======================================
| 0
| xx__-> [   11.357550][  T228] ------------[ cut here ]------------
| [ 11.358281][ T228] WARNING: CPU: 2 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) 
| [   11.358776][  T228] Modules linked in: netdevsim
[   11.359504][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.359803][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.360129][ 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
[   11.360987][  T228] RSP: 0018:ffffc90000b27520 EFLAGS: 00010246
[   11.361315][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.361675][  T228] RDX: 0000000000000000 RSI: ffff888009342c98 RDI: ffff8880060b8b78
[   11.362087][  T228] RBP: ffffffff93d23440 R08: 0000000000000000 R09: fffffbfff237d83c
[   11.362707][  T228] R10: ffffffff91bec1e7 R11: ffff8880060b8040 R12: 0000000000000000
[   11.363339][  T228] R13: ffff888009342128 R14: ffff888009342008 R15: ffff888009342000
[   11.363755][  T228] FS:  00007f77f5815740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   11.364230][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.364617][  T228] CR2: 00005568505aeb58 CR3: 00000000093c8003 CR4: 0000000000772ef0
[   11.364968][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.365360][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.365714][  T228] PKRU: 55555554
[   11.365902][  T228] Call Trace:
[   11.366100][  T228]  <TASK>
[ 11.366245][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.366501][ T228] ? __warn (kernel/panic.c:748) 
[ 11.366688][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.366932][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.367264][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.367526][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.367764][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.368014][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.368274][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 11.368587][ 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) 
[ 11.368829][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.369085][ T228] register_netdevice (net/core/dev.c:11003) 
[ 11.369345][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 11.369598][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.369848][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.370164][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 11.370365][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.370682][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 11.370979][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 11.371366][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 11.371618][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 11.371916][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 11.372171][ 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)) 
[ 11.372372][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 11.372626][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 11.372870][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 11.373124][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 11.373427][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 11.373753][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 11.374059][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 11.374318][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 11.374565][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 11.374818][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 11.375079][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 11.375413][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 11.375655][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 11.375892][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 11.376187][ 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) 
[ 11.376561][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 11.376819][ T228] device_add (drivers/base/core.c:3672) 
[ 11.377083][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 11.377349][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 11.377605][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 11.377921][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 11.378247][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 11.378507][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 11.378756][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 11.379006][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 11.379267][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 11.379475][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 11.379720][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 11.379972][ 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) 
[ 11.380246][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 11.380528][ T228] ksys_write (fs/read_write.c:731) 
[ 11.380715][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 11.380953][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 11.381228][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.381485][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.381781][  T228] RIP: 0033:0x7f77f5956b77
[ 11.382051][ 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
[   11.382862][  T228] RSP: 002b:00007fff50f80b88 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   11.383279][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f77f5956b77
[   11.383655][  T228] RDX: 0000000000000007 RSI: 00005568505adb50 RDI: 0000000000000001
[   11.383997][  T228] RBP: 00005568505adb50 R08: 0000000000000003 R09: 0000000000000000
[   11.384401][  T228] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000007
[   11.384756][  T228] R13: 00007f77f5a12760 R14: 0000000000000007 R15: 00007f77f5a0d9c0
| [   11.479213][  T228] ------------[ cut here ]------------
| [ 11.479770][ T228] WARNING: CPU: 2 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) 
| [   11.480273][  T228] Modules linked in: netdevsim
| [   11.480996][  T228] Tainted: [W]=WARN
[   11.481336][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.481646][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.481944][ 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
[   11.482763][  T228] RSP: 0018:ffffc90000b27520 EFLAGS: 00010246
[   11.483096][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.483448][  T228] RDX: 0000000000000000 RSI: ffff88800ab22c98 RDI: ffff8880060b8b78
[   11.483801][  T228] RBP: ffffffff93d23440 R08: 0000000000000000 R09: fffffbfff237d83c
[   11.484153][  T228] R10: ffffffff91bec1e7 R11: ffff8880060b8040 R12: 0000000000000000
[   11.484550][  T228] R13: ffff88800ab22128 R14: ffff88800ab22008 R15: ffff88800ab22000
[   11.484911][  T228] FS:  00007f77f5815740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   11.485345][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.485654][  T228] CR2: 00007f77f59c9733 CR3: 00000000093c8004 CR4: 0000000000772ef0
[   11.486035][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.486406][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.486789][  T228] PKRU: 55555554
[   11.486983][  T228] Call Trace:
[   11.487188][  T228]  <TASK>
[ 11.487338][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.487601][ T228] ? __warn (kernel/panic.c:748) 
[ 11.487803][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.488067][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.488337][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.488533][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.488783][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.489038][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.489288][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 11.489628][ 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) 
[ 11.489890][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.490142][ T228] register_netdevice (net/core/dev.c:11003) 
[ 11.490396][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 11.490661][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.490943][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.491261][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 11.491460][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.491763][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 11.492072][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 11.492402][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 11.492676][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 11.493001][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 11.493274][ 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)) 
