======================================
| 0
| xx__-> [   10.762181][  T226] ------------[ cut here ]------------
| [ 10.762609][ T226] WARNING: CPU: 2 PID: 226 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) 
| [   10.763160][  T226] Modules linked in: netdevsim
[   10.763819][  T226] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.764103][ T226] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.764394][ T226] 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
[   10.765143][  T226] RSP: 0018:ffffc90000ae7520 EFLAGS: 00010246
[   10.765440][  T226] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.765766][  T226] RDX: 0000000000000000 RSI: ffff8880050aac98 RDI: ffff888005a4d0f8
[   10.766129][  T226] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   10.766470][  T226] R10: ffffffffadfec1e7 R11: ffff888005a4c5c0 R12: 0000000000000000
[   10.766801][  T226] R13: ffff8880050aa128 R14: ffff8880050aa008 R15: ffff8880050aa000
[   10.767131][  T226] FS:  00007fe9f4915740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   10.767574][  T226] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.767851][  T226] CR2: 000055d3b4801b68 CR3: 000000000a8d0004 CR4: 0000000000772ef0
[   10.768171][  T226] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.768510][  T226] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.768839][  T226] PKRU: 55555554
[   10.769014][  T226] Call Trace:
[   10.769191][  T226]  <TASK>
[ 10.769317][ T226] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.769556][ T226] ? __warn (kernel/panic.c:748) 
[ 10.769730][ T226] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.769951][ T226] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.770185][ T226] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.770356][ T226] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.770607][ T226] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.770842][ T226] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.771084][ T226] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.771359][ T226] ? _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) 
[ 10.771620][ T226] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.771845][ T226] register_netdevice (net/core/dev.c:11003) 
[ 10.772082][ T226] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.772314][ T226] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.772565][ T226] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.772843][ T226] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.773015][ T226] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.773309][ T226] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.773606][ T226] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.773906][ T226] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.774157][ T226] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.774467][ T226] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.774708][ T226] ? 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)) 
[ 10.774885][ T226] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.775121][ T226] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.775349][ T226] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.775614][ T226] driver_probe_device (drivers/base/dd.c:830) 
[ 10.775834][ T226] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.776064][ T226] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.776328][ T226] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.776581][ T226] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.776798][ T226] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.777021][ T226] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.777246][ T226] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.777483][ T226] __device_attach (drivers/base/dd.c:1030) 
[ 10.777708][ T226] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.777926][ T226] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.778159][ T226] ? 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) 
[ 10.778388][ T226] bus_probe_device (drivers/base/bus.c:537) 
[ 10.778651][ T226] device_add (drivers/base/core.c:3672) 
[ 10.778937][ T226] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.779161][ T226] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.779392][ T226] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.779696][ T226] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.779990][ T226] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.780225][ T226] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.780460][ T226] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.780685][ T226] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.780909][ T226] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.781103][ T226] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.781330][ T226] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.781557][ T226] ? 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) 
[ 10.781795][ T226] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.782039][ T226] ksys_write (fs/read_write.c:731) 
[ 10.782221][ T226] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.782482][ T226] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.782721][ T226] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.782945][ T226] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.783236][  T226] RIP: 0033:0x7fe9f4a56b77
[ 10.783487][ T226] 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
[   10.784263][  T226] RSP: 002b:00007ffc837c4b68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.784618][  T226] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe9f4a56b77
[   10.784941][  T226] RDX: 0000000000000005 RSI: 000055d3b4800b60 RDI: 0000000000000001
[   10.785284][  T226] RBP: 000055d3b4800b60 R08: 0000000000000003 R09: 0000000000000000
[   10.785643][  T226] R10: 0000000000000200 R11: 0000000000000246 R12: 0000000000000005
[   10.785991][  T226] R13: 00007fe9f4b12760 R14: 0000000000000005 R15: 00007fe9f4b0d9c0
| [   10.816539][  T226] ------------[ cut here ]------------
| [ 10.816821][ T226] WARNING: CPU: 1 PID: 226 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) 
| [   10.817227][  T226] Modules linked in: netdevsim
| [   10.817924][  T226] Tainted: [W]=WARN
[   10.818101][  T226] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.818381][ T226] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.818667][ T226] 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
[   10.819448][  T226] RSP: 0018:ffffc90000ae7520 EFLAGS: 00010246
[   10.819710][  T226] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.820023][  T226] RDX: 0000000000000000 RSI: ffff888008e9ac98 RDI: ffff888005a4d0f8
[   10.820345][  T226] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   10.820956][  T226] R10: ffffffffadfec1e7 R11: ffff888005a4c5c0 R12: 0000000000000000
[   10.821288][  T226] R13: ffff888008e9a128 R14: ffff888008e9a008 R15: ffff888008e9a000
[   10.821625][  T226] FS:  00007fe9f4915740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   10.821996][  T226] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.822259][  T226] CR2: 00005624e2f5f888 CR3: 000000000a8d0003 CR4: 0000000000772ef0
[   10.822591][  T226] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.822894][  T226] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.823208][  T226] PKRU: 55555554
[   10.823380][  T226] Call Trace:
[   10.823545][  T226]  <TASK>
[ 10.823658][ T226] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.823873][ T226] ? __warn (kernel/panic.c:748) 
[ 10.824034][ T226] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.824243][ T226] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.824500][ T226] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.824658][ T226] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.824872][ T226] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.825095][ T226] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.825341][ T226] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.825624][ T226] ? _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) 
[ 10.825842][ T226] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.826055][ T226] register_netdevice (net/core/dev.c:11003) 
[ 10.826285][ T226] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.826523][ T226] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.826761][ T226] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.827033][ T226] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.827208][ T226] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.827538][ T226] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.827803][ T226] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.828075][ T226] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.828327][ T226] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.828605][ T226] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.828812][ T226] ? 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)) 
[ 10.828966][ T226] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.829176][ T226] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.829422][ T226] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.829641][ T226] driver_probe_device (drivers/base/dd.c:830) 
[ 10.829862][ T226] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.830076][ T226] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.830338][ T226] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.830565][ T226] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.830768][ T226] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.830993][ T226] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.831208][ T226] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.831457][ T226] __device_attach (drivers/base/dd.c:1030) 
[ 10.831670][ T226] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.831880][ T226] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.832091][ T226] ? 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) 
[ 10.832322][ T226] bus_probe_device (drivers/base/bus.c:537) 
[ 10.832549][ T226] device_add (drivers/base/core.c:3672) 
[ 10.832765][ T226] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.832987][ T226] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.833249][ T226] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.833549][ T226] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.833835][ T226] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.834041][ T226] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.834265][ T226] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.834498][ T226] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.834767][ T226] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.834946][ T226] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.835156][ T226] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.835372][ T226] ? 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) 
[ 10.835615][ T226] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.835901][ T226] ksys_write (fs/read_write.c:731) 
[ 10.836115][ T226] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.836406][ T226] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.836743][ T226] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.837042][ T226] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.837384][  T226] RIP: 0033:0x7fe9f4a56b77
[ 10.837656][ T226] 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
[   10.838509][  T226] RSP: 002b:00007ffc837c4b68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.838823][  T226] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe9f4a56b77
[   10.839208][  T226] RDX: 0000000000000005 RSI: 000055d3b4800b60 RDI: 0000000000000001
[   10.839533][  T226] RBP: 000055d3b4800b60 R08: 0000000000000003 R09: 0000000000000000
[   10.839863][  T226] R10: 0000000000000200 R11: 0000000000000246 R12: 0000000000000005
[   10.840182][  T226] R13: 00007fe9f4b12760 R14: 0000000000000005 R15: 00007fe9f4b0d9c0
| [   10.852780][  T226] ------------[ cut here ]------------
| [ 10.853168][ T226] WARNING: CPU: 1 PID: 226 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) 
| [   10.855374][  T226] Modules linked in: netdevsim
| [   10.856816][  T226] Tainted: [W]=WARN
[   10.857096][  T226] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.857706][ T226] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.858162][ T226] 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
[   10.859262][  T226] RSP: 0018:ffffc90000ae7520 EFLAGS: 00010246
[   10.859657][  T226] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.859962][  T226] RDX: 0000000000000000 RSI: ffff88800a262c98 RDI: ffff888005a4d0f8
[   10.860270][  T226] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   10.860741][  T226] R10: ffffffffadfec1e7 R11: ffff888005a4c5c0 R12: 0000000000000000
[   10.861064][  T226] R13: ffff88800a262128 R14: ffff88800a262008 R15: ffff88800a262000
[   10.861378][  T226] FS:  00007fe9f4915740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   10.861865][  T226] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.862122][  T226] CR2: 00005624e2f5f888 CR3: 000000000a8d0003 CR4: 0000000000772ef0
[   10.862531][  T226] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.862879][  T226] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.863181][  T226] PKRU: 55555554
[   10.863370][  T226] Call Trace:
[   10.863621][  T226]  <TASK>
[ 10.863742][ T226] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.864003][ T226] ? __warn (kernel/panic.c:748) 
[ 10.864254][ T226] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.864763][ T226] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.865109][ T226] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.865367][ T226] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.865877][ T226] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.866251][ T226] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.866801][ T226] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.867250][ T226] ? _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) 
[ 10.867832][ T226] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.868197][ T226] register_netdevice (net/core/dev.c:11003) 
[ 10.868738][ T226] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.869123][ T226] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.869683][ T226] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.870162][ T226] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.870597][ T226] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.870903][ T226] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.871184][ T226] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.871574][ T226] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.871796][ T226] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.872077][ T226] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.872319][ T226] ? 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)) 
[ 10.872599][ T226] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.872813][ T226] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.873026][ T226] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.873233][ T226] driver_probe_device (drivers/base/dd.c:830) 
[ 10.873709][ T226] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.873922][ T226] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.874175][ T226] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.874389][ T226] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.874685][ T226] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.874892][ T226] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.875093][ T226] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.875317][ T226] __device_attach (drivers/base/dd.c:1030) 
[ 10.875624][ T226] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.875835][ T226] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.876149][ T226] ? 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) 
[ 10.876665][ T226] bus_probe_device (drivers/base/bus.c:537) 
[ 10.877018][ T226] device_add (drivers/base/core.c:3672) 
[ 10.877354][ T226] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.877867][ T226] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.878244][ T226] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.878874][ T226] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.879344][ T226] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.879875][ T226] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.880240][ T226] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.880766][ T226] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.881143][ T226] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.881599][ T226] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.881961][ T226] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.882286][ T226] ? 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) 
[ 10.882616][ T226] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.882829][ T226] ksys_write (fs/read_write.c:731) 
[ 10.882988][ T226] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.883187][ T226] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.883517][ T226] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.883727][ T226] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.884013][  T226] RIP: 0033:0x7fe9f4a56b77
[ 10.884238][ T226] 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
[   10.885054][  T226] RSP: 002b:00007ffc837c4b68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.885375][  T226] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe9f4a56b77
[   10.885794][  T226] RDX: 0000000000000005 RSI: 000055d3b4800b60 RDI: 0000000000000001
[   10.886093][  T226] RBP: 000055d3b4800b60 R08: 0000000000000003 R09: 0000000000000000
[   10.886407][  T226] R10: 0000000000000200 R11: 0000000000000246 R12: 0000000000000005
[   10.886802][  T226] R13: 00007fe9f4b12760 R14: 0000000000000005 R15: 00007fe9f4b0d9c0
| [   10.899586][  T226] ------------[ cut here ]------------
| [ 10.899887][ T226] WARNING: CPU: 0 PID: 226 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) 
| [   10.900387][  T226] Modules linked in: netdevsim
| [   10.901221][  T226] Tainted: [W]=WARN
[   10.901389][  T226] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.901674][ T226] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.901954][ T226] 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
[   10.902730][  T226] RSP: 0018:ffffc90000ae7520 EFLAGS: 00010246
[   10.903007][  T226] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.903333][  T226] RDX: 0000000000000000 RSI: ffff8880051aac98 RDI: ffff888005a4d0f8
[   10.903678][  T226] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   10.904002][  T226] R10: ffffffffadfec1e7 R11: ffff888005a4c5c0 R12: 0000000000000000
[   10.904327][  T226] R13: ffff8880051aa128 R14: ffff8880051aa008 R15: ffff8880051aa000
[   10.904661][  T226] FS:  00007fe9f4915740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   10.905038][  T226] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.905309][  T226] CR2: 00005624e2f7dcc8 CR3: 000000000a8d0003 CR4: 0000000000772ef0
[   10.905668][  T226] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.906012][  T226] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.906343][  T226] PKRU: 55555554
[   10.906518][  T226] Call Trace:
[   10.906700][  T226]  <TASK>
[ 10.906815][ T226] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.907034][ T226] ? __warn (kernel/panic.c:748) 
[ 10.907207][ T226] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.907440][ T226] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.907701][ T226] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.907868][ T226] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.908092][ T226] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.908333][ T226] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.908572][ T226] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.908865][ T226] ? _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) 
[ 10.909089][ T226] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.909311][ T226] register_netdevice (net/core/dev.c:11003) 
[ 10.909553][ T226] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.909790][ T226] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.910029][ T226] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.910332][ T226] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.910543][ T226] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.910842][ T226] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.911151][ T226] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.911470][ T226] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.911731][ T226] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.912010][ T226] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.912235][ T226] ? 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)) 
[ 10.912401][ T226] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.912698][ T226] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.912929][ T226] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.913152][ T226] driver_probe_device (drivers/base/dd.c:830) 
[ 10.913371][ T226] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.913607][ T226] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.913876][ T226] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.914093][ T226] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.914311][ T226] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.914547][ T226] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.914765][ T226] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.914992][ T226] __device_attach (drivers/base/dd.c:1030) 
[ 10.915213][ T226] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.915440][ T226] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.915682][ T226] ? 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) 
[ 10.915922][ T226] bus_probe_device (drivers/base/bus.c:537) 
[ 10.916169][ T226] device_add (drivers/base/core.c:3672) 
[ 10.916450][ T226] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.916689][ T226] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.916925][ T226] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.917212][ T226] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.917506][ T226] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.917741][ T226] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.918000][ T226] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.918220][ T226] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.918463][ T226] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.918644][ T226] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.918869][ T226] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.919087][ T226] ? 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) 
[ 10.919317][ T226] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.919559][ T226] ksys_write (fs/read_write.c:731) 
[ 10.919763][ T226] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.919994][ T226] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.920258][ T226] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.920515][ T226] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.920858][  T226] RIP: 0033:0x7fe9f4a56b77
[ 10.921118][ T226] 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
[   10.922004][  T226] RSP: 002b:00007ffc837c4b68 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.922374][  T226] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fe9f4a56b77
[   10.922743][  T226] RDX: 0000000000000005 RSI: 000055d3b4800b60 RDI: 0000000000000001
[   10.923128][  T226] RBP: 000055d3b4800b60 R08: 0000000000000003 R09: 0000000000000000
[   10.923608][  T226] R10: 0000000000000200 R11: 0000000000000246 R12: 0000000000000005
[   10.924040][  T226] R13: 00007fe9f4b12760 R14: 0000000000000005 R15: 00007fe9f4b0d9c0
| [   40.966355][  T313] ------------[ cut here ]------------
| [ 40.966931][ T313] WARNING: CPU: 2 PID: 313 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) 
| [   40.967628][  T313] Modules linked in: netdevsim
| [   40.968604][  T313] Tainted: [W]=WARN
[   40.968869][  T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 40.969292][ T313] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 40.969739][ T313] 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
[   40.970911][  T313] RSP: 0018:ffffc900006b71e8 EFLAGS: 00010246
[   40.971339][  T313] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   40.971857][  T313] RDX: 0000000000000000 RSI: ffff88800d29ac98 RDI: ffff8880089a8b00
[   40.972360][  T313] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   40.972877][  T313] R10: ffffffffadfec1e7 R11: ffff8880089a8040 R12: 0000000000000000
[   40.973380][  T313] R13: ffff88800d29a128 R14: ffff88800d29a008 R15: ffff88800d29a000
[   40.973895][  T313] FS:  00007f0ebe1f5800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   40.974496][  T313] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.974917][  T313] CR2: 000000000041ecd0 CR3: 000000000252c004 CR4: 0000000000772ef0
