======================================
| 0
| xx__-> [   10.800361][  T228] ------------[ cut here ]------------
| [ 10.800769][ T228] WARNING: CPU: 3 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) 
| [   10.801364][  T228] Modules linked in: netdevsim
[   10.802002][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.802289][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.802571][ 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
[   10.803409][  T228] RSP: 0018:ffffc90000a57520 EFLAGS: 00010246
[   10.803741][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.804131][  T228] RDX: 0000000000000000 RSI: ffff888002132c98 RDI: ffff8880056a0b78
[   10.804531][  T228] RBP: ffffffffa9523440 R08: 0000000000000000 R09: fffffbfff4e7d83c
[   10.804913][  T228] R10: ffffffffa73ec1e7 R11: ffff8880056a0040 R12: 0000000000000000
[   10.805323][  T228] R13: ffff888002132128 R14: ffff888002132008 R15: ffff888002132000
[   10.805747][  T228] FS:  00007f386e363740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[   10.806215][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.806536][  T228] CR2: 00007f33c2212f10 CR3: 0000000002ad0006 CR4: 0000000000772ef0
[   10.806918][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.807332][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.807846][  T228] PKRU: 55555554
[   10.808043][  T228] Call Trace:
[   10.808257][  T228]  <TASK>
[ 10.808405][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.808669][ T228] ? __warn (kernel/panic.c:748) 
[ 10.808867][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.809138][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.809406][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.809601][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.809871][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.810155][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.810425][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.810746][ 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) 
[ 10.811006][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.811281][ T228] register_netdevice (net/core/dev.c:11003) 
[ 10.811549][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.811823][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.812142][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.812422][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.812589][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.812868][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.813164][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.813454][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.813698][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.813970][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.814203][ 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)) 
[ 10.814365][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.814586][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.814807][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.815030][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 10.815263][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.815491][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.815767][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.815990][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.816208][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.816498][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.816757][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.817021][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 10.817288][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.817534][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.817784][ 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) 
[ 10.818044][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 10.818317][ T228] device_add (drivers/base/core.c:3672) 
[ 10.818577][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.818836][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.819113][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.819443][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.819769][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.819982][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.820211][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.820421][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.820642][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.820812][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.821028][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.821244][ 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) 
[ 10.821463][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.821683][ T228] ksys_write (fs/read_write.c:731) 
[ 10.821844][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.822057][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.822289][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.822505][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.822825][  T228] RIP: 0033:0x7f386e4a4b77
[ 10.823204][ 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
[   10.824437][  T228] RSP: 002b:00007ffc51c64c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.824764][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f386e4a4b77
[   10.825108][  T228] RDX: 0000000000000007 RSI: 000055e593840b50 RDI: 0000000000000001
[   10.825428][  T228] RBP: 000055e593840b50 R08: 0000000000000003 R09: 0000000000000000
[   10.825774][  T228] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000007
[   10.826099][  T228] R13: 00007f386e560760 R14: 0000000000000007 R15: 00007f386e55b9c0
| [   10.889450][  T228] ------------[ cut here ]------------
| [ 10.890163][ 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) 
| [   10.890647][  T228] Modules linked in: netdevsim
| [   10.891377][  T228] Tainted: [W]=WARN
[   10.891639][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.891959][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.892298][ 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
[   10.893211][  T228] RSP: 0018:ffffc90000a57520 EFLAGS: 00010246
[   10.893547][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.893922][  T228] RDX: 0000000000000000 RSI: ffff88800e542c98 RDI: ffff8880056a0b78
[   10.894301][  T228] RBP: ffffffffa9523440 R08: 0000000000000000 R09: fffffbfff4e7d83c
[   10.894737][  T228] R10: ffffffffa73ec1e7 R11: ffff8880056a0040 R12: 0000000000000000
[   10.895109][  T228] R13: ffff88800e542128 R14: ffff88800e542008 R15: ffff88800e542000
[   10.895463][  T228] FS:  00007f386e363740(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[   10.895884][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.896216][  T228] CR2: 00007f33c2012960 CR3: 0000000002ad0006 CR4: 0000000000772ef0
[   10.896574][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.896934][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.897309][  T228] PKRU: 55555554
[   10.897506][  T228] Call Trace:
[   10.897696][  T228]  <TASK>
[ 10.897829][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.898069][ T228] ? __warn (kernel/panic.c:748) 
[ 10.898277][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.898515][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.898770][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.898961][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.899215][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.899477][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.899723][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.900021][ 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) 
[ 10.900281][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.900536][ T228] register_netdevice (net/core/dev.c:11003) 
[ 10.900783][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.901047][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.901317][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.901615][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.901800][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.902114][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.902411][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.902713][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.902965][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.903272][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.903516][ 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)) 
[ 10.903699][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.903941][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.904193][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.904454][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 10.904839][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.905255][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.905728][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.906126][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.906485][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.906857][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.907265][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.907639][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 10.908025][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.908430][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.908812][ 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) 
[ 10.909233][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 10.909627][ T228] device_add (drivers/base/core.c:3672) 
[ 10.910021][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.910439][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.910853][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.911367][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.911860][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.912267][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.912669][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.913063][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.913476][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.913753][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.914160][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.914541][ 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) 
[ 10.914943][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.915364][ T228] ksys_write (fs/read_write.c:731) 
[ 10.915675][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.916059][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.916485][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.916880][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.917364][  T228] RIP: 0033:0x7f386e4a4b77
[ 10.917756][ T228] Code: Unable to access opcode bytes at 0x7f386e4a4b4d.