[ 11.493514][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 11.493773][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 11.494031][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 11.494297][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 11.494575][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 11.494825][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 11.495137][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 11.495402][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 11.495649][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 11.495902][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 11.496152][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 11.496417][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 11.496673][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 11.496934][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 11.497186][ 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) 
[ 11.497459][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 11.497698][ T228] device_add (drivers/base/core.c:3672) 
[ 11.497957][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 11.498208][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 11.498475][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 11.498780][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 11.499095][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 11.499360][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 11.499615][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 11.499861][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 11.500112][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 11.500323][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 11.500591][ T228] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 11.500885][ T228] ksys_write (fs/read_write.c:731) 
[ 11.501091][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 11.501378][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.501650][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.501957][  T228] RIP: 0033:0x7f77f5956b77
[ 11.502224][ 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
[   11.503109][  T228] RSP: 002b:00007fff50f80cb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   11.503500][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f77f5956b77
[   11.503897][  T228] RDX: 0000000000000007 RSI: 00005568505adb50 RDI: 0000000000000001
[   11.504275][  T228] RBP: 00005568505adb50 R08: 0000000000000000 R09: 00007f77f59c94e0
[   11.504645][  T228] R10: 00007f77f59c93e0 R11: 0000000000000246 R12: 0000000000000007
[   11.505016][  T228] R13: 00007f77f5a12760 R14: 0000000000000007 R15: 00007f77f5a0d9c0
| [   11.590834][  T228] ------------[ cut here ]------------
| [ 11.591381][ 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) 
| [   11.592242][  T228] Modules linked in: netdevsim
| [   11.593475][  T228] Tainted: [W]=WARN
[   11.593760][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.594200][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.594683][ 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
[   11.595981][  T228] RSP: 0018:ffffc90000b27520 EFLAGS: 00010246
[   11.596469][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.597040][  T228] RDX: 0000000000000000 RSI: ffff888009922c98 RDI: ffff8880060b8b78
[   11.597612][  T228] RBP: ffffffff93d23440 R08: 0000000000000000 R09: fffffbfff237d83c
[   11.598165][  T228] R10: ffffffff91bec1e7 R11: ffff8880060b8040 R12: 0000000000000000
[   11.598748][  T228] R13: ffff888009922128 R14: ffff888009922008 R15: ffff888009922000
[   11.599327][  T228] FS:  00007f77f5815740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   11.599981][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.600463][  T228] CR2: 00007f4980a98e70 CR3: 00000000093c8003 CR4: 0000000000772ef0
[   11.601027][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.601594][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.602208][  T228] PKRU: 55555554
[   11.602515][  T228] Call Trace:
[   11.602792][  T228]  <TASK>
[ 11.602984][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.603367][ T228] ? __warn (kernel/panic.c:748) 
[ 11.603660][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.604046][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.604461][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.604741][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.605105][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.605506][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.605888][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 11.606377][ 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) 
[ 11.606759][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.607150][ T228] register_netdevice (net/core/dev.c:11003) 
[ 11.607542][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 11.607928][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.608338][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.608805][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 11.609092][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.609541][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 11.610006][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 11.610491][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 11.610875][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 11.611351][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 11.611738][ 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)) 
[ 11.612018][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 11.612437][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 11.612836][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 11.613216][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 11.613622][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 11.613998][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 11.614490][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 11.614864][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 11.615189][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 11.615563][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 11.615933][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 11.616282][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 11.616680][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 11.617066][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 11.617469][ 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) 
[ 11.617873][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 11.618247][ T228] device_add (drivers/base/core.c:3672) 
[ 11.618638][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 11.618996][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 11.619402][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 11.619889][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 11.620383][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 11.620745][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 11.621121][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 11.621495][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 11.621860][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 11.622159][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 11.622559][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 11.622935][ 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) 
[ 11.623328][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 11.623698][ T228] ksys_write (fs/read_write.c:731) 
[ 11.623972][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 11.624339][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 11.624722][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.625096][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.625550][  T228] RIP: 0033:0x7f77f5956b77
[ 11.625922][ T228] Code: Unable to access opcode bytes at 0x7f77f5956b4d.