[   40.975433][  T313] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   40.975942][  T313] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   40.976666][  T313] PKRU: 55555554
[   40.976935][  T313] Call Trace:
[   40.977195][  T313]  <TASK>
[ 40.977382][ T313] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 40.977752][ T313] ? __warn (kernel/panic.c:748) 
[ 40.978024][ T313] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 40.978393][ T313] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 40.978767][ T313] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 40.979032][ T313] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 40.979361][ T313] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 40.979743][ T313] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 40.980090][ T313] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 40.980485][ T313] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 40.980937][ T313] ? _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) 
[ 40.981286][ T313] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 40.981537][ T313] register_netdevice (net/core/dev.c:11003) 
[ 40.981751][ T313] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 40.981967][ T313] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 40.982252][ T313] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 40.982555][ T313] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 40.982827][ T313] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 40.983169][ T313] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 40.983468][ T313] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 40.983729][ T313] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 40.984005][ T313] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 40.984286][ T313] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 40.984523][ T313] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 40.984788][ T313] devlink_reload (net/devlink/dev.c:474) 
[ 40.984999][ T313] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 40.985207][ T313] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 40.985500][ T313] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 40.985712][ T313] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 40.985965][ T313] ? __nla_parse (lib/nlattr.c:732) 
[ 40.986185][ T313] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 40.986399][ T313] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 40.986688][ T313] ? cap_capable (security/commoncap.c:131) 
[ 40.986893][ T313] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 40.987104][ T313] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 40.987314][ T313] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 40.987545][ T313] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 40.987796][ T313] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 40.988046][ T313] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 40.988310][ T313] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 40.988543][ T313] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 40.988748][ T313] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 40.988952][ T313] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 40.989171][ T313] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 40.989328][ T313] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 40.989638][ T313] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 40.989991][ T313] genl_rcv (net/netlink/genetlink.c:1220) 
[ 40.990257][ T313] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 40.990629][ T313] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 40.990998][ T313] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 40.991359][ T313] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 40.991733][ T313] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 40.992076][ T313] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 40.992439][ T313] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 40.992800][ T313] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 40.993146][ T313] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 40.993528][ T313] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 40.993863][ T313] ? 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) 
[ 40.994252][ T313] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 40.994679][ T313] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 40.995045][ T313] ? 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) 
[ 40.995425][ T313] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 40.995790][ T313] __x64_sys_sendto (net/socket.c:2181) 
[ 40.996143][ T313] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 40.996592][ T313] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 40.996948][ T313] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   40.997378][  T313] RIP: 0033:0x7f0ebe401a4a
[ 40.997759][ T313] 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
[   40.998934][  T313] RSP: 002b:00007ffe8d6cf1f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   40.999475][  T313] RAX: ffffffffffffffda RBX: 000000000bbd1b00 RCX: 00007f0ebe401a4a
[   40.999988][  T313] RDX: 0000000000000034 RSI: 000000000bbd1b00 RDI: 0000000000000005
[   41.000516][  T313] RBP: 000000000bbd1910 R08: 00007f0ebe5a5200 R09: 000000000000000c
[   41.001030][  T313] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   41.001548][  T313] R13: 000000000bbd1910 R14: 0000000000000000 R15: 0000000000000001
| [   41.017344][  T313] ------------[ cut here ]------------
| [ 41.017661][ T313] WARNING: CPU: 2 PID: 313 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) 
| [   41.018068][  T313] Modules linked in: netdevsim
| [   41.018658][  T313] Tainted: [W]=WARN
[   41.018828][  T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.019079][ T313] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 41.019343][ T313] 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
[   41.020050][  T313] RSP: 0018:ffffc900006b71e8 EFLAGS: 00010246
[   41.020315][  T313] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   41.020645][  T313] RDX: 0000000000000000 RSI: ffff88800e54ac98 RDI: ffff8880089a8b00
[   41.020975][  T313] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   41.021285][  T313] R10: ffffffffadfec1e7 R11: ffff8880089a8040 R12: 0000000000000000
[   41.021643][  T313] R13: ffff88800e54a128 R14: ffff88800e54a008 R15: ffff88800e54a000
[   41.021951][  T313] FS:  00007f0ebe1f5800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   41.022303][  T313] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.022605][  T313] CR2: 000000000041ecd0 CR3: 000000000252c004 CR4: 0000000000772ef0
[   41.022918][  T313] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   41.023231][  T313] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   41.023560][  T313] PKRU: 55555554
[   41.023721][  T313] Call Trace:
[   41.023879][  T313]  <TASK>
[ 41.023991][ T313] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 41.024208][ T313] ? __warn (kernel/panic.c:748) 
[ 41.024376][ T313] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 41.024634][ T313] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 41.025025][ T313] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 41.025192][ T313] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 41.025406][ T313] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 41.025677][ T313] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 41.025892][ T313] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 41.026218][ T313] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 41.026729][ T313] ? _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) 
[ 41.026954][ T313] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 41.027165][ T313] register_netdevice (net/core/dev.c:11003) 
[ 41.027386][ T313] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 41.027735][ T313] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 41.027954][ T313] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 41.028215][ T313] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 41.028512][ T313] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 41.028792][ T313] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 41.029055][ T313] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 41.029317][ T313] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 41.029596][ T313] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 41.029908][ T313] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 41.030131][ T313] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 41.030439][ T313] devlink_reload (net/devlink/dev.c:474) 
[ 41.030791][ T313] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 41.031140][ T313] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 41.031564][ T313] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 41.031935][ T313] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 41.032384][ T313] ? __nla_parse (lib/nlattr.c:732) 
[ 41.032774][ T313] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 41.033138][ T313] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 41.033835][ T313] ? cap_capable (security/commoncap.c:131) 
[ 41.034197][ T313] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 41.034592][ T313] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 41.034958][ T313] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 41.035319][ T313] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 41.035783][ T313] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 41.036214][ T313] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 41.036698][ T313] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 41.037063][ T313] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 41.037429][ T313] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 41.037800][ T313] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 41.038395][ T313] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 41.038689][ T313] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 41.039053][ T313] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 41.039446][ T313] genl_rcv (net/netlink/genetlink.c:1220) 
[ 41.039731][ T313] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 41.040100][ T313] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 41.040486][ T313] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 41.040861][ T313] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 41.041221][ T313] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 41.041595][ T313] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 41.041979][ T313] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 41.042352][ T313] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 41.042730][ T313] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 41.043111][ T313] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 41.043683][ T313] ? 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) 
[ 41.044022][ T313] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 41.044604][ T313] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 41.044956][ T313] ? 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) 
[ 41.045306][ T313] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 41.045670][ T313] __x64_sys_sendto (net/socket.c:2181) 
[ 41.045983][ T313] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 41.046399][ T313] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 41.046772][ T313] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.047188][  T313] RIP: 0033:0x7f0ebe401a4a
[ 41.047562][ T313] Code: Unable to access opcode bytes at 0x7f0ebe401a20.

Code starting with the faulting instruction
===========================================
[   41.048038][  T313] RSP: 002b:00007ffe8d6cf1f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   41.048764][  T313] RAX: ffffffffffffffda RBX: 000000000bbd1b00 RCX: 00007f0ebe401a4a
[   41.049275][  T313] RDX: 0000000000000034 RSI: 000000000bbd1b00 RDI: 0000000000000005
[   41.050016][  T313] RBP: 000000000bbd1910 R08: 00007f0ebe5a5200 R09: 000000000000000c
[   41.050403][  T313] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   41.050979][  T313] R13: 000000000bbd1910 R14: 0000000000000000 R15: 0000000000000001
| [   41.085569][  T313] ------------[ cut here ]------------
| [ 41.085987][ T313] WARNING: CPU: 2 PID: 313 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) 
| [   41.086698][  T313] Modules linked in: netdevsim
| [   41.087572][  T313] Tainted: [W]=WARN
[   41.087838][  T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.088266][ T313] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 41.088718][ T313] 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
[   41.089866][  T313] RSP: 0018:ffffc900006b71e8 EFLAGS: 00010246
[   41.090311][  T313] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   41.090862][  T313] RDX: 0000000000000000 RSI: ffff8880093bac98 RDI: ffff8880089a8b00
[   41.091360][  T313] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   41.091876][  T313] R10: ffffffffadfec1e7 R11: ffff8880089a8040 R12: 0000000000000000
[   41.092379][  T313] R13: ffff8880093ba128 R14: ffff8880093ba008 R15: ffff8880093ba000
[   41.092904][  T313] FS:  00007f0ebe1f5800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   41.093515][  T313] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.093933][  T313] CR2: 00007f0ebe401a20 CR3: 000000000252c004 CR4: 0000000000772ef0
[   41.094438][  T313] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   41.094947][  T313] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   41.095444][  T313] PKRU: 55555554
[   41.095711][  T313] Call Trace:
[   41.095974][  T313]  <TASK>
[ 41.096162][ T313] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 41.096521][ T313] ? __warn (kernel/panic.c:748) 
[ 41.096793][ T313] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 41.097138][ T313] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 41.097521][ T313] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 41.097795][ T313] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 41.098146][ T313] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 41.098528][ T313] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 41.098873][ T313] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 41.099240][ T313] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 41.099699][ T313] ? _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) 
[ 41.100223][ T313] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 41.100500][ T313] register_netdevice (net/core/dev.c:11003) 
[ 41.100788][ T313] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 41.101171][ T313] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 41.101517][ T313] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 41.101866][ T313] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 41.102161][ T313] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 41.102473][ T313] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 41.102756][ T313] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 41.103030][ T313] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 41.103299][ T313] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 41.103611][ T313] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 41.103833][ T313] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 41.104123][ T313] devlink_reload (net/devlink/dev.c:474) 
[ 41.104349][ T313] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 41.104602][ T313] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 41.104879][ T313] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 41.105109][ T313] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 41.105379][ T313] ? __nla_parse (lib/nlattr.c:732) 
[ 41.105631][ T313] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 41.105852][ T313] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 41.106134][ T313] ? cap_capable (security/commoncap.c:131) 
[ 41.106355][ T313] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 41.106616][ T313] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 41.106843][ T313] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 41.107061][ T313] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 41.107329][ T313] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 41.107612][ T313] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 41.107894][ T313] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 41.108116][ T313] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 41.108333][ T313] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 41.108589][ T313] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 41.108823][ T313] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 41.108994][ T313] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 41.109216][ T313] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 41.109467][ T313] genl_rcv (net/netlink/genetlink.c:1220) 
[ 41.109642][ T313] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 41.109857][ T313] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 41.110076][ T313] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 41.110297][ T313] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 41.110635][ T313] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 41.111007][ T313] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 41.111250][ T313] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 41.111507][ T313] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 41.111726][ T313] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 41.111952][ T313] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 41.112178][ T313] ? 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) 
[ 41.112397][ T313] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 41.112645][ T313] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 41.112867][ T313] ? 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) 
[ 41.113088][ T313] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 41.113306][ T313] __x64_sys_sendto (net/socket.c:2181) 
[ 41.113534][ T313] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 41.113802][ T313] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 41.114016][ T313] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.114283][  T313] RIP: 0033:0x7f0ebe401a4a
[ 41.114516][ T313] Code: Unable to access opcode bytes at 0x7f0ebe401a20.

Code starting with the faulting instruction
===========================================
[   41.114793][  T313] RSP: 002b:00007ffe8d6cf1f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   41.115130][  T313] RAX: ffffffffffffffda RBX: 000000000bbd1b00 RCX: 00007f0ebe401a4a
[   41.115474][  T313] RDX: 0000000000000034 RSI: 000000000bbd1b00 RDI: 0000000000000005
[   41.115810][  T313] RBP: 000000000bbd1910 R08: 00007f0ebe5a5200 R09: 000000000000000c
[   41.116130][  T313] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   41.116478][  T313] R13: 000000000bbd1910 R14: 0000000000000000 R15: 0000000000000001
| [   41.129698][  T313] ------------[ cut here ]------------
| [ 41.129962][ T313] WARNING: CPU: 2 PID: 313 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) 
| [   41.130357][  T313] Modules linked in: netdevsim
| [   41.131007][  T313] Tainted: [W]=WARN
[   41.131166][  T313] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.131426][ T313] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 41.131702][ T313] 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
[   41.132439][  T313] RSP: 0018:ffffc900006b71e8 EFLAGS: 00010246
[   41.132723][  T313] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   41.133033][  T313] RDX: 0000000000000000 RSI: ffff88800d142c98 RDI: ffff8880089a8b00
[   41.133344][  T313] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   41.133672][  T313] R10: ffffffffadfec1e7 R11: ffff8880089a8040 R12: 0000000000000000
[   41.133977][  T313] R13: ffff88800d142128 R14: ffff88800d142008 R15: ffff88800d142000
[   41.134275][  T313] FS:  00007f0ebe1f5800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   41.134641][  T313] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.134920][  T313] CR2: 00007f0ebe401a20 CR3: 000000000252c004 CR4: 0000000000772ef0
[   41.135234][  T313] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   41.135565][  T313] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   41.135875][  T313] PKRU: 55555554
[   41.136048][  T313] Call Trace:
[   41.136208][  T313]  <TASK>
[ 41.136319][ T313] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 41.136541][ T313] ? __warn (kernel/panic.c:748) 
[ 41.136718][ T313] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 41.136923][ T313] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 41.137147][ T313] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 41.137311][ T313] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 41.137532][ T313] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 41.137772][ T313] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 41.137994][ T313] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 41.138210][ T313] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 41.138512][ T313] ? _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) 
[ 41.138734][ T313] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 41.138957][ T313] register_netdevice (net/core/dev.c:11003) 
[ 41.139172][ T313] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 41.139423][ T313] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 41.139710][ T313] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 41.140015][ T313] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 41.140311][ T313] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 41.140627][ T313] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 41.140941][ T313] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 41.141236][ T313] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 41.141526][ T313] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 41.141813][ T313] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 41.142051][ T313] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 41.142356][ T313] devlink_reload (net/devlink/dev.c:474) 
[ 41.142623][ T313] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 41.142865][ T313] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 41.143160][ T313] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 41.143402][ T313] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 41.143711][ T313] ? __nla_parse (lib/nlattr.c:732) 
[ 41.143953][ T313] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 41.144190][ T313] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 41.144506][ T313] ? cap_capable (security/commoncap.c:131) 
[ 41.144741][ T313] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 41.144988][ T313] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 41.145233][ T313] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 41.145485][ T313] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 41.145778][ T313] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 41.146037][ T313] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 41.146310][ T313] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 41.146540][ T313] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 41.146756][ T313] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 41.146995][ T313] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 41.147238][ T313] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 41.147434][ T313] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 41.147668][ T313] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 41.147901][ T313] genl_rcv (net/netlink/genetlink.c:1220) 
[ 41.148063][ T313] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 41.148282][ T313] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 41.148510][ T313] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 41.148735][ T313] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 41.148943][ T313] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 41.149141][ T313] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 41.149349][ T313] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 41.149584][ T313] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 41.149805][ T313] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 41.150038][ T313] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 41.150259][ T313] ? 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) 
[ 41.150503][ T313] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 41.150717][ T313] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 41.150977][ T313] ? 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) 
[ 41.151190][ T313] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 41.151397][ T313] __x64_sys_sendto (net/socket.c:2181) 
[ 41.151618][ T313] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 41.151884][ T313] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 41.152089][ T313] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.152351][  T313] RIP: 0033:0x7f0ebe401a4a
[ 41.152590][ T313] Code: Unable to access opcode bytes at 0x7f0ebe401a20.