Code starting with the faulting instruction
===========================================
[   10.918282][  T228] RSP: 002b:00007ffc51c64da8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.918854][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f386e4a4b77
[   10.919421][  T228] RDX: 0000000000000007 RSI: 000055e593840b50 RDI: 0000000000000001
[   10.919974][  T228] RBP: 000055e593840b50 R08: 0000000000000000 R09: 00007f386e5174e0
[   10.920558][  T228] R10: 00007f386e5173e0 R11: 0000000000000246 R12: 0000000000000007
[   10.921142][  T228] R13: 00007f386e560760 R14: 0000000000000007 R15: 00007f386e55b9c0
| [   11.027379][  T228] ------------[ cut here ]------------
| [ 11.027737][ 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) 
| [   11.028444][  T228] Modules linked in: netdevsim
| [   11.029199][  T228] Tainted: [W]=WARN
[   11.029382][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.029686][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.029997][ 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
[   11.030867][  T228] RSP: 0000:ffffc90000a57520 EFLAGS: 00010246
[   11.031197][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.031615][  T228] RDX: 0000000000000000 RSI: ffff888004d02c98 RDI: ffff8880056a0b78
[   11.031954][  T228] RBP: ffffffffa9523440 R08: 0000000000000000 R09: fffffbfff4e7d83c
[   11.032352][  T228] R10: ffffffffa73ec1e7 R11: ffff8880056a0040 R12: 0000000000000000
[   11.032719][  T228] R13: ffff888004d02128 R14: ffff888004d02008 R15: ffff888004d02000
[   11.033080][  T228] FS:  00007f386e363740(0000) GS:ffff88802f400000(0000) knlGS:0000000000000000
[   11.033527][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.033864][  T228] CR2: 00007f33c1f851e0 CR3: 0000000002ad0005 CR4: 0000000000772ef0
[   11.034221][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.034563][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.034896][  T228] PKRU: 55555554
[   11.035065][  T228] Call Trace:
[   11.035242][  T228]  <TASK>
[ 11.035360][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.035607][ T228] ? __warn (kernel/panic.c:748) 
[ 11.035784][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.036014][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.036252][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.036422][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.036643][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.036881][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.037126][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 11.037417][ 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) 
[ 11.037651][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.037876][ T228] register_netdevice (net/core/dev.c:11003) 
[ 11.038114][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 11.038356][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.038602][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.038901][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.039217][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 11.039510][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 11.039750][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 11.040035][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 11.040281][ 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)) 
[ 11.040467][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 11.040714][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 11.040957][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 11.041204][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 11.041428][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 11.041661][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 11.041938][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 11.042185][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 11.042413][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 11.042642][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 11.042875][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 11.043125][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 11.043358][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 11.043594][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 11.043821][ 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) 
[ 11.044058][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 11.044302][ T228] device_add (drivers/base/core.c:3672) 
[ 11.044533][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 11.044753][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 11.045001][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 11.045319][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 11.045638][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 11.045870][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 11.046117][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 11.046339][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 11.046577][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 11.046757][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 11.046999][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 11.047233][ 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) 
[ 11.047475][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 11.047714][ T228] ksys_write (fs/read_write.c:731) 
[ 11.047893][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 11.048135][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 11.048374][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.048606][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.048895][  T228] RIP: 0033:0x7f386e4a4b77
[ 11.049136][ T228] Code: Unable to access opcode bytes at 0x7f386e4a4b4d.

