ 31.528317][ T11] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 31.528500][ T11] ? devlinks_xa_find_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/devlink/core.c:343) 
[ 31.528695][ T11] devlink_pernet_pre_exit (net/devlink/core.c:288 net/devlink/devl_internal.h:114 net/devlink/core.c:513) 
[ 31.528877][ T11] ? __pfx_devlink_pernet_pre_exit (net/devlink/core.c:496) 
[ 31.529120][ T11] cleanup_net (net/core/net_namespace.c:162 net/core/net_namespace.c:632) 
[ 31.529304][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 31.529487][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:594) 
[ 31.529662][ T11] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 31.529848][ T11] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 31.530037][ T11] ? process_one_work (kernel/workqueue.c:3214) 
[ 31.530227][ T11] process_one_work (kernel/workqueue.c:3238) 
[ 31.530417][ T11] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 31.530593][ T11] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 31.530780][ T11] ? assign_work (kernel/workqueue.c:1200) 
[ 31.530969][ T11] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 31.531154][ T11] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 31.531332][ T11] kthread (kernel/kthread.c:464) 
[ 31.531466][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 31.531646][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 31.531826][ T11] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 31.532013][ T11] ? __pfx_kthread (kernel/kthread.c:413) 


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