Code starting with the faulting instruction
===========================================
[   41.152855][  T313] RSP: 002b:00007ffe8d6cf1f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   41.153151][  T313] RAX: ffffffffffffffda RBX: 000000000bbd1b00 RCX: 00007f0ebe401a4a
[   41.153460][  T313] RDX: 0000000000000034 RSI: 000000000bbd1b00 RDI: 0000000000000005
[   41.153754][  T313] RBP: 000000000bbd1910 R08: 00007f0ebe5a5200 R09: 000000000000000c
[   41.154039][  T313] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   41.154329][  T313] R13: 000000000bbd1910 R14: 0000000000000000 R15: 0000000000000001
| [   43.887717][  T405] ------------[ cut here ]------------
| [ 43.888182][ T405] WARNING: CPU: 2 PID: 405 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) 
| [   43.888896][  T405] Modules linked in: netdevsim
| [   43.889885][  T405] Tainted: [W]=WARN
[   43.890165][  T405] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 43.890647][ T405] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 43.891152][ T405] 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
[   43.892359][  T405] RSP: 0018:ffffc90000b871e8 EFLAGS: 00010246
[   43.892827][  T405] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   43.893347][  T405] RDX: 0000000000000000 RSI: ffff88800b55ac98 RDI: ffff88800e772dc0
[   43.893887][  T405] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   43.894429][  T405] R10: ffffffffadfec1e7 R11: ffff88800e772300 R12: 0000000000000000
[   43.894955][  T405] R13: ffff88800b55a128 R14: ffff88800b55a008 R15: ffff88800b55a000
[   43.895595][  T405] FS:  00007fb978350800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   43.896198][  T405] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.896669][  T405] CR2: 000055d3a899edec CR3: 0000000005070001 CR4: 0000000000772ef0
[   43.897178][  T405] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   43.897725][  T405] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   43.898248][  T405] PKRU: 55555554
[   43.898549][  T405] Call Trace:
[   43.898830][  T405]  <TASK>
[ 43.899028][ T405] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 43.899404][ T405] ? __warn (kernel/panic.c:748) 
[ 43.899713][ T405] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 43.900091][ T405] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 43.900479][ T405] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 43.900759][ T405] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 43.901135][ T405] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 43.901538][ T405] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 43.901895][ T405] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 43.902244][ T405] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 43.902683][ T405] ? _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) 
[ 43.903028][ T405] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 43.903379][ T405] register_netdevice (net/core/dev.c:11003) 
[ 43.903742][ T405] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 43.904090][ T405] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 43.904459][ T405] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 43.904851][ T405] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 43.905293][ T405] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 43.905733][ T405] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 43.906159][ T405] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 43.906597][ T405] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 43.906991][ T405] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 43.907438][ T405] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 43.907765][ T405] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 43.908197][ T405] devlink_reload (net/devlink/dev.c:474) 
[ 43.908541][ T405] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 43.908883][ T405] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 43.909302][ T405] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 43.909647][ T405] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 43.910034][ T405] ? __nla_parse (lib/nlattr.c:732) 
[ 43.910379][ T405] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 43.910733][ T405] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 43.911187][ T405] ? cap_capable (security/commoncap.c:131) 
[ 43.911534][ T405] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 43.911873][ T405] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 43.912204][ T405] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 43.912548][ T405] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 43.912941][ T405] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 43.913337][ T405] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 43.913762][ T405] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 43.914092][ T405] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 43.914450][ T405] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 43.914808][ T405] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 43.915198][ T405] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 43.915504][ T405] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 43.915865][ T405] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 43.916224][ T405] genl_rcv (net/netlink/genetlink.c:1220) 
[ 43.916512][ T405] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 43.916869][ T405] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 43.917217][ T405] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 43.917588][ T405] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 43.917950][ T405] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 43.918293][ T405] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 43.918873][ T405] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 43.919468][ T405] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 43.920043][ T405] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 43.920434][ T405] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 43.920800][ T405] ? 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) 
[ 43.921383][ T405] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 43.921976][ T405] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 43.922333][ T405] ? 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) 
[ 43.922721][ T405] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 43.923072][ T405] __x64_sys_sendto (net/socket.c:2181) 
[ 43.923647][ T405] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 43.924071][ T405] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 43.924441][ T405] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   43.925289][  T405] RIP: 0033:0x7fb97855ca4a
[ 43.925647][ T405] 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
[   43.927019][  T405] RSP: 002b:00007ffd94674f98 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   43.927548][  T405] RAX: ffffffffffffffda RBX: 000000002fef6b00 RCX: 00007fb97855ca4a
[   43.928263][  T405] RDX: 0000000000000034 RSI: 000000002fef6b00 RDI: 0000000000000005
[   43.928785][  T405] RBP: 000000002fef6910 R08: 00007fb978700200 R09: 000000000000000c
[   43.929481][  T405] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   43.930004][  T405] R13: 000000002fef6910 R14: 0000000000000000 R15: 0000000000000001
| [   43.959459][  T405] ------------[ cut here ]------------
| [ 43.959728][ T405] WARNING: CPU: 2 PID: 405 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) 
| [   43.960147][  T405] Modules linked in: netdevsim
| [   43.960736][  T405] Tainted: [W]=WARN
[   43.960909][  T405] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 43.961171][ T405] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 43.961446][ T405] 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
[   43.962125][  T405] RSP: 0018:ffffc90000b871e8 EFLAGS: 00010246
[   43.962376][  T405] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   43.962679][  T405] RDX: 0000000000000000 RSI: ffff888004eaac98 RDI: ffff88800e772dc0
[   43.962994][  T405] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   43.963288][  T405] R10: ffffffffadfec1e7 R11: ffff88800e772300 R12: 0000000000000000
[   43.963597][  T405] R13: ffff888004eaa128 R14: ffff888004eaa008 R15: ffff888004eaa000
[   43.963892][  T405] FS:  00007fb978350800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   43.964250][  T405] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.964515][  T405] CR2: 000055d3a899edec CR3: 0000000005070001 CR4: 0000000000772ef0
[   43.964818][  T405] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   43.965119][  T405] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   43.965428][  T405] PKRU: 55555554
[   43.965591][  T405] Call Trace:
[   43.965760][  T405]  <TASK>
[ 43.965874][ T405] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 43.966175][ T405] ? __warn (kernel/panic.c:748) 
[ 43.966341][ T405] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 43.966568][ T405] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 43.966786][ T405] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 43.966964][ T405] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 43.967185][ T405] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 43.967423][ T405] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 43.967640][ T405] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 43.967850][ T405] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 43.968128][ T405] ? _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) 
[ 43.968339][ T405] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 43.968570][ T405] register_netdevice (net/core/dev.c:11003) 
[ 43.968793][ T405] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 43.969028][ T405] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 43.969246][ T405] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 43.969522][ T405] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 43.969794][ T405] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 43.970076][ T405] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 43.970334][ T405] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 43.970604][ T405] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 43.970865][ T405] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 43.971131][ T405] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 43.971344][ T405] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 43.971643][ T405] devlink_reload (net/devlink/dev.c:474) 
[ 43.971855][ T405] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 43.972153][ T405] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 43.972620][ T405] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 43.972978][ T405] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 43.973424][ T405] ? __nla_parse (lib/nlattr.c:732) 
[ 43.973796][ T405] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 43.974055][ T405] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 43.974321][ T405] ? cap_capable (security/commoncap.c:131) 
[ 43.974577][ T405] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 43.974788][ T405] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 43.975016][ T405] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 43.975229][ T405] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 43.975506][ T405] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 43.975765][ T405] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 43.976045][ T405] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 43.976261][ T405] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 43.976472][ T405] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 43.976690][ T405] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 43.976918][ T405] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 43.977094][ T405] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 43.977301][ T405] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 43.977523][ T405] genl_rcv (net/netlink/genetlink.c:1220) 
[ 43.977687][ T405] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 43.977896][ T405] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 43.978116][ T405] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 43.978326][ T405] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 43.978553][ T405] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 43.978756][ T405] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 43.978975][ T405] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 43.979202][ T405] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 43.979431][ T405] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 43.979659][ T405] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 43.979871][ T405] ? 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) 
[ 43.980095][ T405] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 43.980309][ T405] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 43.980528][ T405] ? 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) 
[ 43.980793][ T405] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 43.981067][ T405] __x64_sys_sendto (net/socket.c:2181) 
[ 43.981372][ T405] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 43.981674][ T405] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 43.981878][ T405] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   43.982166][  T405] RIP: 0033:0x7fb97855ca4a
[ 43.982387][ T405] Code: Unable to access opcode bytes at 0x7fb97855ca20.

Code starting with the faulting instruction
===========================================
[   43.982657][  T405] RSP: 002b:00007ffd94674f98 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   43.982975][  T405] RAX: ffffffffffffffda RBX: 000000002fef6b00 RCX: 00007fb97855ca4a
[   43.983275][  T405] RDX: 0000000000000034 RSI: 000000002fef6b00 RDI: 0000000000000005
[   43.983592][  T405] RBP: 000000002fef6910 R08: 00007fb978700200 R09: 000000000000000c
[   43.983884][  T405] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   43.984174][  T405] R13: 000000002fef6910 R14: 0000000000000000 R15: 0000000000000001
| [   43.996977][  T405] ------------[ cut here ]------------
| [ 43.997222][ T405] WARNING: CPU: 2 PID: 405 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) 
| [   43.997639][  T405] Modules linked in: netdevsim
| [   43.998205][  T405] Tainted: [W]=WARN
[   43.998362][  T405] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 43.998619][ T405] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 43.998870][ T405] 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
[   43.999594][  T405] RSP: 0018:ffffc90000b871e8 EFLAGS: 00010246
[   43.999859][  T405] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   44.000149][  T405] RDX: 0000000000000000 RSI: ffff888009c3ac98 RDI: ffff88800e772dc0
[   44.000447][  T405] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   44.000736][  T405] R10: ffffffffadfec1e7 R11: ffff88800e772300 R12: 0000000000000000
[   44.001035][  T405] R13: ffff888009c3a128 R14: ffff888009c3a008 R15: ffff888009c3a000
[   44.001329][  T405] FS:  00007fb978350800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   44.001671][  T405] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.001919][  T405] CR2: 00007fb97855ca20 CR3: 0000000005070001 CR4: 0000000000772ef0
[   44.002211][  T405] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   44.002586][  T405] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   44.002882][  T405] PKRU: 55555554
[   44.003070][  T405] Call Trace:
[   44.003228][  T405]  <TASK>
[ 44.003337][ T405] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.003560][ T405] ? __warn (kernel/panic.c:748) 
[ 44.003721][ T405] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.003923][ T405] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 44.004266][ T405] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 44.004557][ T405] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 44.004827][ T405] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 44.005048][ T405] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.005257][ T405] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 44.005479][ T405] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 44.005737][ T405] ? _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) 
[ 44.005944][ T405] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 44.006166][ T405] register_netdevice (net/core/dev.c:11003) 
[ 44.006376][ T405] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 44.006599][ T405] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 44.006821][ T405] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 44.007080][ T405] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 44.007346][ T405] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 44.007624][ T405] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 44.007882][ T405] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 44.008141][ T405] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 44.008389][ T405] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 44.008649][ T405] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 44.008858][ T405] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 44.009179][ T405] devlink_reload (net/devlink/dev.c:474) 
[ 44.009394][ T405] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 44.009614][ T405] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 44.009870][ T405] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 44.010080][ T405] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 44.010338][ T405] ? __nla_parse (lib/nlattr.c:732) 
[ 44.010568][ T405] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 44.010775][ T405] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 44.011054][ T405] ? cap_capable (security/commoncap.c:131) 
[ 44.011260][ T405] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 44.011533][ T405] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 44.011755][ T405] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 44.011959][ T405] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 44.012210][ T405] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 44.012468][ T405] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 44.012729][ T405] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 44.012939][ T405] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 44.013177][ T405] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 44.013392][ T405] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 44.013629][ T405] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 44.013788][ T405] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 44.013997][ T405] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 44.014208][ T405] genl_rcv (net/netlink/genetlink.c:1220) 
[ 44.014367][ T405] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 44.014586][ T405] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 44.014796][ T405] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 44.015009][ T405] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 44.015229][ T405] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 44.015442][ T405] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 44.015654][ T405] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 44.015869][ T405] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 44.016079][ T405] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 44.016295][ T405] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 44.016509][ T405] ? 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) 
[ 44.016725][ T405] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 44.016932][ T405] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 44.017175][ T405] ? 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) 
[ 44.017386][ T405] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 44.017605][ T405] __x64_sys_sendto (net/socket.c:2181) 
[ 44.017809][ T405] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 44.018064][ T405] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 44.018275][ T405] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   44.018535][  T405] RIP: 0033:0x7fb97855ca4a
[ 44.018751][ T405] Code: Unable to access opcode bytes at 0x7fb97855ca20.

Code starting with the faulting instruction
===========================================
[   44.019007][  T405] RSP: 002b:00007ffd94674f98 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   44.019305][  T405] RAX: ffffffffffffffda RBX: 000000002fef6b00 RCX: 00007fb97855ca4a
[   44.019609][  T405] RDX: 0000000000000034 RSI: 000000002fef6b00 RDI: 0000000000000005
[   44.019927][  T405] RBP: 000000002fef6910 R08: 00007fb978700200 R09: 000000000000000c
[   44.020224][  T405] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   44.020531][  T405] R13: 000000002fef6910 R14: 0000000000000000 R15: 0000000000000001
| [   44.041203][  T405] ------------[ cut here ]------------
| [ 44.041468][ T405] WARNING: CPU: 2 PID: 405 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) 
| [   44.041859][  T405] Modules linked in: netdevsim
| [   44.042468][  T405] Tainted: [W]=WARN
[   44.042628][  T405] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 44.042873][ T405] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.043131][ T405] 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
[   44.043806][  T405] RSP: 0018:ffffc90000b871e8 EFLAGS: 00010246
[   44.044060][  T405] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   44.044350][  T405] RDX: 0000000000000000 RSI: ffff88800a032c98 RDI: ffff88800e772dc0
[   44.044648][  T405] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   44.044942][  T405] R10: ffffffffadfec1e7 R11: ffff88800e772300 R12: 0000000000000000
[   44.045237][  T405] R13: ffff88800a032128 R14: ffff88800a032008 R15: ffff88800a032000
[   44.045538][  T405] FS:  00007fb978350800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   44.045872][  T405] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.046159][  T405] CR2: 00007fb97855ca20 CR3: 0000000005070001 CR4: 0000000000772ef0
[   44.046471][  T405] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   44.046763][  T405] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   44.047059][  T405] PKRU: 55555554
[   44.047212][  T405] Call Trace:
[   44.047368][  T405]  <TASK>
[ 44.047488][ T405] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.047696][ T405] ? __warn (kernel/panic.c:748) 
[ 44.047858][ T405] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.048065][ T405] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 44.048277][ T405] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 44.048446][ T405] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 44.048651][ T405] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 44.048870][ T405] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.049074][ T405] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 44.049288][ T405] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 44.049552][ T405] ? _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) 
[ 44.049764][ T405] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 44.049970][ T405] register_netdevice (net/core/dev.c:11003) 
[ 44.050180][ T405] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 44.050397][ T405] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 44.050634][ T405] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 44.050902][ T405] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 44.051203][ T405] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 44.051484][ T405] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 44.051746][ T405] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 44.052006][ T405] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 44.052257][ T405] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 44.052520][ T405] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 44.052723][ T405] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 44.052992][ T405] devlink_reload (net/devlink/dev.c:474) 
[ 44.053206][ T405] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 44.053430][ T405] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 44.053693][ T405] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 44.053897][ T405] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 44.054151][ T405] ? __nla_parse (lib/nlattr.c:732) 
[ 44.054368][ T405] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 44.054589][ T405] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 44.054853][ T405] ? cap_capable (security/commoncap.c:131) 
[ 44.055105][ T405] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 44.055319][ T405] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 44.055546][ T405] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 44.055754][ T405] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 44.056008][ T405] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 44.056254][ T405] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 44.056536][ T405] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 44.056743][ T405] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 44.056949][ T405] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 44.057155][ T405] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 44.057375][ T405] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 44.057543][ T405] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 44.057754][ T405] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 44.057965][ T405] genl_rcv (net/netlink/genetlink.c:1220) 
[ 44.058130][ T405] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 44.058342][ T405] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 44.058557][ T405] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 44.058768][ T405] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 44.058981][ T405] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 44.059226][ T405] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 44.059445][ T405] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 44.059665][ T405] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 44.059875][ T405] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 44.060095][ T405] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 44.060298][ T405] ? 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) 
[ 44.060520][ T405] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 44.060729][ T405] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 44.060959][ T405] ? 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) 
[ 44.061173][ T405] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 44.061383][ T405] __x64_sys_sendto (net/socket.c:2181) 
[ 44.061597][ T405] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 44.061845][ T405] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 44.062051][ T405] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   44.062298][  T405] RIP: 0033:0x7fb97855ca4a
[ 44.062523][ T405] Code: Unable to access opcode bytes at 0x7fb97855ca20.