Code starting with the faulting instruction
===========================================
[   11.049431][  T228] RSP: 002b:00007ffc51c64ed8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   11.049767][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f386e4a4b77
[   11.050125][  T228] RDX: 0000000000000007 RSI: 000055e593840b50 RDI: 0000000000000001
[   11.050475][  T228] RBP: 000055e593840b50 R08: 0000000000000000 R09: 00007f386e5174e0
[   11.050817][  T228] R10: 00007f386e5173e0 R11: 0000000000000246 R12: 0000000000000007
[   11.051169][  T228] R13: 00007f386e560760 R14: 0000000000000007 R15: 00007f386e55b9c0
| [   11.453297][  T271] ------------[ cut here ]------------
| [ 11.453636][ 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) 
| [   11.454766][  T271] Modules linked in: netdevsim
| [   11.455378][  T271] Tainted: [W]=WARN
[   11.455546][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.455799][ T271] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.456117][ 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
[   11.456815][  T271] RSP: 0018:ffffc900005871e8 EFLAGS: 00010246
[   11.457074][  T271] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.457436][  T271] RDX: 0000000000000000 RSI: ffff8880099f2c98 RDI: ffff888009895080
[   11.457772][  T271] RBP: ffff888009f50040 R08: 0000000000000000 R09: fffffbfff4e7d83c
[   11.458068][  T271] R10: ffffffffa73ec1e7 R11: ffff8880098945c0 R12: 0000000000000000
[   11.458403][  T271] R13: ffff8880099f2128 R14: ffff8880099f2008 R15: ffff8880099f2000
[   11.458697][  T271] FS:  00007f333f0f4800(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[   11.459058][  T271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.459338][  T271] CR2: 00007f333f220530 CR3: 000000000e73e002 CR4: 0000000000772ef0
[   11.459641][  T271] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.459942][  T271] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.460254][  T271] PKRU: 55555554
[   11.460404][  T271] Call Trace:
[   11.460554][  T271]  <TASK>
[ 11.460656][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.460855][ T271] ? __warn (kernel/panic.c:748) 
[ 11.461009][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.461239][ T271] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.461454][ T271] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.461606][ T271] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.461820][ T271] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.462033][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.462260][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 11.462487][ T271] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 11.462757][ 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) 
[ 11.462964][ T271] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.463204][ T271] register_netdevice (net/core/dev.c:11003) 
[ 11.463424][ T271] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 11.463632][ T271] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.463848][ T271] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.464135][ T271] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.464404][ T271] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 11.464677][ T271] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 11.464946][ T271] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 11.465241][ T271] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 11.465534][ T271] devlink_reload (net/devlink/dev.c:474) 
[ 11.465789][ T271] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 11.466004][ T271] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 11.466255][ T271] ? cap_capable (security/commoncap.c:131) 
[ 11.466463][ 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) 
[ 11.466638][ T271] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 11.466842][ T271] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.467102][ T271] ? __nla_parse (lib/nlattr.c:732) 
[ 11.467317][ T271] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 11.467526][ T271] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 11.467788][ T271] ? cap_capable (security/commoncap.c:131) 
[ 11.467981][ T271] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 11.468202][ T271] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 11.468417][ T271] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 11.468631][ T271] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 11.468879][ T271] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.469154][ T271] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 11.469427][ T271] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 11.469638][ T271] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 11.469848][ T271] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 11.470049][ T271] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 11.470301][ T271] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 11.470504][ T271] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 11.470753][ T271] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 11.471025][ T271] genl_rcv (net/netlink/genetlink.c:1220) 
[ 11.471199][ T271] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 11.471467][ T271] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 11.471754][ T271] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 11.472079][ T271] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 11.472431][ T271] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 11.472722][ T271] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 11.473061][ T271] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 11.473690][ T271] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 11.474023][ T271] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 11.474353][ T271] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 11.474672][ T271] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 11.475017][ T271] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 11.475362][ T271] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 11.475783][ T271] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 11.476228][ T271] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 11.476579][ T271] __x64_sys_sendto (net/socket.c:2181) 