Code starting with the faulting instruction
===========================================
[   11.626465][  T228] RSP: 002b:00007fff50f80de8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   11.627022][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f77f5956b77
[   11.627592][  T228] RDX: 0000000000000007 RSI: 00005568505adb50 RDI: 0000000000000001
[   11.628134][  T228] RBP: 00005568505adb50 R08: 0000000000000000 R09: 00007f77f59c94e0
[   11.628679][  T228] R10: 00007f77f59c93e0 R11: 0000000000000246 R12: 0000000000000007
[   11.629205][  T228] R13: 00007f77f5a12760 R14: 0000000000000007 R15: 00007f77f5a0d9c0
| [   12.055713][  T271] ------------[ cut here ]------------
| [ 12.056066][ T271] WARNING: CPU: 3 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) 
| [   12.056685][  T271] Modules linked in: netdevsim
| [   12.057267][  T271] Tainted: [W]=WARN
[   12.057432][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.057679][ T271] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.057934][ 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
[   12.058652][  T271] RSP: 0018:ffffc900007271e8 EFLAGS: 00010246
[   12.058903][  T271] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   12.059208][  T271] RDX: 0000000000000000 RSI: ffff88800a1aac98 RDI: ffff8880060badc0
[   12.059607][  T271] RBP: ffff88800aab0040 R08: 0000000000000000 R09: fffffbfff237d83c
[   12.059929][  T271] R10: ffffffff91bec1e7 R11: ffff8880060ba300 R12: 0000000000000000
[   12.060235][  T271] R13: ffff88800a1aa128 R14: ffff88800a1aa008 R15: ffff88800a1aa000
[   12.060556][  T271] FS:  00007ff74b368800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   12.060895][  T271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.061142][  T271] CR2: 00007ff74b4a7440 CR3: 000000000a236003 CR4: 0000000000772ef0
[   12.061465][  T271] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   12.061760][  T271] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   12.062053][  T271] PKRU: 55555554
[   12.062215][  T271] Call Trace:
[   12.062379][  T271]  <TASK>
[ 12.062486][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.062693][ T271] ? __warn (kernel/panic.c:748) 
[ 12.062854][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.063059][ T271] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 12.063285][ T271] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 12.063458][ T271] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 12.063662][ T271] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 12.063886][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.064094][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 12.064328][ T271] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 12.064590][ 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) 
[ 12.064829][ T271] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 12.065036][ T271] register_netdevice (net/core/dev.c:11003) 
[ 12.065260][ T271] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 12.065488][ T271] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 12.065710][ T271] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 12.065973][ T271] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 12.066252][ T271] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 12.066531][ T271] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 12.066801][ T271] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 12.067051][ T271] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 12.067333][ T271] devlink_reload (net/devlink/dev.c:474) 
[ 12.067539][ T271] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 12.067737][ T271] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 12.067940][ T271] ? cap_capable (security/commoncap.c:131) 
[ 12.068131][ 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) 
[ 12.068321][ T271] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 12.068522][ T271] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 12.068765][ T271] ? __nla_parse (lib/nlattr.c:732) 
[ 12.068973][ T271] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 12.069170][ T271] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 12.069452][ T271] ? cap_capable (security/commoncap.c:131) 
[ 12.069649][ T271] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 12.069853][ T271] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 12.070048][ T271] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 12.070279][ T271] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 12.070538][ T271] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 12.070777][ T271] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 12.071027][ T271] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 12.071236][ T271] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 12.071446][ T271] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 12.071652][ T271] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 12.071865][ T271] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 12.072020][ T271] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 12.072220][ T271] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 12.072431][ T271] genl_rcv (net/netlink/genetlink.c:1220) 
[ 12.072581][ T271] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 12.072781][ T271] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 12.072978][ T271] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 12.073187][ T271] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 12.073413][ T271] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 12.073608][ T271] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 12.073805][ T271] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 12.074008][ T271] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 12.074210][ T271] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 12.074415][ T271] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 12.074611][ T271] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 12.074818][ T271] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 12.075029][ T271] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 12.075271][ T271] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 12.075485][ T271] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 12.075734][ T271] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 12.075938][ T271] __x64_sys_sendto (net/socket.c:2181) 