Code starting with the faulting instruction
===========================================
[   44.062783][  T405] RSP: 002b:00007ffd94674f98 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   44.063117][  T405] RAX: ffffffffffffffda RBX: 000000002fef6b00 RCX: 00007fb97855ca4a
[   44.063429][  T405] RDX: 0000000000000034 RSI: 000000002fef6b00 RDI: 0000000000000005
[   44.063725][  T405] RBP: 000000002fef6910 R08: 00007fb978700200 R09: 000000000000000c
[   44.064019][  T405] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   44.064318][  T405] R13: 000000002fef6910 R14: 0000000000000000 R15: 0000000000000001
| [   44.453442][  T418] ------------[ cut here ]------------
| [ 44.453702][ T418] WARNING: CPU: 0 PID: 418 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) 
| [   44.454086][  T418] Modules linked in: netdevsim
| [   44.454671][  T418] Tainted: [W]=WARN
[   44.454836][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 44.455071][ T418] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.455317][ T418] 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
[   44.456011][  T418] RSP: 0018:ffffc90000bc71e8 EFLAGS: 00010246
[   44.456259][  T418] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   44.456589][  T418] RDX: 0000000000000000 RSI: ffff888009b12c98 RDI: ffff8880089a8b00
[   44.456870][  T418] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   44.457156][  T418] R10: ffffffffadfec1e7 R11: ffff8880089a8040 R12: 0000000000000000
[   44.457451][  T418] R13: ffff888009b12128 R14: ffff888009b12008 R15: ffff888009b12000
[   44.457737][  T418] FS:  00007f37d1074800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   44.458068][  T418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.458323][  T418] CR2: 00005624c06c6148 CR3: 0000000008fe4001 CR4: 0000000000772ef0
[   44.458616][  T418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   44.458900][  T418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   44.459184][  T418] PKRU: 55555554
[   44.459341][  T418] Call Trace:
[   44.459496][  T418]  <TASK>
[ 44.459599][ T418] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.459792][ T418] ? __warn (kernel/panic.c:748) 
[ 44.459939][ T418] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.460131][ T418] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 44.460331][ T418] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 44.460504][ T418] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 44.460696][ T418] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 44.460919][ T418] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.461115][ T418] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 44.461329][ T418] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 44.461580][ T418] ? _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) 
[ 44.461778][ T418] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 44.461984][ T418] register_netdevice (net/core/dev.c:11003) 
[ 44.462183][ T418] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 44.462383][ T418] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 44.462613][ T418] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 44.462903][ T418] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 44.463183][ T418] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 44.463477][ T418] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 44.463739][ T418] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 44.463987][ T418] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 44.464252][ T418] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 44.464531][ T418] ? nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1651) netdevsim 
[ 44.464800][ T418] devlink_reload (net/devlink/dev.c:474) 
[ 44.465009][ T418] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 44.465214][ T418] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 44.465480][ T418] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 44.465680][ T418] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 44.465932][ T418] ? __nla_parse (lib/nlattr.c:732) 
[ 44.466149][ T418] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 44.466359][ T418] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 44.466638][ T418] ? cap_capable (security/commoncap.c:131) 
[ 44.466837][ T418] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 44.467047][ T418] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 44.467254][ T418] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 44.467467][ T418] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 44.467717][ T418] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 44.467966][ T418] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 44.468227][ T418] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 44.468441][ T418] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 44.468646][ T418] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 44.468852][ T418] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 44.469071][ T418] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 44.469244][ T418] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 44.469460][ T418] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 44.469662][ T418] genl_rcv (net/netlink/genetlink.c:1220) 
[ 44.469806][ T418] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 44.470003][ T418] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 44.470195][ T418] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 44.470394][ T418] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 44.470603][ T418] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 44.470807][ T418] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 44.471004][ T418] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 44.471206][ T418] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 44.471405][ T418] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 44.471617][ T418] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 44.471808][ T418] ? 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) 
[ 44.472004][ T418] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 44.472200][ T418] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 44.472398][ T418] ? 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) 
[ 44.472604][ T418] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 44.472804][ T418] __x64_sys_sendto (net/socket.c:2181) 
[ 44.472998][ T418] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 44.473236][ T418] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 44.473437][ T418] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   44.473674][  T418] RIP: 0033:0x7f37d1280a4a
[ 44.473889][ T418] 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
[   44.474619][  T418] RSP: 002b:00007ffe8e45da78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   44.474906][  T418] RAX: ffffffffffffffda RBX: 0000000038726b00 RCX: 00007f37d1280a4a
[   44.475202][  T418] RDX: 0000000000000034 RSI: 0000000038726b00 RDI: 0000000000000005
[   44.475510][  T418] RBP: 0000000038726910 R08: 00007f37d1424200 R09: 000000000000000c
[   44.475792][  T418] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   44.476073][  T418] R13: 0000000038726910 R14: 0000000000000000 R15: 0000000000000001
| [   44.487761][  T418] ------------[ cut here ]------------
| [ 44.487991][ T418] WARNING: CPU: 0 PID: 418 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) 
| [   44.488367][  T418] Modules linked in: netdevsim
| [   44.489759][  T418] Tainted: [W]=WARN
[   44.489922][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 44.490155][ T418] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.490394][ T418] 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
[   44.491169][  T418] RSP: 0018:ffffc90000bc71e8 EFLAGS: 00010246
[   44.491513][  T418] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   44.491793][  T418] RDX: 0000000000000000 RSI: ffff88800d2d2c98 RDI: ffff8880089a8b00
[   44.492084][  T418] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   44.492372][  T418] R10: ffffffffadfec1e7 R11: ffff8880089a8040 R12: 0000000000000000
[   44.492763][  T418] R13: ffff88800d2d2128 R14: ffff88800d2d2008 R15: ffff88800d2d2000
[   44.493060][  T418] FS:  00007f37d1074800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   44.493389][  T418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.493735][  T418] CR2: 00005624c06c6148 CR3: 0000000008fe4001 CR4: 0000000000772ef0
[   44.494022][  T418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   44.494297][  T418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   44.494665][  T418] PKRU: 55555554
[   44.494809][  T418] Call Trace:
[   44.494963][  T418]  <TASK>
[ 44.495062][ T418] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.495265][ T418] ? __warn (kernel/panic.c:748) 
[ 44.495504][ T418] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.495700][ T418] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 44.495909][ T418] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 44.496057][ T418] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 44.496245][ T418] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 44.496531][ T418] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.496750][ T418] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 44.496954][ T418] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 44.497205][ T418] ? _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) 
[ 44.497507][ T418] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 44.497710][ T418] register_netdevice (net/core/dev.c:11003) 
[ 44.497906][ T418] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 44.498120][ T418] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 44.498332][ T418] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 44.498667][ T418] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 44.498939][ T418] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 44.499186][ T418] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 44.499528][ T418] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 44.499768][ T418] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 44.499997][ T418] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 44.500245][ T418] ? nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1651) netdevsim 
[ 44.500580][ T418] devlink_reload (net/devlink/dev.c:474) 
[ 44.500795][ T418] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 44.501004][ T418] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 44.501256][ T418] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 44.501542][ T418] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 44.501781][ T418] ? __nla_parse (lib/nlattr.c:732) 
[ 44.501984][ T418] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 44.502177][ T418] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 44.502530][ T418] ? cap_capable (security/commoncap.c:131) 
[ 44.502726][ T418] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 44.502935][ T418] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 44.503134][ T418] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 44.503336][ T418] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 44.503664][ T418] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 44.503904][ T418] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 44.504169][ T418] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 44.504364][ T418] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 44.504642][ T418] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 44.504851][ T418] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 44.505055][ T418] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 44.505201][ T418] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 44.505406][ T418] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 44.505699][ T418] genl_rcv (net/netlink/genetlink.c:1220) 
[ 44.505846][ T418] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 44.506054][ T418] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 44.506255][ T418] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 44.506551][ T418] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 44.506761][ T418] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 44.506962][ T418] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 44.507162][ T418] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 44.507364][ T418] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 44.507646][ T418] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 44.507870][ T418] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 44.508057][ T418] ? 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) 
[ 44.508252][ T418] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 44.508542][ T418] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 44.508740][ T418] ? 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) 
[ 44.508952][ T418] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 44.509146][ T418] __x64_sys_sendto (net/socket.c:2181) 
[ 44.509441][ T418] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 44.509682][ T418] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 44.509879][ T418] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   44.510117][  T418] RIP: 0033:0x7f37d1280a4a
[ 44.510405][ T418] Code: Unable to access opcode bytes at 0x7f37d1280a20.

Code starting with the faulting instruction
===========================================
[   44.510843][  T418] RSP: 002b:00007ffe8e45da78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   44.511137][  T418] RAX: ffffffffffffffda RBX: 0000000038726b00 RCX: 00007f37d1280a4a
[   44.511508][  T418] RDX: 0000000000000034 RSI: 0000000038726b00 RDI: 0000000000000005
[   44.511792][  T418] RBP: 0000000038726910 R08: 00007f37d1424200 R09: 000000000000000c
[   44.512080][  T418] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   44.512363][  T418] R13: 0000000038726910 R14: 0000000000000000 R15: 0000000000000001
| [   44.525555][  T418] ------------[ cut here ]------------
| [ 44.525770][ T418] WARNING: CPU: 0 PID: 418 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) 
| [   44.526151][  T418] Modules linked in: netdevsim
| [   44.526693][  T418] Tainted: [W]=WARN
[   44.526841][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 44.527078][ T418] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.527322][ T418] 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
[   44.528012][  T418] RSP: 0018:ffffc90000bc71e8 EFLAGS: 00010246
[   44.528253][  T418] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   44.528583][  T418] RDX: 0000000000000000 RSI: ffff8880099fac98 RDI: ffff8880089a8b00
[   44.528879][  T418] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   44.529174][  T418] R10: ffffffffadfec1e7 R11: ffff8880089a8040 R12: 0000000000000000
[   44.529463][  T418] R13: ffff8880099fa128 R14: ffff8880099fa008 R15: ffff8880099fa000
[   44.529747][  T418] FS:  00007f37d1074800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   44.530078][  T418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.530335][  T418] CR2: 00007f37d1280a20 CR3: 0000000008fe4001 CR4: 0000000000772ef0
[   44.530632][  T418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   44.530931][  T418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   44.531226][  T418] PKRU: 55555554
[   44.531369][  T418] Call Trace:
[   44.531538][  T418]  <TASK>
[ 44.531637][ T418] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.531827][ T418] ? __warn (kernel/panic.c:748) 
[ 44.531972][ T418] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.532172][ T418] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 44.532372][ T418] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 44.532532][ T418] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 44.532736][ T418] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 44.532941][ T418] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.533134][ T418] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 44.533338][ T418] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 44.533589][ T418] ? _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) 
[ 44.533799][ T418] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 44.534016][ T418] register_netdevice (net/core/dev.c:11003) 
[ 44.534223][ T418] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 44.534442][ T418] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 44.534665][ T418] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 44.534925][ T418] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 44.535195][ T418] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 44.535481][ T418] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 44.535727][ T418] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 44.535979][ T418] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 44.536214][ T418] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 44.536463][ T418] ? nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1651) netdevsim 
[ 44.536724][ T418] devlink_reload (net/devlink/dev.c:474) 
[ 44.536945][ T418] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 44.537139][ T418] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 44.537395][ T418] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 44.537614][ T418] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 44.537870][ T418] ? __nla_parse (lib/nlattr.c:732) 
[ 44.538073][ T418] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 44.538290][ T418] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 44.538565][ T418] ? cap_capable (security/commoncap.c:131) 
[ 44.538768][ T418] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 44.538969][ T418] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 44.539179][ T418] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 44.539372][ T418] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 44.539618][ T418] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 44.539852][ T418] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 44.540102][ T418] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 44.540297][ T418] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 44.540493][ T418] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 44.540689][ T418] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 44.540910][ T418] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 44.541061][ T418] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 44.541256][ T418] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 44.541469][ T418] genl_rcv (net/netlink/genetlink.c:1220) 
[ 44.541616][ T418] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 44.541812][ T418] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 44.542011][ T418] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 44.542213][ T418] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 44.542419][ T418] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 44.542624][ T418] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 44.542822][ T418] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 44.543024][ T418] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 44.543221][ T418] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 44.543436][ T418] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 44.543627][ T418] ? 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) 
[ 44.543822][ T418] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 44.544024][ T418] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 44.544223][ T418] ? 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) 
[ 44.544432][ T418] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 44.544634][ T418] __x64_sys_sendto (net/socket.c:2181) 
[ 44.544825][ T418] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 44.545183][ T418] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 44.545504][ T418] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   44.545745][  T418] RIP: 0033:0x7f37d1280a4a
[ 44.546061][ T418] Code: Unable to access opcode bytes at 0x7f37d1280a20.

Code starting with the faulting instruction
===========================================
[   44.546298][  T418] RSP: 002b:00007ffe8e45da78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   44.546589][  T418] RAX: ffffffffffffffda RBX: 0000000038726b00 RCX: 00007f37d1280a4a
[   44.546983][  T418] RDX: 0000000000000034 RSI: 0000000038726b00 RDI: 0000000000000005
[   44.547267][  T418] RBP: 0000000038726910 R08: 00007f37d1424200 R09: 000000000000000c
[   44.547557][  T418] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   44.547953][  T418] R13: 0000000038726910 R14: 0000000000000000 R15: 0000000000000001
| [   44.572984][  T418] ------------[ cut here ]------------
| [ 44.573218][ T418] WARNING: CPU: 0 PID: 418 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) 
| [   44.574025][  T418] Modules linked in: netdevsim
| [   44.574593][  T418] Tainted: [W]=WARN
[   44.574739][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 44.574991][ T418] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.575237][ T418] 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
[   44.575924][  T418] RSP: 0000:ffffc90000bc71e8 EFLAGS: 00010246
[   44.576161][  T418] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   44.576498][  T418] RDX: 0000000000000000 RSI: ffff888004f8ac98 RDI: ffff8880089a8b00
[   44.576783][  T418] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   44.577079][  T418] R10: ffffffffadfec1e7 R11: ffff8880089a8040 R12: 0000000000000000
[   44.577360][  T418] R13: ffff888004f8a128 R14: ffff888004f8a008 R15: ffff888004f8a000
[   44.577652][  T418] FS:  00007f37d1074800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   44.577977][  T418] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.578211][  T418] CR2: 00007f0751e77380 CR3: 0000000008fe4001 CR4: 0000000000772ef0
[   44.578502][  T418] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   44.578781][  T418] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   44.579092][  T418] PKRU: 55555554
[   44.579238][  T418] Call Trace:
[   44.579379][  T418]  <TASK>
[ 44.579484][ T418] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.579671][ T418] ? __warn (kernel/panic.c:748) 
[ 44.579816][ T418] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.580003][ T418] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 44.580199][ T418] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 44.580363][ T418] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 44.580564][ T418] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 44.580766][ T418] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.580978][ T418] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 44.581173][ T418] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 44.581425][ T418] ? _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) 
[ 44.581623][ T418] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 44.581831][ T418] register_netdevice (net/core/dev.c:11003) 
[ 44.582030][ T418] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 44.582231][ T418] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 44.582456][ T418] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 44.582709][ T418] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 44.582960][ T418] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 44.583222][ T418] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 44.583481][ T418] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 44.583724][ T418] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 44.583958][ T418] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 44.584204][ T418] ? nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1651) netdevsim 
[ 44.584470][ T418] devlink_reload (net/devlink/dev.c:474) 
[ 44.584666][ T418] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 44.584859][ T418] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 44.585102][ T418] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 44.585297][ T418] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 44.585559][ T418] ? __nla_parse (lib/nlattr.c:732) 
[ 44.585760][ T418] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 44.585964][ T418] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 44.586213][ T418] ? cap_capable (security/commoncap.c:131) 
[ 44.586403][ T418] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 44.586608][ T418] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 44.586801][ T418] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 44.586990][ T418] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 44.587223][ T418] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 44.587468][ T418] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 44.587728][ T418] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 44.587921][ T418] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 44.588108][ T418] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 44.588301][ T418] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 44.588525][ T418] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 44.588670][ T418] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 44.588865][ T418] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 44.589060][ T418] genl_rcv (net/netlink/genetlink.c:1220) 
[ 44.589203][ T418] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 44.589419][ T418] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 44.589612][ T418] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 44.589807][ T418] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 44.590011][ T418] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 44.590210][ T418] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 44.590398][ T418] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 44.590603][ T418] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 44.590806][ T418] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 44.591007][ T418] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 44.591208][ T418] ? 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) 
[ 44.591400][ T418] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 44.591603][ T418] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 44.591800][ T418] ? 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) 
[ 44.591999][ T418] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 44.592195][ T418] __x64_sys_sendto (net/socket.c:2181) 
[ 44.592383][ T418] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 44.592623][ T418] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 44.592815][ T418] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   44.593046][  T418] RIP: 0033:0x7f37d1280a4a
[ 44.593248][ T418] Code: Unable to access opcode bytes at 0x7f37d1280a20.