[ 11.476918][ T271] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 11.477335][ T271] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.477646][ T271] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.478034][  T271] RIP: 0033:0x7f333f300a4a
[ 11.478387][ 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
[   11.479520][  T271] RSP: 002b:00007ffdf5bfe9d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   11.479992][  T271] RAX: ffffffffffffffda RBX: 000000000dd2bb00 RCX: 00007f333f300a4a
[   11.480503][  T271] RDX: 0000000000000040 RSI: 000000000dd2bb00 RDI: 0000000000000005
[   11.480965][  T271] RBP: 000000000dd2b910 R08: 00007f333f4a4200 R09: 000000000000000c
[   11.481469][  T271] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   11.481925][  T271] R13: 000000000dd2b910 R14: 0000000000000000 R15: 0000000000000001
| [   11.663404][  T276] ------------[ cut here ]------------
| [ 11.663745][ 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) 
| [   11.664385][  T276] Modules linked in: netdevsim
| [   11.664944][  T276] Tainted: [W]=WARN
[   11.665111][  T276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.665358][ T276] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.665628][ 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
[   11.666359][  T276] RSP: 0018:ffffc90000a671e8 EFLAGS: 00010246
[   11.666605][  T276] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.666902][  T276] RDX: 0000000000000000 RSI: ffff8880059e2c98 RDI: ffff8880024f8b00
[   11.667206][  T276] RBP: ffff888009f50040 R08: 0000000000000000 R09: fffffbfff4e7d83c
[   11.667493][  T276] R10: ffffffffa73ec1e7 R11: ffff8880024f8040 R12: 0000000000000000
[   11.667793][  T276] R13: ffff8880059e2128 R14: ffff8880059e2008 R15: ffff8880059e2000
[   11.668125][  T276] FS:  00007f1bc72ee800(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[   11.668473][  T276] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.668721][  T276] CR2: 00007f386e362258 CR3: 000000000ac7c005 CR4: 0000000000772ef0
[   11.669014][  T276] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.669316][  T276] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.669608][  T276] PKRU: 55555554
[   11.669756][  T276] Call Trace:
[   11.669906][  T276]  <TASK>
[ 11.670009][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.670257][ T276] ? __warn (kernel/panic.c:748) 
[ 11.670411][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.670607][ T276] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.670812][ T276] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.670965][ T276] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.671171][ T276] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.671392][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.671589][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 11.671793][ T276] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 11.672039][ 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) 
[ 11.672254][ T276] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.672450][ T276] register_netdevice (net/core/dev.c:11003) 
[ 11.672648][ T276] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 11.672859][ T276] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.673078][ T276] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.673345][ T276] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.673605][ T276] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 11.673865][ T276] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 11.674158][ T276] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 11.674416][ T276] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 11.674674][ T276] devlink_reload (net/devlink/dev.c:474) 
[ 11.674875][ T276] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 11.675075][ T276] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 11.675350][ T276] ? cap_capable (security/commoncap.c:131) 
[ 11.675567][ 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) 
[ 11.675729][ T276] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 11.675933][ T276] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.676205][ T276] ? __nla_parse (lib/nlattr.c:732) 
[ 11.676417][ T276] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 11.676620][ T276] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 11.676878][ T276] ? cap_capable (security/commoncap.c:131) 
[ 11.677077][ T276] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 11.677293][ T276] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 11.677502][ T276] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 11.677754][ T276] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 11.677992][ T276] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.678282][ T276] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 11.678542][ T276] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 11.678740][ T276] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 11.678931][ T276] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 11.679141][ T276] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 11.679358][ T276] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 11.679508][ T276] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 11.679712][ T276] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 11.679915][ T276] genl_rcv (net/netlink/genetlink.c:1220) 
[ 11.680063][ T276] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 11.680295][ T276] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 11.680499][ T276] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 11.680710][ T276] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 11.680911][ T276] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 11.681121][ T276] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 11.681320][ T276] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 11.681525][ T276] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 11.681723][ T276] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 11.681916][ T276] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 11.682146][ T276] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 11.682361][ T276] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 11.682560][ T276] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 11.682799][ T276] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 11.682993][ T276] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 11.683256][ T276] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 11.683459][ T276] __x64_sys_sendto (net/socket.c:2181) 