[ 12.076136][ T271] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 12.076392][ T271] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 12.076589][ T271] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   12.076835][  T271] RIP: 0033:0x7ff74b574a4a
[ 12.077038][ 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
[   12.077732][  T271] RSP: 002b:00007ffcb19f6498 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   12.078025][  T271] RAX: ffffffffffffffda RBX: 00000000123afb00 RCX: 00007ff74b574a4a
[   12.078321][  T271] RDX: 0000000000000040 RSI: 00000000123afb00 RDI: 0000000000000005
[   12.078608][  T271] RBP: 00000000123af910 R08: 00007ff74b718200 R09: 000000000000000c
[   12.078894][  T271] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   12.079183][  T271] R13: 00000000123af910 R14: 0000000000000000 R15: 0000000000000001
| [   12.267822][  T276] ------------[ cut here ]------------
| [ 12.268226][ T276] WARNING: CPU: 3 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) 
| [   12.268662][  T276] Modules linked in: netdevsim
| [   12.269474][  T276] Tainted: [W]=WARN
[   12.269643][  T276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.269908][ T276] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.270211][ 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
[   12.270936][  T276] RSP: 0018:ffffc900005e71e8 EFLAGS: 00010246
[   12.271198][  T276] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   12.271519][  T276] RDX: 0000000000000000 RSI: ffff888002152c98 RDI: ffff88800a890b00
[   12.271831][  T276] RBP: ffff88800aab0040 R08: 0000000000000000 R09: fffffbfff237d83c
[   12.272140][  T276] R10: ffffffff91bec1e7 R11: ffff88800a890040 R12: 0000000000000000
[   12.272462][  T276] R13: ffff888002152128 R14: ffff888002152008 R15: ffff888002152000
[   12.272777][  T276] FS:  00007f87023e7800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   12.273343][  T276] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.273740][  T276] CR2: 00007f8702526440 CR3: 0000000009838001 CR4: 0000000000772ef0
[   12.274206][  T276] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   12.274712][  T276] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   12.275225][  T276] PKRU: 55555554
[   12.275489][  T276] Call Trace:
[   12.275744][  T276]  <TASK>
[ 12.275919][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.276285][ T276] ? __warn (kernel/panic.c:748) 
[ 12.276562][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.276905][ T276] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 12.277246][ T276] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 12.277525][ T276] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 12.277849][ T276] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 12.278221][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.278584][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 12.279023][ T276] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 12.279366][ 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) 
[ 12.279569][ T276] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 12.279783][ T276] register_netdevice (net/core/dev.c:11003) 
[ 12.279985][ T276] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 12.280196][ T276] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 12.280431][ T276] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 12.280682][ T276] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 12.280938][ T276] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 12.281213][ T276] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 12.281480][ T276] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 12.281726][ T276] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 12.281980][ T276] devlink_reload (net/devlink/dev.c:474) 
[ 12.282182][ T276] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 12.282398][ T276] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 12.282602][ T276] ? cap_capable (security/commoncap.c:131) 
[ 12.282808][ 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) 
[ 12.282964][ T276] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 12.283162][ T276] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 12.283513][ T276] ? __nla_parse (lib/nlattr.c:732) 
[ 12.283722][ T276] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 12.283919][ T276] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 12.284185][ T276] ? cap_capable (security/commoncap.c:131) 
[ 12.284408][ T276] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 12.284611][ T276] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 12.284808][ T276] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 12.285000][ T276] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 12.285254][ T276] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 12.285505][ T276] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 12.285768][ T276] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 12.285965][ T276] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 12.286156][ T276] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 12.286374][ T276] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 12.286583][ T276] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 12.286731][ T276] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 12.286937][ T276] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 12.287148][ T276] genl_rcv (net/netlink/genetlink.c:1220) 
[ 12.287326][ T276] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 12.287527][ T276] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 12.287724][ T276] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 12.287927][ T276] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 12.288128][ T276] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 12.288351][ T276] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 12.288555][ T276] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 12.288761][ T276] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 12.288961][ T276] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 12.289149][ T276] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 12.289365][ T276] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 12.289574][ T276] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 12.289774][ T276] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 12.290091][ T276] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 12.290317][ T276] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 12.290565][ T276] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 12.290764][ T276] __x64_sys_sendto (net/socket.c:2181) 