Code starting with the faulting instruction
===========================================
[   44.593494][  T418] RSP: 002b:00007ffe8e45da78 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   44.593795][  T418] RAX: ffffffffffffffda RBX: 0000000038726b00 RCX: 00007f37d1280a4a
[   44.594078][  T418] RDX: 0000000000000034 RSI: 0000000038726b00 RDI: 0000000000000005
[   44.594362][  T418] RBP: 0000000038726910 R08: 00007f37d1424200 R09: 000000000000000c
[   44.594647][  T418] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   44.594930][  T418] R13: 0000000038726910 R14: 0000000000000000 R15: 0000000000000001
| [   44.976381][  T431] ------------[ cut here ]------------
| [ 44.976663][ T431] WARNING: CPU: 2 PID: 431 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) 
| [   44.977093][  T431] Modules linked in: netdevsim
| [   44.977679][  T431] Tainted: [W]=WARN
[   44.977847][  T431] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 44.978106][ T431] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.978374][ T431] 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
[   44.979071][  T431] RSP: 0018:ffffc90000bb71e8 EFLAGS: 00010246
[   44.979326][  T431] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   44.979633][  T431] RDX: 0000000000000000 RSI: ffff8880061f2c98 RDI: ffff88800ab55080
[   44.979932][  T431] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   44.980229][  T431] R10: ffffffffadfec1e7 R11: ffff88800ab545c0 R12: 0000000000000000
[   44.980535][  T431] R13: ffff8880061f2128 R14: ffff8880061f2008 R15: ffff8880061f2000
[   44.980841][  T431] FS:  00007fd052978800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   44.981192][  T431] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.981462][  T431] CR2: 00007f075238f400 CR3: 000000000a9e0004 CR4: 0000000000772ef0
[   44.981766][  T431] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   44.982069][  T431] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   44.982370][  T431] PKRU: 55555554
[   44.982537][  T431] Call Trace:
[   44.982697][  T431]  <TASK>
[ 44.982814][ T431] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.983021][ T431] ? __warn (kernel/panic.c:748) 
[ 44.983205][ T431] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.983424][ T431] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 44.983648][ T431] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 44.983831][ T431] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 44.984039][ T431] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 44.984264][ T431] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 44.984494][ T431] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 44.984718][ T431] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 44.984984][ T431] ? _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) 
[ 44.985198][ T431] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 44.985426][ T431] register_netdevice (net/core/dev.c:11003) 
[ 44.985655][ T431] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 44.985887][ T431] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 44.986113][ T431] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 44.986396][ T431] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 44.986683][ T431] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 44.986953][ T431] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 44.987227][ T431] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 44.987499][ T431] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 44.987874][ T431] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 44.988250][ T431] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 44.988705][ T431] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 44.989096][ T431] devlink_reload (net/devlink/dev.c:474) 
[ 44.989436][ T431] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 44.989653][ T431] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 44.990033][ T431] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 44.990247][ T431] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 44.990552][ T431] ? __nla_parse (lib/nlattr.c:732) 
[ 44.990799][ T431] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 44.991044][ T431] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 44.991337][ T431] ? cap_capable (security/commoncap.c:131) 
[ 44.991569][ T431] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 44.991795][ T431] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 44.992019][ T431] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 44.992242][ T431] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 44.992519][ T431] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 44.992786][ T431] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 44.993068][ T431] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 44.993406][ T431] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 44.993634][ T431] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 44.993857][ T431] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 44.994074][ T431] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 44.994345][ T431] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 44.994559][ T431] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 44.994776][ T431] genl_rcv (net/netlink/genetlink.c:1220) 
[ 44.994932][ T431] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 44.995257][ T431] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 44.995470][ T431] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 44.995681][ T431] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 44.995887][ T431] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 44.996204][ T431] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 44.996419][ T431] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 44.996633][ T431] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 44.996838][ T431] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 44.997166][ T431] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 44.997368][ T431] ? 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) 
[ 44.997583][ T431] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 44.997788][ T431] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 44.998104][ T431] ? 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) 
[ 44.998317][ T431] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 44.998533][ T431] __x64_sys_sendto (net/socket.c:2181) 
[ 44.998736][ T431] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 44.999096][ T431] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 44.999302][ T431] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   44.999559][  T431] RIP: 0033:0x7fd052b84a4a
[ 44.999770][ T431] 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
[   45.000565][  T431] RSP: 002b:00007ffe59f2f168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   45.000995][  T431] RAX: ffffffffffffffda RBX: 000000003d3cdb00 RCX: 00007fd052b84a4a
[   45.001290][  T431] RDX: 0000000000000034 RSI: 000000003d3cdb00 RDI: 0000000000000005
[   45.001593][  T431] RBP: 000000003d3cd910 R08: 00007fd052d28200 R09: 000000000000000c
[   45.001998][  T431] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   45.002293][  T431] R13: 000000003d3cd910 R14: 0000000000000000 R15: 0000000000000001
| [   45.016325][  T431] ------------[ cut here ]------------
| [ 45.016576][ T431] WARNING: CPU: 3 PID: 431 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) 
| [   45.016950][  T431] Modules linked in: netdevsim
| [   45.017581][  T431] Tainted: [W]=WARN
[   45.017726][  T431] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 45.017959][ T431] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.018203][ T431] 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
[   45.018875][  T431] RSP: 0018:ffffc90000bb71e8 EFLAGS: 00010246
[   45.019112][  T431] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   45.019388][  T431] RDX: 0000000000000000 RSI: ffff888008e9ac98 RDI: ffff88800ab55080
[   45.019681][  T431] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   45.019964][  T431] R10: ffffffffadfec1e7 R11: ffff88800ab545c0 R12: 0000000000000000
[   45.020246][  T431] R13: ffff888008e9a128 R14: ffff888008e9a008 R15: ffff888008e9a000
[   45.020531][  T431] FS:  00007fd052978800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   45.020879][  T431] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.021128][  T431] CR2: 00005624e2f8b820 CR3: 000000000a9e0001 CR4: 0000000000772ef0
[   45.021420][  T431] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   45.021697][  T431] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   45.021972][  T431] PKRU: 55555554
[   45.022113][  T431] Call Trace:
[   45.022260][  T431]  <TASK>
[ 45.022357][ T431] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.022604][ T431] ? __warn (kernel/panic.c:748) 
[ 45.022764][ T431] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.022972][ T431] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 45.023184][ T431] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 45.023340][ T431] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 45.023555][ T431] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 45.023776][ T431] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.023985][ T431] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 45.024194][ T431] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 45.024463][ T431] ? _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) 
[ 45.024675][ T431] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 45.024869][ T431] register_netdevice (net/core/dev.c:11003) 
[ 45.025063][ T431] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 45.025270][ T431] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 45.025485][ T431] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 45.025736][ T431] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 45.025990][ T431] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 45.026248][ T431] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 45.026499][ T431] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 45.026746][ T431] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 45.026982][ T431] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 45.027217][ T431] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 45.027406][ T431] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 45.027664][ T431] devlink_reload (net/devlink/dev.c:474) 
[ 45.027858][ T431] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 45.028060][ T431] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 45.028330][ T431] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 45.028552][ T431] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 45.028812][ T431] ? __nla_parse (lib/nlattr.c:732) 
[ 45.029024][ T431] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 45.029233][ T431] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 45.029504][ T431] ? cap_capable (security/commoncap.c:131) 
[ 45.029713][ T431] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 45.029924][ T431] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 45.030138][ T431] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 45.030344][ T431] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 45.030606][ T431] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 45.030866][ T431] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 45.031134][ T431] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 45.031340][ T431] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 45.031555][ T431] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 45.031765][ T431] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 45.031985][ T431] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 45.032140][ T431] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 45.032348][ T431] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 45.032569][ T431] genl_rcv (net/netlink/genetlink.c:1220) 
[ 45.032726][ T431] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 45.032937][ T431] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 45.033146][ T431] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 45.033342][ T431] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 45.033549][ T431] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 45.033738][ T431] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 45.033933][ T431] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 45.034139][ T431] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 45.034330][ T431] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 45.034540][ T431] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 45.034728][ T431] ? 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) 
[ 45.034919][ T431] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 45.035116][ T431] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 45.035309][ T431] ? 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) 
[ 45.035510][ T431] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 45.035703][ T431] __x64_sys_sendto (net/socket.c:2181) 
[ 45.035894][ T431] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 45.036127][ T431] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 45.036323][ T431] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   45.036581][  T431] RIP: 0033:0x7fd052b84a4a
[ 45.036791][ T431] 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
[   45.037503][  T431] RSP: 002b:00007ffe59f2f168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   45.037812][  T431] RAX: ffffffffffffffda RBX: 000000003d3cdb00 RCX: 00007fd052b84a4a
[   45.038112][  T431] RDX: 0000000000000034 RSI: 000000003d3cdb00 RDI: 0000000000000005
[   45.038426][  T431] RBP: 000000003d3cd910 R08: 00007fd052d28200 R09: 000000000000000c
[   45.038899][  T431] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   45.039198][  T431] R13: 000000003d3cd910 R14: 0000000000000000 R15: 0000000000000001
| [   45.066679][  T431] ------------[ cut here ]------------
| [ 45.067071][ T431] WARNING: CPU: 3 PID: 431 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) 
| [   45.067716][  T431] Modules linked in: netdevsim
| [   45.068357][  T431] Tainted: [W]=WARN
[   45.068575][  T431] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 45.068944][ T431] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.069346][ T431] 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
[   45.070366][  T431] RSP: 0018:ffffc90000bb71e8 EFLAGS: 00010246
[   45.070666][  T431] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   45.070980][  T431] RDX: 0000000000000000 RSI: ffff88800a262c98 RDI: ffff88800ab55080
[   45.071340][  T431] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   45.071768][  T431] R10: ffffffffadfec1e7 R11: ffff88800ab545c0 R12: 0000000000000000
[   45.072089][  T431] R13: ffff88800a262128 R14: ffff88800a262008 R15: ffff88800a262000
[   45.072484][  T431] FS:  00007fd052978800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   45.072953][  T431] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.073248][  T431] CR2: 00005624e2f8b820 CR3: 000000000a9e0001 CR4: 0000000000772ef0
[   45.073548][  T431] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   45.073895][  T431] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   45.074243][  T431] PKRU: 55555554
[   45.074388][  T431] Call Trace:
[   45.074586][  T431]  <TASK>
[ 45.074731][ T431] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.074947][ T431] ? __warn (kernel/panic.c:748) 
[ 45.075104][ T431] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.075303][ T431] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 45.075511][ T431] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 45.075724][ T431] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 45.075914][ T431] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 45.076120][ T431] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.076310][ T431] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 45.076521][ T431] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 45.076774][ T431] ? _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) 
[ 45.077036][ T431] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 45.077229][ T431] register_netdevice (net/core/dev.c:11003) 
[ 45.077439][ T431] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 45.077664][ T431] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 45.077919][ T431] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 45.078266][ T431] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 45.078551][ T431] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 45.078916][ T431] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 45.079215][ T431] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 45.079574][ T431] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 45.079918][ T431] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 45.080172][ T431] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 45.080375][ T431] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 45.080664][ T431] devlink_reload (net/devlink/dev.c:474) 
[ 45.080885][ T431] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 45.081091][ T431] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 45.081360][ T431] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 45.081587][ T431] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 45.081843][ T431] ? __nla_parse (lib/nlattr.c:732) 
[ 45.082055][ T431] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 45.082264][ T431] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 45.082531][ T431] ? cap_capable (security/commoncap.c:131) 
[ 45.082749][ T431] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 45.082950][ T431] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 45.083148][ T431] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 45.083338][ T431] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 45.083593][ T431] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 45.083864][ T431] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 45.084108][ T431] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 45.084305][ T431] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 45.084500][ T431] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 45.084699][ T431] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 45.084900][ T431] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 45.085043][ T431] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 45.085247][ T431] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 45.085450][ T431] genl_rcv (net/netlink/genetlink.c:1220) 
[ 45.085603][ T431] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 45.085818][ T431] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 45.086025][ T431] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 45.086235][ T431] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 45.086450][ T431] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 45.086680][ T431] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 45.086885][ T431] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 45.087124][ T431] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 45.087366][ T431] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 45.087630][ T431] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 45.087848][ T431] ? 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) 
[ 45.088058][ T431] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 45.088284][ T431] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 45.088585][ T431] ? 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) 
[ 45.088814][ T431] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 45.089028][ T431] __x64_sys_sendto (net/socket.c:2181) 
[ 45.089263][ T431] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 45.089653][ T431] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 45.089862][ T431] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   45.090170][  T431] RIP: 0033:0x7fd052b84a4a
[ 45.090385][ T431] 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
[   45.091199][  T431] RSP: 002b:00007ffe59f2f168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   45.091521][  T431] RAX: ffffffffffffffda RBX: 000000003d3cdb00 RCX: 00007fd052b84a4a
[   45.091877][  T431] RDX: 0000000000000034 RSI: 000000003d3cdb00 RDI: 0000000000000005
[   45.092213][  T431] RBP: 000000003d3cd910 R08: 00007fd052d28200 R09: 000000000000000c
[   45.092516][  T431] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   45.092864][  T431] R13: 000000003d3cd910 R14: 0000000000000000 R15: 0000000000000001
| [   45.104972][  T431] ------------[ cut here ]------------
| [ 45.105251][ T431] WARNING: CPU: 3 PID: 431 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) 
| [   45.106549][  T431] Modules linked in: netdevsim
| [   45.107119][  T431] Tainted: [W]=WARN
[   45.107290][  T431] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 45.107654][ T431] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.107972][ T431] 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
[   45.109113][  T431] RSP: 0018:ffffc90000bb71e8 EFLAGS: 00010246
[   45.109537][  T431] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   45.109829][  T431] RDX: 0000000000000000 RSI: ffff8880051aac98 RDI: ffff88800ab55080
[   45.110114][  T431] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   45.110400][  T431] R10: ffffffffadfec1e7 R11: ffff88800ab545c0 R12: 0000000000000000
[   45.110793][  T431] R13: ffff8880051aa128 R14: ffff8880051aa008 R15: ffff8880051aa000
[   45.111082][  T431] FS:  00007fd052978800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   45.111404][  T431] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.111760][  T431] CR2: 00005624e2f8b820 CR3: 000000000a9e0001 CR4: 0000000000772ef0
[   45.112046][  T431] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   45.112328][  T431] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   45.112734][  T431] PKRU: 55555554
[   45.112879][  T431] Call Trace:
[   45.113022][  T431]  <TASK>
[ 45.113125][ T431] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.113314][ T431] ? __warn (kernel/panic.c:748) 
[ 45.113552][ T431] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.113799][ T431] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 45.113995][ T431] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 45.114140][ T431] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 45.114327][ T431] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 45.114629][ T431] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.114823][ T431] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 45.115024][ T431] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 45.115316][ T431] ? _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) 
[ 45.115617][ T431] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 45.115831][ T431] register_netdevice (net/core/dev.c:11003) 
[ 45.116055][ T431] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 45.116286][ T431] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 45.116673][ T431] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 45.116934][ T431] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 45.117191][ T431] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 45.117524][ T431] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 45.117866][ T431] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 45.118165][ T431] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 45.118566][ T431] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 45.118848][ T431] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 45.119097][ T431] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 45.119348][ T431] devlink_reload (net/devlink/dev.c:474) 
[ 45.119655][ T431] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 45.119848][ T431] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 45.120096][ T431] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 45.120286][ T431] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 45.120638][ T431] ? __nla_parse (lib/nlattr.c:732) 