[ 11.683659][ T276] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 11.683901][ T276] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.684116][ T276] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.684363][  T276] RIP: 0033:0x7f1bc74faa4a
[ 11.684566][ 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
[   11.685262][  T276] RSP: 002b:00007ffea304d068 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   11.685566][  T276] RAX: ffffffffffffffda RBX: 0000000033c09b00 RCX: 00007f1bc74faa4a
[   11.685857][  T276] RDX: 0000000000000040 RSI: 0000000033c09b00 RDI: 0000000000000005
[   11.686161][  T276] RBP: 0000000033c09910 R08: 00007f1bc769e200 R09: 000000000000000c
[   11.686458][  T276] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   11.686742][  T276] R13: 0000000033c09910 R14: 0000000000000000 R15: 0000000000000001
| [   11.877068][  T281] ------------[ cut here ]------------
| [ 11.877590][ 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) 
| [   11.877992][  T281] Modules linked in: netdevsim
| [   11.878636][  T281] Tainted: [W]=WARN
[   11.878790][  T281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.879044][ T281] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.879332][ 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
[   11.880012][  T281] RSP: 0018:ffffc900005871e8 EFLAGS: 00010246
[   11.880265][  T281] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.880557][  T281] RDX: 0000000000000000 RSI: ffff88800515ac98 RDI: ffff88800c21adc0
[   11.880842][  T281] RBP: ffff888009f50040 R08: 0000000000000000 R09: fffffbfff4e7d83c
[   11.881138][  T281] R10: ffffffffa73ec1e7 R11: ffff88800c21a300 R12: 0000000000000000
[   11.881430][  T281] R13: ffff88800515a128 R14: ffff88800515a008 R15: ffff88800515a000
[   11.881720][  T281] FS:  00007f0b5035d800(0000) GS:ffff88802f480000(0000) knlGS:0000000000000000
[   11.882060][  T281] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.882340][  T281] CR2: 000055e583456990 CR3: 0000000009f8e002 CR4: 0000000000772ef0
[   11.882635][  T281] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.882922][  T281] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.883322][  T281] PKRU: 55555554
[   11.883470][  T281] Call Trace:
[   11.883616][  T281]  <TASK>
[ 11.883717][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.883912][ T281] ? __warn (kernel/panic.c:748) 
[ 11.884065][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.884356][ T281] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.884561][ T281] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.884714][ T281] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.884911][ T281] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.885207][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.885405][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 11.885620][ T281] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 11.885865][ 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) 
[ 11.886065][ T281] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.886378][ T281] register_netdevice (net/core/dev.c:11003) 
[ 11.886582][ T281] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 11.886787][ T281] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.886998][ T281] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.887348][ T281] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.887612][ T281] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 11.887869][ T281] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 11.888215][ T281] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 11.888463][ T281] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 11.888717][ T281] devlink_reload (net/devlink/dev.c:474) 
[ 11.888921][ T281] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 11.889177][ T281] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 11.889378][ T281] ? cap_capable (security/commoncap.c:131) 
[ 11.889570][ 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) 
[ 11.889726][ T281] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 11.889922][ T281] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.890192][ T281] ? __nla_parse (lib/nlattr.c:732) 
[ 11.890400][ T281] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 11.890605][ T281] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 11.890858][ T281] ? cap_capable (security/commoncap.c:131) 
[ 11.891051][ T281] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 11.891266][ T281] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 11.891463][ T281] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 11.891661][ T281] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 11.891898][ T281] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.892153][ T281] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 11.892405][ T281] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 11.892602][ T281] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 11.892797][ T281] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 11.892994][ T281] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 11.893214][ T281] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 11.893361][ T281] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 11.893562][ T281] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 11.893770][ T281] genl_rcv (net/netlink/genetlink.c:1220) 