[ 12.291000][ T276] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 12.291270][ T276] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 12.291481][ T276] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   12.291732][  T276] RIP: 0033:0x7f87025f3a4a
[ 12.291937][ 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
[   12.292651][  T276] RSP: 002b:00007ffe79232688 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   12.292948][  T276] RAX: ffffffffffffffda RBX: 0000000002170b00 RCX: 00007f87025f3a4a
[   12.293259][  T276] RDX: 0000000000000040 RSI: 0000000002170b00 RDI: 0000000000000005
[   12.293561][  T276] RBP: 0000000002170910 R08: 00007f8702797200 R09: 000000000000000c
[   12.293853][  T276] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   12.294144][  T276] R13: 0000000002170910 R14: 0000000000000000 R15: 0000000000000001
| [   12.485330][  T281] ------------[ cut here ]------------
| [ 12.485839][ T281] WARNING: CPU: 3 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) 
| [   12.486519][  T281] Modules linked in: netdevsim
| [   12.487097][  T281] Tainted: [W]=WARN
[   12.487278][  T281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 12.487605][ T281] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.487924][ 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
[   12.488725][  T281] RSP: 0018:ffffc900004d71e8 EFLAGS: 00010246
[   12.488973][  T281] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   12.489266][  T281] RDX: 0000000000000000 RSI: ffff88800abb2c98 RDI: ffff888008f2d080
[   12.489564][  T281] RBP: ffff88800aab0040 R08: 0000000000000000 R09: fffffbfff237d83c
[   12.489848][  T281] R10: ffffffff91bec1e7 R11: ffff888008f2c5c0 R12: 0000000000000000
[   12.490135][  T281] R13: ffff88800abb2128 R14: ffff88800abb2008 R15: ffff88800abb2000
[   12.490453][  T281] FS:  00007fe18445a800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   12.490800][  T281] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   12.491043][  T281] CR2: 00007fe184599440 CR3: 00000000093a8004 CR4: 0000000000772ef0
[   12.491376][  T281] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   12.491688][  T281] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   12.492000][  T281] PKRU: 55555554
[   12.492158][  T281] Call Trace:
[   12.492360][  T281]  <TASK>
[ 12.492489][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.492734][ T281] ? __warn (kernel/panic.c:748) 
[ 12.492885][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.493078][ T281] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 12.493346][ T281] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 12.493506][ T281] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 12.493709][ T281] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 12.493917][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 12.494123][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 12.494380][ T281] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 12.494631][ 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) 
[ 12.494888][ T281] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 12.495108][ T281] register_netdevice (net/core/dev.c:11003) 
[ 12.495359][ T281] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 12.495624][ T281] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 12.495888][ T281] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 12.496204][ T281] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 12.496570][ T281] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 12.496917][ T281] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 12.497211][ T281] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 12.497532][ T281] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 12.497835][ T281] devlink_reload (net/devlink/dev.c:474) 
[ 12.498076][ T281] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 12.498364][ T281] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 12.498613][ T281] ? cap_capable (security/commoncap.c:131) 
[ 12.498870][ 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) 
[ 12.499049][ T281] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 12.499247][ T281] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 12.499526][ T281] ? __nla_parse (lib/nlattr.c:732) 
[ 12.499732][ T281] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 12.499969][ T281] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 12.500282][ T281] ? cap_capable (security/commoncap.c:131) 
[ 12.500537][ T281] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 12.500781][ T281] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 12.501023][ T281] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 12.501259][ T281] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 12.501548][ T281] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 12.501811][ T281] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 12.502071][ T281] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 12.502279][ T281] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 12.502500][ T281] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 12.502710][ T281] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 12.502940][ T281] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 12.503100][ T281] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 12.503327][ T281] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 12.503592][ T281] genl_rcv (net/netlink/genetlink.c:1220) 