[ 45.120863][ T431] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 45.121072][ T431] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 45.121385][ T431] ? cap_capable (security/commoncap.c:131) 
[ 45.121716][ T431] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 45.121937][ T431] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 45.122144][ T431] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 45.122363][ T431] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 45.122779][ T431] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 45.123036][ T431] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 45.123299][ T431] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 45.123606][ T431] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 45.123817][ T431] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 45.124023][ T431] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 45.124239][ T431] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 45.124395][ T431] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 45.124712][ T431] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 45.124927][ T431] genl_rcv (net/netlink/genetlink.c:1220) 
[ 45.125081][ T431] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 45.125293][ T431] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 45.125603][ T431] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 45.125835][ T431] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 45.126026][ T431] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 45.126215][ T431] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 45.126501][ T431] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 45.126719][ T431] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 45.126911][ T431] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 45.127120][ T431] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 45.127307][ T431] ? 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) 
[ 45.127595][ T431] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 45.127790][ T431] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 45.127980][ T431] ? 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) 
[ 45.128171][ T431] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 45.128362][ T431] __x64_sys_sendto (net/socket.c:2181) 
[ 45.128674][ T431] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 45.128913][ T431] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 45.129120][ T431] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   45.129526][  T431] RIP: 0033:0x7fd052b84a4a
[ 45.129770][ T431] 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
[   45.130574][  T431] RSP: 002b:00007ffe59f2f168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   45.130897][  T431] RAX: ffffffffffffffda RBX: 000000003d3cdb00 RCX: 00007fd052b84a4a
[   45.131199][  T431] RDX: 0000000000000034 RSI: 000000003d3cdb00 RDI: 0000000000000005
[   45.131671][  T431] RBP: 000000003d3cd910 R08: 00007fd052d28200 R09: 000000000000000c
[   45.132043][  T431] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   45.132378][  T431] R13: 000000003d3cd910 R14: 0000000000000000 R15: 0000000000000001
| [   45.726207][  T456] ------------[ cut here ]------------
| [ 45.726452][ T456] WARNING: CPU: 3 PID: 456 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) 
| [   45.726831][  T456] Modules linked in: netdevsim
| [   45.727400][  T456] Tainted: [W]=WARN
[   45.727559][  T456] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 45.727794][ T456] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.728038][ T456] 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
[   45.728714][  T456] RSP: 0018:ffffc90000c771e8 EFLAGS: 00010246
[   45.728954][  T456] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   45.729237][  T456] RDX: 0000000000000000 RSI: ffff88800b51ac98 RDI: ffff88800e462dc0
[   45.729522][  T456] RBP: ffff888009340040 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   45.729801][  T456] R10: ffffffffadfec1e7 R11: ffff88800e462300 R12: 0000000000000000
[   45.730084][  T456] R13: ffff88800b51a128 R14: ffff88800b51a008 R15: ffff88800b51a000
[   45.730364][  T456] FS:  00007f19e73b7800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   45.730695][  T456] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.730945][  T456] CR2: 00007f075224ed40 CR3: 000000000d198002 CR4: 0000000000772ef0
[   45.731225][  T456] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   45.731512][  T456] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   45.731790][  T456] PKRU: 55555554
[   45.731930][  T456] Call Trace:
[   45.732075][  T456]  <TASK>
[ 45.732175][ T456] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.732362][ T456] ? __warn (kernel/panic.c:748) 
[ 45.732522][ T456] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.732712][ T456] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 45.732909][ T456] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 45.733054][ T456] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 45.733242][ T456] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 45.733453][ T456] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.733642][ T456] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 45.733836][ T456] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 45.734074][ T456] ? _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) 
[ 45.734267][ T456] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 45.734470][ T456] register_netdevice (net/core/dev.c:11003) 
[ 45.734662][ T456] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 45.734863][ T456] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 45.735069][ T456] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 45.735312][ T456] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 45.735570][ T456] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 45.735823][ T456] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 45.736065][ T456] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 45.736303][ T456] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 45.736550][ T456] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 45.736796][ T456] devlink_reload (net/devlink/dev.c:474) 
[ 45.736989][ T456] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 45.737179][ T456] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 45.737376][ T456] ? cap_capable (security/commoncap.c:131) 
[ 45.737569][ T456] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 45.737723][ T456] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 45.737915][ T456] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 45.738151][ T456] ? __nla_parse (lib/nlattr.c:732) 
[ 45.738349][ T456] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 45.738554][ T456] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 45.738801][ T456] ? cap_capable (security/commoncap.c:131) 
[ 45.738991][ T456] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 45.739189][ T456] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 45.739383][ T456] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 45.739580][ T456] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 45.739812][ T456] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 45.740043][ T456] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 45.740288][ T456] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 45.740485][ T456] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 45.740672][ T456] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 45.740877][ T456] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 45.741077][ T456] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 45.741221][ T456] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 45.741422][ T456] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 45.741617][ T456] genl_rcv (net/netlink/genetlink.c:1220) 
[ 45.741761][ T456] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 45.741952][ T456] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 45.742145][ T456] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 45.742340][ T456] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 45.742570][ T456] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 45.742772][ T456] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 45.742963][ T456] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 45.743162][ T456] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 45.743353][ T456] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 45.743548][ T456] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 45.743735][ T456] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 45.743933][ T456] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 45.744126][ T456] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 45.744358][ T456] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 45.744556][ T456] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 45.744794][ T456] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 45.744990][ T456] __x64_sys_sendto (net/socket.c:2181) 
[ 45.745179][ T456] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 45.745421][ T456] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 45.745615][ T456] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   45.745847][  T456] RIP: 0033:0x7f19e75c3a4a
[ 45.746040][ T456] 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
[   45.746695][  T456] RSP: 002b:00007fffbef09818 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   45.746988][  T456] RAX: ffffffffffffffda RBX: 000000002acaab00 RCX: 00007f19e75c3a4a
[   45.747274][  T456] RDX: 000000000000003c RSI: 000000002acaab00 RDI: 0000000000000005
[   45.747565][  T456] RBP: 000000002acaa910 R08: 00007f19e7767200 R09: 000000000000000c
[   45.747842][  T456] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   45.748130][  T456] R13: 000000002acaa910 R14: 0000000000000000 R15: 0000000000000001
| [   45.769256][  T456] ------------[ cut here ]------------
| [ 45.769666][ T456] WARNING: CPU: 1 PID: 456 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) 
| [   45.770092][  T456] Modules linked in: netdevsim
| [   45.770761][  T456] Tainted: [W]=WARN
[   45.770968][  T456] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 45.771202][ T456] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.771516][ T456] 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
[   45.772259][  T456] RSP: 0018:ffffc90000c771e8 EFLAGS: 00010246
[   45.772569][  T456] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   45.772924][  T456] RDX: 0000000000000000 RSI: ffff88800e4cac98 RDI: ffff88800e462dc0
[   45.773208][  T456] RBP: ffff888009340040 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   45.773591][  T456] R10: ffffffffadfec1e7 R11: ffff88800e462300 R12: 0000000000000000
[   45.773943][  T456] R13: ffff88800e4ca128 R14: ffff88800e4ca008 R15: ffff88800e4ca000
[   45.774267][  T456] FS:  00007f19e73b7800(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   45.774676][  T456] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.774921][  T456] CR2: 00007f0752160a00 CR3: 000000000d198001 CR4: 0000000000772ef0
[   45.775260][  T456] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   45.775620][  T456] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   45.776017][  T456] PKRU: 55555554
[   45.776222][  T456] Call Trace:
[   45.776442][  T456]  <TASK>
[ 45.776579][ T456] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.776884][ T456] ? __warn (kernel/panic.c:748) 
[ 45.777031][ T456] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.777221][ T456] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 45.777430][ T456] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 45.777586][ T456] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 45.777854][ T456] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 45.778085][ T456] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.778313][ T456] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 45.778569][ T456] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 45.778827][ T456] ? _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) 
[ 45.779020][ T456] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 45.779211][ T456] register_netdevice (net/core/dev.c:11003) 
[ 45.779420][ T456] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 45.779649][ T456] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 45.779854][ T456] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 45.780099][ T456] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 45.780348][ T456] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 45.780743][ T456] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 45.781027][ T456] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 45.781268][ T456] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 45.781512][ T456] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 45.781773][ T456] devlink_reload (net/devlink/dev.c:474) 
[ 45.781966][ T456] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 45.782153][ T456] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 45.782433][ T456] ? cap_capable (security/commoncap.c:131) 
[ 45.782677][ T456] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 45.782829][ T456] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 45.783027][ T456] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 45.783319][ T456] ? __nla_parse (lib/nlattr.c:732) 
[ 45.783583][ T456] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 45.783832][ T456] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 45.784140][ T456] ? cap_capable (security/commoncap.c:131) 
[ 45.784329][ T456] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 45.784624][ T456] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 45.784865][ T456] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 45.785053][ T456] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 45.785285][ T456] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 45.785527][ T456] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 45.785873][ T456] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 45.786092][ T456] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 45.786280][ T456] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 45.786544][ T456] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 45.786852][ T456] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 45.787017][ T456] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 45.787248][ T456] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 45.787520][ T456] genl_rcv (net/netlink/genetlink.c:1220) 
[ 45.787708][ T456] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 45.787901][ T456] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 45.788090][ T456] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 45.788283][ T456] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 45.788556][ T456] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 45.788850][ T456] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 45.789044][ T456] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 45.789249][ T456] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 45.789453][ T456] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 45.789711][ T456] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 45.789899][ T456] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 45.790106][ T456] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 45.790428][ T456] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 45.790696][ T456] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 45.790968][ T456] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 45.791238][ T456] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 45.791480][ T456] __x64_sys_sendto (net/socket.c:2181) 
[ 45.791700][ T456] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 45.792004][ T456] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 45.792193][ T456] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   45.792503][  T456] RIP: 0033:0x7f19e75c3a4a
[ 45.792796][ T456] 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
[   45.793459][  T456] RSP: 002b:00007fffbef09818 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   45.793819][  T456] RAX: ffffffffffffffda RBX: 000000002acaab00 RCX: 00007f19e75c3a4a
[   45.794108][  T456] RDX: 000000000000003c RSI: 000000002acaab00 RDI: 0000000000000005
[   45.794386][  T456] RBP: 000000002acaa910 R08: 00007f19e7767200 R09: 000000000000000c
[   45.794750][  T456] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   45.795090][  T456] R13: 000000002acaa910 R14: 0000000000000000 R15: 0000000000000001
| [   45.809084][  T456] ------------[ cut here ]------------
| [ 45.809293][ T456] WARNING: CPU: 1 PID: 456 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) 
| [   45.809761][  T456] Modules linked in: netdevsim
| [   45.810374][  T456] Tainted: [W]=WARN
[   45.810554][  T456] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 45.810878][ T456] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.811173][ T456] 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
[   45.811934][  T456] RSP: 0018:ffffc90000c771e8 EFLAGS: 00010246
[   45.812236][  T456] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   45.812651][  T456] RDX: 0000000000000000 RSI: ffff88800d302c98 RDI: ffff88800e462dc0
[   45.813049][  T456] RBP: ffff888009340040 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   45.813387][  T456] R10: ffffffffadfec1e7 R11: ffff88800e462300 R12: 0000000000000000
[   45.813695][  T456] R13: ffff88800d302128 R14: ffff88800d302008 R15: ffff88800d302000
[   45.814034][  T456] FS:  00007f19e73b7800(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   45.814362][  T456] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.814621][  T456] CR2: 00007f0752160a00 CR3: 000000000d198001 CR4: 0000000000772ef0
[   45.814901][  T456] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   45.815175][  T456] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   45.815466][  T456] PKRU: 55555554
[   45.815638][  T456] Call Trace:
[   45.815781][  T456]  <TASK>
[ 45.815877][ T456] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.816066][ T456] ? __warn (kernel/panic.c:748) 
[ 45.816210][ T456] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.816399][ T456] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 45.816632][ T456] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 45.816799][ T456] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 45.816995][ T456] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 45.817195][ T456] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.817384][ T456] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 45.817600][ T456] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 45.817913][ T456] ? _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) 
[ 45.818106][ T456] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 45.818297][ T456] register_netdevice (net/core/dev.c:11003) 
[ 45.818520][ T456] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 45.818801][ T456] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 45.819008][ T456] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 45.819251][ T456] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 45.819611][ T456] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 45.819948][ T456] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 45.820315][ T456] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 45.820725][ T456] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 45.821103][ T456] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 45.821549][ T456] devlink_reload (net/devlink/dev.c:474) 
[ 45.821875][ T456] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 45.822104][ T456] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 45.822343][ T456] ? cap_capable (security/commoncap.c:131) 
[ 45.822611][ T456] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 45.822768][ T456] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 45.822960][ T456] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 45.823242][ T456] ? __nla_parse (lib/nlattr.c:732) 
[ 45.823510][ T456] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 45.823748][ T456] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 45.824000][ T456] ? cap_capable (security/commoncap.c:131) 
[ 45.824235][ T456] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 45.824446][ T456] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 45.824689][ T456] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 45.824884][ T456] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 45.825113][ T456] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 45.825350][ T456] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 45.825619][ T456] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 45.825814][ T456] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 45.826001][ T456] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 45.826192][ T456] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 45.826393][ T456] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 45.826550][ T456] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 45.826760][ T456] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 45.826956][ T456] genl_rcv (net/netlink/genetlink.c:1220) 
[ 45.827098][ T456] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 45.827288][ T456] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 45.827487][ T456] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 45.827711][ T456] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 45.827903][ T456] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 45.828088][ T456] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 45.828282][ T456] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 45.828490][ T456] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 45.828692][ T456] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 45.828879][ T456] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 45.829065][ T456] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 45.829263][ T456] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 45.829467][ T456] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 45.829742][ T456] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 45.829933][ T456] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 45.830176][ T456] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 45.830371][ T456] __x64_sys_sendto (net/socket.c:2181) 
[ 45.830580][ T456] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 45.830928][ T456] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 45.831119][ T456] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   45.831360][  T456] RIP: 0033:0x7f19e75c3a4a
[ 45.831573][ T456] 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
[   45.832238][  T456] RSP: 002b:00007fffbef09818 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   45.832539][  T456] RAX: ffffffffffffffda RBX: 000000002acaab00 RCX: 00007f19e75c3a4a
[   45.832831][  T456] RDX: 000000000000003c RSI: 000000002acaab00 RDI: 0000000000000005
[   45.833107][  T456] RBP: 000000002acaa910 R08: 00007f19e7767200 R09: 000000000000000c
[   45.833386][  T456] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   45.833720][  T456] R13: 000000002acaa910 R14: 0000000000000000 R15: 0000000000000001
| [   45.856857][  T456] ------------[ cut here ]------------
| [ 45.857176][ T456] WARNING: CPU: 3 PID: 456 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) 
| [   45.857568][  T456] Modules linked in: netdevsim
| [   45.858094][  T456] Tainted: [W]=WARN
[   45.858240][  T456] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 45.858481][ T456] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.858723][ T456] 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
[   45.859367][  T456] RSP: 0018:ffffc90000c771e8 EFLAGS: 00010246
[   45.859612][  T456] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   45.859893][  T456] RDX: 0000000000000000 RSI: ffff88800e7a2c98 RDI: ffff88800e462dc0