[ 11.893917][ T281] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 11.894138][ T281] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 11.894334][ T281] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 11.894536][ T281] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 11.894735][ T281] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 11.894926][ T281] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 11.895142][ T281] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 11.895351][ T281] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 11.895562][ T281] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 11.895755][ T281] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 11.895947][ T281] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 11.896207][ T281] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 11.896412][ T281] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 11.896671][ T281] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 11.896868][ T281] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 11.897129][ T281] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 11.897471][ T281] __x64_sys_sendto (net/socket.c:2181) 
[ 11.897669][ T281] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 11.897910][ T281] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.898137][ T281] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.898389][  T281] RIP: 0033:0x7f0b50569a4a
[ 11.898592][ 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
[   11.899276][  T281] RSP: 002b:00007ffc6f269688 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   11.899581][  T281] RAX: ffffffffffffffda RBX: 0000000021b9ab00 RCX: 00007f0b50569a4a
[   11.899869][  T281] RDX: 0000000000000040 RSI: 0000000021b9ab00 RDI: 0000000000000005
[   11.900168][  T281] RBP: 0000000021b9a910 R08: 00007f0b5070d200 R09: 000000000000000c
[   11.900462][  T281] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   11.900757][  T281] R13: 0000000021b9a910 R14: 0000000000000000 R15: 0000000000000001
| [   33.931398][   T11] ------------[ cut here ]------------
| [ 33.931698][ T11] WARNING: CPU: 3 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) 
| [   33.932142][   T11] Modules linked in: netdevsim
| [   33.932745][   T11] Tainted: [W]=WARN
[   33.932888][   T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   33.933157][   T11] Workqueue: netns cleanup_net
[ 33.933377][ T11] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 33.933611][ 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
[   33.934329][   T11] RSP: 0018:ffffc900000b7620 EFLAGS: 00010246
[   33.934547][   T11] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   33.934845][   T11] RDX: 0000000000000000 RSI: ffff88800296ac98 RDI: ffff888001a82e10
[   33.935125][   T11] RBP: ffffffffa9523440 R08: 0000000000000000 R09: fffffbfff4e7d83c
[   33.935416][   T11] R10: ffffffffa73ec1e7 R11: ffff888001a82300 R12: 0000000000000000
[   33.935704][   T11] R13: ffff88800296a128 R14: ffff88800296a008 R15: ffff88800296a000
[   33.936010][   T11] FS:  0000000000000000(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[   33.936333][   T11] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   33.936567][   T11] CR2: 00007f5f48e5d000 CR3: 0000000036928004 CR4: 0000000000772ef0
[   33.936836][   T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   33.937333][   T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   33.937589][   T11] PKRU: 55555554
[   33.937737][   T11] Call Trace:
[   33.937864][   T11]  <TASK>
[ 33.937953][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 33.938153][ T11] ? __warn (kernel/panic.c:748) 
[ 33.938292][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 33.938464][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 33.938652][ T11] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 33.938785][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 33.938972][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 33.939173][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 33.939354][ T11] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 33.939573][ 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) 
[ 33.939755][ T11] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 33.939931][ T11] register_netdevice (net/core/dev.c:11003) 
[ 33.940124][ T11] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 33.940330][ T11] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 33.940525][ T11] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 33.940746][ T11] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 33.940978][ T11] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 33.941229][ T11] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 33.941453][ T11] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 33.941674][ T11] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 33.941906][ T11] devlink_reload (net/devlink/dev.c:474) 
[ 33.942095][ T11] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 33.942271][ T11] ? devlinks_xa_find_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/devlink/core.c:343) 
[ 33.942453][ T11] devlink_pernet_pre_exit (net/devlink/core.c:288 net/devlink/devl_internal.h:114 net/devlink/core.c:513) 
[ 33.942630][ T11] ? __pfx_devlink_pernet_pre_exit (net/devlink/core.c:496) 
[ 33.942861][ T11] cleanup_net (net/core/net_namespace.c:162 net/core/net_namespace.c:632) 
[ 33.943040][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 33.943231][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:594) 
[ 33.943404][ T11] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 33.943581][ T11] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 33.943754][ T11] ? process_one_work (kernel/workqueue.c:3214) 
[ 33.943938][ T11] process_one_work (kernel/workqueue.c:3238) 
[ 33.944144][ T11] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 33.944321][ T11] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 33.944511][ T11] ? assign_work (kernel/workqueue.c:1200) 
[ 33.944692][ T11] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 33.944881][ T11] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 33.945083][ T11] kthread (kernel/kthread.c:464) 
[ 33.945242][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 33.945450][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 33.945633][ T11] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 33.945811][ 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