[ 12.503776][ T281] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 12.503977][ T281] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 12.504182][ T281] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 12.504398][ T281] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 12.504601][ T281] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 12.504833][ T281] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 12.505062][ T281] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 12.505278][ T281] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 12.505500][ T281] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 12.505708][ T281] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 12.505926][ T281] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 12.506157][ T281] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 12.506408][ T281] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 12.506718][ T281] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 12.506974][ T281] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 12.507293][ T281] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 12.507570][ T281] __x64_sys_sendto (net/socket.c:2181) 
[ 12.507819][ T281] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 12.508129][ T281] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 12.508389][ T281] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   12.508687][  T281] RIP: 0033:0x7fe184666a4a
[ 12.508925][ 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
[   12.509773][  T281] RSP: 002b:00007ffd0b2afa38 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   12.510124][  T281] RAX: ffffffffffffffda RBX: 000000002d8c9b00 RCX: 00007fe184666a4a
[   12.510431][  T281] RDX: 0000000000000040 RSI: 000000002d8c9b00 RDI: 0000000000000005
[   12.510724][  T281] RBP: 000000002d8c9910 R08: 00007fe18480a200 R09: 000000000000000c
[   12.511051][  T281] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   12.511442][  T281] R13: 000000002d8c9910 R14: 0000000000000000 R15: 0000000000000001
| [   35.324403][   T67] ------------[ cut here ]------------
| [ 35.324708][ T67] WARNING: CPU: 0 PID: 67 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) 
| [   35.325048][   T67] Modules linked in: netdevsim
| [   35.325615][   T67] Tainted: [W]=WARN
[   35.325748][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.325960][   T67] Workqueue: netns cleanup_net
[ 35.326165][ T67] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 35.326396][ T67] 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
[   35.327012][   T67] RSP: 0018:ffffc90000487620 EFLAGS: 00010246
[   35.327230][   T67] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   35.327494][   T67] RDX: 0000000000000000 RSI: ffff88800592ac98 RDI: ffff888008f20b50
[   35.327769][   T67] RBP: ffffffff93d23440 R08: 0000000000000000 R09: fffffbfff237d83c
[   35.328031][   T67] R10: ffffffff91bec1e7 R11: ffff888008f20040 R12: 0000000000000000
[   35.328287][   T67] R13: ffff88800592a128 R14: ffff88800592a008 R15: ffff88800592a000
[   35.328560][   T67] FS:  0000000000000000(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   35.328869][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.329096][   T67] CR2: 00007fd57cd72000 CR3: 0000000027728003 CR4: 0000000000772ef0
[   35.329525][   T67] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   35.329790][   T67] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   35.330045][   T67] PKRU: 55555554
[   35.330174][   T67] Call Trace:
[   35.330314][   T67]  <TASK>
[ 35.330406][ T67] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 35.330588][ T67] ? __warn (kernel/panic.c:748) 
[ 35.330736][ T67] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 35.330909][ T67] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 35.331087][ T67] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 35.331224][ T67] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 35.331404][ T67] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 35.331595][ T67] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 35.331790][ T67] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 35.332017][ T67] ? _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) 
[ 35.332193][ T67] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 35.332376][ T67] register_netdevice (net/core/dev.c:11003) 
[ 35.332568][ T67] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 35.332754][ T67] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 35.332951][ T67] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 35.333175][ T67] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 35.333415][ T67] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 35.333645][ T67] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 35.333868][ T67] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 35.334082][ T67] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 35.334327][ T67] devlink_reload (net/devlink/dev.c:474) 
[ 35.334509][ T67] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 35.334685][ T67] ? devlinks_xa_find_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/devlink/core.c:343) 
[ 35.334866][ T67] devlink_pernet_pre_exit (net/devlink/core.c:288 net/devlink/devl_internal.h:114 net/devlink/core.c:513) 
[ 35.335039][ T67] ? __pfx_devlink_pernet_pre_exit (net/devlink/core.c:496) 
[ 35.335266][ T67] cleanup_net (net/core/net_namespace.c:162 net/core/net_namespace.c:632) 
[ 35.335450][ T67] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 35.335628][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:594) 
[ 35.335796][ T67] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 35.335978][ T67] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 35.336146][ T67] ? process_one_work (kernel/workqueue.c:3214) 
[ 35.336337][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 35.336519][ T67] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 35.336705][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 35.336890][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 35.337067][ T67] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 35.337239][ T67] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 35.337471][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 35.337647][ T67] kthread (kernel/kthread.c:464) 
[ 35.337792][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 35.337984][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 35.338159][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 35.338347][ T67] ? __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