[   45.860168][  T456] RBP: ffff888009340040 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   45.860453][  T456] R10: ffffffffadfec1e7 R11: ffff88800e462300 R12: 0000000000000000
[   45.860735][  T456] R13: ffff88800e7a2128 R14: ffff88800e7a2008 R15: ffff88800e7a2000
[   45.861028][  T456] FS:  00007f19e73b7800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   45.861346][  T456] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.861588][  T456] CR2: 00005624e2f67000 CR3: 000000000d198002 CR4: 0000000000772ef0
[   45.861865][  T456] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   45.862141][  T456] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   45.862427][  T456] PKRU: 55555554
[   45.862570][  T456] Call Trace:
[   45.862714][  T456]  <TASK>
[ 45.862811][ T456] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.862999][ T456] ? __warn (kernel/panic.c:748) 
[ 45.863149][ T456] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.863353][ T456] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 45.863564][ T456] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 45.863710][ T456] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 45.863897][ T456] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 45.864105][ T456] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 45.864294][ T456] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 45.864498][ T456] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 45.864735][ T456] ? _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) 
[ 45.864933][ T456] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 45.865128][ T456] register_netdevice (net/core/dev.c:11003) 
[ 45.865320][ T456] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 45.865526][ T456] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 45.865730][ T456] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 45.865974][ T456] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 45.866226][ T456] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 45.866482][ T456] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 45.866726][ T456] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 45.866965][ T456] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 45.867198][ T456] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 45.867449][ T456] devlink_reload (net/devlink/dev.c:474) 
[ 45.867649][ T456] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 45.867835][ T456] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 45.868024][ T456] ? cap_capable (security/commoncap.c:131) 
[ 45.868211][ T456] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 45.868364][ T456] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 45.868567][ T456] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 45.868804][ T456] ? __nla_parse (lib/nlattr.c:732) 
[ 45.869010][ T456] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 45.869201][ T456] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 45.869453][ T456] ? cap_capable (security/commoncap.c:131) 
[ 45.869638][ T456] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 45.869829][ T456] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 45.870020][ T456] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 45.870209][ T456] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 45.870453][ T456] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 45.870684][ T456] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 45.870937][ T456] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 45.871126][ T456] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 45.871312][ T456] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 45.871515][ T456] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 45.871714][ T456] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 45.871861][ T456] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 45.872051][ T456] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 45.872246][ T456] genl_rcv (net/netlink/genetlink.c:1220) 
[ 45.872387][ T456] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 45.872595][ T456] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 45.872793][ T456] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 45.872987][ T456] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 45.873183][ T456] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 45.873368][ T456] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 45.873569][ T456] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 45.873768][ T456] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 45.873999][ T456] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 45.874186][ T456] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 45.874374][ T456] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 45.874584][ T456] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 45.874784][ T456] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 45.875024][ T456] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 45.875222][ T456] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 45.875466][ T456] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 45.875662][ T456] __x64_sys_sendto (net/socket.c:2181) 
[ 45.875854][ T456] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 45.876090][ T456] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 45.876279][ T456] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   45.876542][  T456] RIP: 0033:0x7f19e75c3a4a
[ 45.876737][ T456] 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
[   45.877387][  T456] RSP: 002b:00007fffbef09818 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   45.877700][  T456] RAX: ffffffffffffffda RBX: 000000002acaab00 RCX: 00007f19e75c3a4a
[   45.878007][  T456] RDX: 000000000000003c RSI: 000000002acaab00 RDI: 0000000000000005
[   45.878283][  T456] RBP: 000000002acaa910 R08: 00007f19e7767200 R09: 000000000000000c
[   45.878576][  T456] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   45.878860][  T456] R13: 000000002acaa910 R14: 0000000000000000 R15: 0000000000000001
| [   46.158615][  T461] ------------[ cut here ]------------
| [ 46.158852][ T461] WARNING: CPU: 0 PID: 461 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) 
| [   46.159244][  T461] Modules linked in: netdevsim
| [   46.159794][  T461] Tainted: [W]=WARN
[   46.159940][  T461] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 46.160177][ T461] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.160451][ T461] 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
[   46.161128][  T461] RSP: 0018:ffffc90000cd71e8 EFLAGS: 00010246
[   46.161373][  T461] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   46.161668][  T461] RDX: 0000000000000000 RSI: ffff888004e3ac98 RDI: ffff888009572dc0
[   46.161959][  T461] RBP: ffff888009341840 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   46.162239][  T461] R10: ffffffffadfec1e7 R11: ffff888009572300 R12: 0000000000000000
[   46.162527][  T461] R13: ffff888004e3a128 R14: ffff888004e3a008 R15: ffff888004e3a000
[   46.162805][  T461] FS:  00007f6013f24800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   46.163132][  T461] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.163371][  T461] CR2: 00007f60142d4200 CR3: 000000000b8c6002 CR4: 0000000000772ef0
[   46.163697][  T461] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   46.163978][  T461] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   46.164253][  T461] PKRU: 55555554
[   46.164396][  T461] Call Trace:
[   46.164561][  T461]  <TASK>
[ 46.164664][ T461] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.164864][ T461] ? __warn (kernel/panic.c:748) 
[ 46.165019][ T461] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.165214][ T461] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 46.165433][ T461] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 46.165579][ T461] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 46.165773][ T461] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 46.165978][ T461] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.166170][ T461] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 46.166371][ T461] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 46.166630][ T461] ? _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) 
[ 46.166825][ T461] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 46.167018][ T461] register_netdevice (net/core/dev.c:11003) 
[ 46.167210][ T461] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 46.167431][ T461] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 46.167642][ T461] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 46.167891][ T461] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 46.168141][ T461] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 46.168388][ T461] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 46.168643][ T461] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 46.168892][ T461] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 46.169130][ T461] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 46.169383][ T461] devlink_reload (net/devlink/dev.c:474) 
[ 46.169589][ T461] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 46.169783][ T461] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 46.169975][ T461] ? cap_capable (security/commoncap.c:131) 
[ 46.170154][ T461] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 46.170314][ T461] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 46.170546][ T461] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 46.170791][ T461] ? __nla_parse (lib/nlattr.c:732) 
[ 46.171001][ T461] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 46.171198][ T461] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 46.171454][ T461] ? cap_capable (security/commoncap.c:131) 
[ 46.171650][ T461] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 46.171851][ T461] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 46.172051][ T461] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 46.172240][ T461] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 46.172484][ T461] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 46.172715][ T461] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 46.172958][ T461] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 46.173148][ T461] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 46.173340][ T461] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 46.173540][ T461] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 46.173750][ T461] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 46.173895][ T461] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 46.174085][ T461] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 46.174289][ T461] genl_rcv (net/netlink/genetlink.c:1220) 
[ 46.174449][ T461] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 46.174643][ T461] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 46.174849][ T461] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 46.175049][ T461] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 46.175248][ T461] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 46.175444][ T461] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 46.175635][ T461] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 46.175831][ T461] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 46.176044][ T461] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 46.176238][ T461] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 46.176437][ T461] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 46.176641][ T461] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 46.176833][ T461] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 46.177067][ T461] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 46.177303][ T461] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 46.177510][ T461] __x64_sys_sendto (net/socket.c:2181) 
[ 46.177711][ T461] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 46.177952][ T461] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 46.178142][ T461] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   46.178375][  T461] RIP: 0033:0x7f6014130a4a
[ 46.178581][ T461] 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
[   46.179248][  T461] RSP: 002b:00007ffd3cf74088 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   46.179542][  T461] RAX: ffffffffffffffda RBX: 000000001e3d5b00 RCX: 00007f6014130a4a
[   46.179820][  T461] RDX: 000000000000003c RSI: 000000001e3d5b00 RDI: 0000000000000005
[   46.180094][  T461] RBP: 000000001e3d5910 R08: 00007f60142d4200 R09: 000000000000000c
[   46.180381][  T461] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   46.180689][  T461] R13: 000000001e3d5910 R14: 0000000000000000 R15: 0000000000000003
| [   46.193624][  T461] ------------[ cut here ]------------
| [ 46.193865][ T461] WARNING: CPU: 3 PID: 461 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) 
| [   46.194238][  T461] Modules linked in: netdevsim
| [   46.194772][  T461] Tainted: [W]=WARN
[   46.194923][  T461] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 46.195154][ T461] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.195393][ T461] 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
[   46.196140][  T461] RSP: 0018:ffffc90000cd71e8 EFLAGS: 00010246
[   46.196377][  T461] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   46.196664][  T461] RDX: 0000000000000000 RSI: ffff88800d1bac98 RDI: ffff888009572dc0
[   46.196941][  T461] RBP: ffff888009341840 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   46.197216][  T461] R10: ffffffffadfec1e7 R11: ffff888009572300 R12: 0000000000000000
[   46.197508][  T461] R13: ffff88800d1ba128 R14: ffff88800d1ba008 R15: ffff88800d1ba000
[   46.197790][  T461] FS:  00007f6013f24800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   46.198110][  T461] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.198347][  T461] CR2: 00005624e2f4f160 CR3: 000000000b8c6006 CR4: 0000000000772ef0
[   46.198643][  T461] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   46.198920][  T461] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   46.199195][  T461] PKRU: 55555554
[   46.199335][  T461] Call Trace:
[   46.199482][  T461]  <TASK>
[ 46.199584][ T461] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.199788][ T461] ? __warn (kernel/panic.c:748) 
[ 46.199940][ T461] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.200150][ T461] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 46.200344][ T461] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 46.200497][ T461] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 46.200687][ T461] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 46.200898][ T461] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.201086][ T461] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 46.201282][ T461] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 46.201528][ T461] ? _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) 
[ 46.201723][ T461] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 46.201913][ T461] register_netdevice (net/core/dev.c:11003) 
[ 46.202105][ T461] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 46.202303][ T461] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 46.202516][ T461] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 46.202767][ T461] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 46.203017][ T461] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 46.203264][ T461] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 46.203522][ T461] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 46.203768][ T461] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 46.204003][ T461] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 46.204247][ T461] devlink_reload (net/devlink/dev.c:474) 
[ 46.204446][ T461] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 46.204636][ T461] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 46.204828][ T461] ? cap_capable (security/commoncap.c:131) 
[ 46.205011][ T461] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 46.205164][ T461] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 46.205361][ T461] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 46.205605][ T461] ? __nla_parse (lib/nlattr.c:732) 
[ 46.205802][ T461] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 46.206001][ T461] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 46.206267][ T461] ? cap_capable (security/commoncap.c:131) 
[ 46.206474][ T461] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 46.206686][ T461] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 46.206895][ T461] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 46.207098][ T461] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 46.207347][ T461] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 46.207603][ T461] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 46.207866][ T461] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 46.208069][ T461] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 46.208281][ T461] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 46.208492][ T461] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 46.208707][ T461] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 46.208861][ T461] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 46.209064][ T461] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 46.209293][ T461] genl_rcv (net/netlink/genetlink.c:1220) 
[ 46.209458][ T461] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 46.209668][ T461] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 46.209877][ T461] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 46.210084][ T461] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 46.210289][ T461] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 46.210484][ T461] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 46.210682][ T461] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 46.210889][ T461] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 46.211078][ T461] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 46.211264][ T461] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 46.211465][ T461] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 46.211669][ T461] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 46.211860][ T461] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 46.212093][ T461] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 46.212329][ T461] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 46.212531][ T461] __x64_sys_sendto (net/socket.c:2181) 
[ 46.212726][ T461] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 46.212958][ T461] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 46.213148][ T461] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   46.213376][  T461] RIP: 0033:0x7f6014130a4a
[ 46.213580][ T461] 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
[   46.214229][  T461] RSP: 002b:00007ffd3cf74088 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   46.214533][  T461] RAX: ffffffffffffffda RBX: 000000001e3d5b00 RCX: 00007f6014130a4a
[   46.214820][  T461] RDX: 000000000000003c RSI: 000000001e3d5b00 RDI: 0000000000000005
[   46.215096][  T461] RBP: 000000001e3d5910 R08: 00007f60142d4200 R09: 000000000000000c
[   46.215378][  T461] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   46.215674][  T461] R13: 000000001e3d5910 R14: 0000000000000000 R15: 0000000000000003
| [   46.226866][  T461] ------------[ cut here ]------------
| [ 46.227082][ T461] WARNING: CPU: 3 PID: 461 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) 
| [   46.228228][  T461] Modules linked in: netdevsim
| [   46.228852][  T461] Tainted: [W]=WARN
[   46.229003][  T461] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 46.229233][ T461] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.229563][ T461] 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
[   46.230217][  T461] RSP: 0018:ffffc90000cd71e8 EFLAGS: 00010246
[   46.230546][  T461] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   46.230839][  T461] RDX: 0000000000000000 RSI: ffff88800511ac98 RDI: ffff888009572dc0
[   46.231117][  T461] RBP: ffff888009341840 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   46.231390][  T461] R10: ffffffffadfec1e7 R11: ffff888009572300 R12: 0000000000000000
[   46.231763][  T461] R13: ffff88800511a128 R14: ffff88800511a008 R15: ffff88800511a000
[   46.232040][  T461] FS:  00007f6013f24800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   46.232359][  T461] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.232683][  T461] CR2: 00005624e2f4f160 CR3: 000000000b8c6006 CR4: 0000000000772ef0
[   46.232964][  T461] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   46.233239][  T461] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   46.233600][  T461] PKRU: 55555554
[   46.233756][  T461] Call Trace:
[   46.233909][  T461]  <TASK>
[ 46.234013][ T461] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.234216][ T461] ? __warn (kernel/panic.c:748) 
[ 46.234376][ T461] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.234665][ T461] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 46.234875][ T461] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 46.235029][ T461] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 46.235228][ T461] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 46.235524][ T461] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.235731][ T461] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 46.235941][ T461] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 46.236201][ T461] ? _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) 
[ 46.236495][ T461] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 46.236704][ T461] register_netdevice (net/core/dev.c:11003) 
[ 46.236912][ T461] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 46.237125][ T461] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 46.237341][ T461] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 46.237695][ T461] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 46.237967][ T461] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 46.238215][ T461] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 46.238542][ T461] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 46.238783][ T461] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 46.239020][ T461] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 46.239271][ T461] devlink_reload (net/devlink/dev.c:474) 
[ 46.239564][ T461] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 46.239755][ T461] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 46.239947][ T461] ? cap_capable (security/commoncap.c:131) 
[ 46.240134][ T461] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 46.240287][ T461] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 46.240570][ T461] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 46.240820][ T461] ? __nla_parse (lib/nlattr.c:732) 
[ 46.241019][ T461] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 46.241209][ T461] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 46.241546][ T461] ? cap_capable (security/commoncap.c:131) 
[ 46.241751][ T461] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 46.241959][ T461] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 46.242171][ T461] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 46.242376][ T461] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 46.242708][ T461] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 46.242959][ T461] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 46.243223][ T461] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 46.243512][ T461] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 46.243714][ T461] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 46.243928][ T461] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 46.244145][ T461] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 46.244300][ T461] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 46.244596][ T461] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 46.244809][ T461] genl_rcv (net/netlink/genetlink.c:1220) 
[ 46.244962][ T461] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 46.245171][ T461] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 46.245380][ T461] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 46.245674][ T461] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 46.245885][ T461] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 46.246072][ T461] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 46.246262][ T461] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 46.246544][ T461] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 46.246736][ T461] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 46.246922][ T461] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 46.247123][ T461] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 46.247321][ T461] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 46.247599][ T461] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 46.247840][ T461] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 46.248078][ T461] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 46.248272][ T461] __x64_sys_sendto (net/socket.c:2181) 
[ 46.248554][ T461] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 46.248790][ T461] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 46.248980][ T461] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   46.249214][  T461] RIP: 0033:0x7f6014130a4a
[ 46.249491][ T461] 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
[   46.250160][  T461] RSP: 002b:00007ffd3cf74088 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   46.250555][  T461] RAX: ffffffffffffffda RBX: 000000001e3d5b00 RCX: 00007f6014130a4a
[   46.250871][  T461] RDX: 000000000000003c RSI: 000000001e3d5b00 RDI: 0000000000000005
[   46.251171][  T461] RBP: 000000001e3d5910 R08: 00007f60142d4200 R09: 000000000000000c
[   46.251562][  T461] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   46.251865][  T461] R13: 000000001e3d5910 R14: 0000000000000000 R15: 0000000000000003
| [   46.263399][  T461] ------------[ cut here ]------------
| [ 46.263666][ T461] WARNING: CPU: 1 PID: 461 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) 
| [   46.264045][  T461] Modules linked in: netdevsim
| [   46.264586][  T461] Tainted: [W]=WARN
[   46.264738][  T461] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 46.264973][ T461] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.265217][ T461] 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
[   46.265902][  T461] RSP: 0018:ffffc90000cd71e8 EFLAGS: 00010246
[   46.266145][  T461] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   46.266439][  T461] RDX: 0000000000000000 RSI: ffff88800d27ac98 RDI: ffff888009572dc0
[   46.266728][  T461] RBP: ffff888009341840 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   46.267002][  T461] R10: ffffffffadfec1e7 R11: ffff888009572300 R12: 0000000000000000
[   46.267282][  T461] R13: ffff88800d27a128 R14: ffff88800d27a008 R15: ffff88800d27a000
[   46.267573][  T461] FS:  00007f6013f24800(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   46.267894][  T461] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.268127][  T461] CR2: 000055d3b4809af8 CR3: 000000000b8c6004 CR4: 0000000000772ef0
[   46.268424][  T461] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   46.268722][  T461] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   46.269013][  T461] PKRU: 55555554
[   46.269168][  T461] Call Trace:
[   46.269335][  T461]  <TASK>
[ 46.269536][ T461] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.269774][ T461] ? __warn (kernel/panic.c:748) 
[ 46.269931][ T461] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.270144][ T461] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 46.270355][ T461] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 46.270574][ T461] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 46.270803][ T461] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 46.271018][ T461] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.271221][ T461] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 46.271437][ T461] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 46.271696][ T461] ? _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) 
[ 46.271904][ T461] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 46.272104][ T461] register_netdevice (net/core/dev.c:11003) 
[ 46.272308][ T461] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 46.272531][ T461] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 46.272745][ T461] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 46.273004][ T461] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 46.273267][ T461] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 46.273547][ T461] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 46.273799][ T461] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 46.274046][ T461] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 46.274301][ T461] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 46.274580][ T461] devlink_reload (net/devlink/dev.c:474) 
[ 46.274785][ T461] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 46.274982][ T461] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 46.275183][ T461] ? cap_capable (security/commoncap.c:131) 
[ 46.275376][ T461] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 46.275538][ T461] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 46.275752][ T461] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 46.276006][ T461] ? __nla_parse (lib/nlattr.c:732) 
[ 46.276203][ T461] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 46.276418][ T461] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 46.276695][ T461] ? cap_capable (security/commoncap.c:131) 
[ 46.276893][ T461] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 46.277102][ T461] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 46.277300][ T461] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 46.277499][ T461] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 46.277734][ T461] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 46.277965][ T461] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 46.278209][ T461] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 46.278400][ T461] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 46.278598][ T461] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 46.278792][ T461] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 46.278993][ T461] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 46.279136][ T461] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 46.279328][ T461] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 46.279530][ T461] genl_rcv (net/netlink/genetlink.c:1220) 
[ 46.279673][ T461] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 46.279865][ T461] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 46.280060][ T461] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 46.280255][ T461] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 46.280456][ T461] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 46.280644][ T461] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 46.280842][ T461] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 46.281038][ T461] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 46.281229][ T461] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 46.281425][ T461] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 46.281617][ T461] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 46.281816][ T461] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 46.282009][ T461] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 46.282242][ T461] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 46.282487][ T461] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 46.282682][ T461] __x64_sys_sendto (net/socket.c:2181) 
[ 46.282871][ T461] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 46.283110][ T461] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 46.283300][ T461] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   46.283564][  T461] RIP: 0033:0x7f6014130a4a
[ 46.283771][ T461] 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
[   46.284469][  T461] RSP: 002b:00007ffd3cf74088 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   46.284776][  T461] RAX: ffffffffffffffda RBX: 000000001e3d5b00 RCX: 00007f6014130a4a
[   46.285062][  T461] RDX: 000000000000003c RSI: 000000001e3d5b00 RDI: 0000000000000005
[   46.285339][  T461] RBP: 000000001e3d5910 R08: 00007f60142d4200 R09: 000000000000000c
[   46.285641][  T461] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   46.285924][  T461] R13: 000000001e3d5910 R14: 0000000000000000 R15: 0000000000000003
| [   46.490669][   T66] ------------[ cut here ]------------
| [ 46.490974][ T66] WARNING: CPU: 0 PID: 66 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) 
| [   46.491323][   T66] Modules linked in: netdevsim
| [   46.491973][   T66] Tainted: [W]=WARN
[   46.492115][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.492329][   T66] Workqueue: netns cleanup_net
[ 46.492542][ T66] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.492768][ T66] 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
[   46.493406][   T66] RSP: 0018:ffffc90000477620 EFLAGS: 00010246
[   46.493634][   T66] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   46.493923][   T66] RDX: 0000000000000000 RSI: ffff88800e5b2c98 RDI: ffff888005f050d0
[   46.494184][   T66] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   46.494464][   T66] R10: ffffffffadfec1e7 R11: ffff888005f045c0 R12: 0000000000000000
[   46.494749][   T66] R13: ffff88800e5b2128 R14: ffff88800e5b2008 R15: ffff88800e5b2000
[   46.495017][   T66] FS:  0000000000000000(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   46.495326][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.495551][   T66] CR2: 00007f0751ece700 CR3: 0000000009b30003 CR4: 0000000000772ef0
[   46.495806][   T66] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   46.496066][   T66] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   46.496351][   T66] PKRU: 55555554
[   46.496495][   T66] Call Trace:
[   46.496636][   T66]  <TASK>
[ 46.496724][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.496941][ T66] ? __warn (kernel/panic.c:748) 
[ 46.497089][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.497285][ T66] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 46.497497][ T66] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 46.497648][ T66] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 46.497838][ T66] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 46.498039][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.498239][ T66] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 46.498475][ T66] ? _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) 
[ 46.498662][ T66] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 46.498842][ T66] register_netdevice (net/core/dev.c:11003) 
[ 46.499030][ T66] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 46.499214][ T66] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 46.499400][ T66] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 46.499645][ T66] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 46.499888][ T66] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 46.500130][ T66] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 46.500368][ T66] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 46.500611][ T66] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 46.500876][ T66] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 46.501123][ T66] devlink_reload (net/devlink/dev.c:474) 
[ 46.501312][ T66] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 46.501517][ T66] ? devlinks_xa_find_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/devlink/core.c:343) 
[ 46.501724][ T66] devlink_pernet_pre_exit (net/devlink/core.c:288 net/devlink/devl_internal.h:114 net/devlink/core.c:513) 
[ 46.501919][ T66] ? __pfx_devlink_pernet_pre_exit (net/devlink/core.c:496) 
[ 46.502173][ T66] cleanup_net (net/core/net_namespace.c:162 net/core/net_namespace.c:632) 
[ 46.502349][ T66] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 46.502546][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:594) 
[ 46.502720][ T66] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 46.502908][ T66] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 46.503090][ T66] ? process_one_work (kernel/workqueue.c:3214) 
[ 46.503270][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 46.503456][ T66] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 46.503626][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 46.503808][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 46.503990][ T66] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 46.504174][ T66] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 46.504396][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 46.504619][ T66] kthread (kernel/kthread.c:464) 
[ 46.504810][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 46.505091][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 46.505366][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 46.505642][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 46.505905][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
| [   46.524362][   T66] ------------[ cut here ]------------
| [ 46.524692][ T66] WARNING: CPU: 0 PID: 66 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) 
| [   46.525238][   T66] Modules linked in: netdevsim
| [   46.526104][   T66] Tainted: [W]=WARN
[   46.526321][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.526707][   T66] Workqueue: netns cleanup_net
[ 46.527006][ T66] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.527362][ T66] 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
[   46.528341][   T66] RSP: 0018:ffffc90000477620 EFLAGS: 00010246
[   46.528726][   T66] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   46.529143][   T66] RDX: 0000000000000000 RSI: ffff88800b422c98 RDI: ffff888005f050d0
[   46.529571][   T66] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   46.529969][   T66] R10: ffffffffadfec1e7 R11: ffff888005f045c0 R12: 0000000000000000
[   46.530382][   T66] R13: ffff88800b422128 R14: ffff88800b422008 R15: ffff88800b422000
[   46.530800][   T66] FS:  0000000000000000(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   46.531276][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.531637][   T66] CR2: 00007f0751ece700 CR3: 000000002ff28005 CR4: 0000000000772ef0
[   46.532051][   T66] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   46.532487][   T66] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   46.532890][   T66] PKRU: 55555554
[   46.533112][   T66] Call Trace:
[   46.533326][   T66]  <TASK>
[ 46.533492][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.533780][ T66] ? __warn (kernel/panic.c:748) 
[ 46.533992][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.534292][ T66] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 46.534616][ T66] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 46.534830][ T66] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 46.535116][ T66] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 46.535443][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.535734][ T66] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 46.536114][ T66] ? _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) 
[ 46.536405][ T66] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 46.536707][ T66] register_netdevice (net/core/dev.c:11003) 
[ 46.536988][ T66] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 46.537290][ T66] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 46.537712][ T66] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 46.538094][ T66] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 46.538494][ T66] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 46.538865][ T66] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 46.539245][ T66] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 46.539625][ T66] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 46.539977][ T66] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 46.540341][ T66] devlink_reload (net/devlink/dev.c:474) 
[ 46.540649][ T66] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 46.540959][ T66] ? devlinks_xa_find_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/devlink/core.c:343) 
[ 46.541158][ T66] devlink_pernet_pre_exit (net/devlink/core.c:288 net/devlink/devl_internal.h:114 net/devlink/core.c:513) 
[ 46.541347][ T66] ? __pfx_devlink_pernet_pre_exit (net/devlink/core.c:496) 
[ 46.541647][ T66] cleanup_net (net/core/net_namespace.c:162 net/core/net_namespace.c:632) 
[ 46.541903][ T66] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 46.542086][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:594) 
[ 46.542265][ T66] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 46.542453][ T66] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 46.542642][ T66] ? process_one_work (kernel/workqueue.c:3214) 
[ 46.542821][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 46.543008][ T66] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 46.543184][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 46.543370][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 46.543563][ T66] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 46.543755][ T66] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 46.544001][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 46.544189][ T66] kthread (kernel/kthread.c:464) 
[ 46.544331][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 46.544518][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 46.544704][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 46.544885][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 46.545058][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
| [   46.558950][   T66] ------------[ cut here ]------------
| [ 46.559158][ T66] WARNING: CPU: 0 PID: 66 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) 
| [   46.559513][   T66] Modules linked in: netdevsim
| [   46.560065][   T66] Tainted: [W]=WARN
[   46.560201][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.560430][   T66] Workqueue: netns cleanup_net
[ 46.560718][ T66] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.560967][ T66] 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
[   46.561685][   T66] RSP: 0000:ffffc90000477620 EFLAGS: 00010246
[   46.561909][   T66] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   46.562235][   T66] RDX: 0000000000000000 RSI: ffff888004eaac98 RDI: ffff888005f050d0
[   46.562527][   T66] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   46.562854][   T66] R10: ffffffffadfec1e7 R11: ffff888005f045c0 R12: 0000000000000000
[   46.563109][   T66] R13: ffff888004eaa128 R14: ffff888004eaa008 R15: ffff888004eaa000
[   46.563396][   T66] FS:  0000000000000000(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   46.563758][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.564020][   T66] CR2: 00007f0751e77490 CR3: 000000000b956006 CR4: 0000000000772ef0
[   46.564310][   T66] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   46.564608][   T66] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   46.564876][   T66] PKRU: 55555554
[   46.565003][   T66] Call Trace:
[   46.565180][   T66]  <TASK>
[ 46.565277][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.565470][ T66] ? __warn (kernel/panic.c:748) 
[ 46.565620][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.565797][ T66] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 46.566036][ T66] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 46.566179][ T66] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 46.566368][ T66] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 46.566574][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.566767][ T66] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 46.566996][ T66] ? _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) 
[ 46.567177][ T66] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 46.567365][ T66] register_netdevice (net/core/dev.c:11003) 
[ 46.567549][ T66] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 46.567754][ T66] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 46.567948][ T66] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 46.568178][ T66] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 46.568407][ T66] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 46.568683][ T66] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 46.568916][ T66] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 46.569137][ T66] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 46.569346][ T66] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 46.569598][ T66] devlink_reload (net/devlink/dev.c:474) 
[ 46.569780][ T66] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 46.569962][ T66] ? devlinks_xa_find_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/devlink/core.c:343) 
[ 46.570149][ T66] devlink_pernet_pre_exit (net/devlink/core.c:288 net/devlink/devl_internal.h:114 net/devlink/core.c:513) 
[ 46.570332][ T66] ? __pfx_devlink_pernet_pre_exit (net/devlink/core.c:496) 
[ 46.570574][ T66] cleanup_net (net/core/net_namespace.c:162 net/core/net_namespace.c:632) 
[ 46.570779][ T66] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 46.570957][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:594) 
[ 46.571135][ T66] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 46.571323][ T66] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 46.571506][ T66] ? process_one_work (kernel/workqueue.c:3214) 
[ 46.571702][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 46.571887][ T66] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 46.572063][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 46.572249][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 46.572436][ T66] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 46.572640][ T66] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 46.572878][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 46.573057][ T66] kthread (kernel/kthread.c:464) 
[ 46.573191][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 46.573367][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 46.573548][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 46.573733][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 46.573901][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
| [   46.593297][   T66] ------------[ cut here ]------------
| [ 46.593525][ T66] WARNING: CPU: 0 PID: 66 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) 
| [   46.593900][   T66] Modules linked in: netdevsim
| [   46.594521][   T66] Tainted: [W]=WARN
[   46.594682][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.594942][   T66] Workqueue: netns cleanup_net
[ 46.595174][ T66] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.595450][ T66] 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
[   46.596093][   T66] RSP: 0000:ffffc90000477620 EFLAGS: 00010246
[   46.596366][   T66] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   46.596675][   T66] RDX: 0000000000000000 RSI: ffff888009c3ac98 RDI: ffff888005f050d0
[   46.596943][   T66] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   46.597196][   T66] R10: ffffffffadfec1e7 R11: ffff888005f045c0 R12: 0000000000000000
[   46.597458][   T66] R13: ffff888009c3a128 R14: ffff888009c3a008 R15: ffff888009c3a000
[   46.597780][   T66] FS:  0000000000000000(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   46.598171][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.598454][   T66] CR2: 00007f0751e77490 CR3: 000000000b956006 CR4: 0000000000772ef0
[   46.598764][   T66] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   46.599085][   T66] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   46.599428][   T66] PKRU: 55555554
[   46.599599][   T66] Call Trace:
[   46.599762][   T66]  <TASK>
[ 46.599852][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.600029][ T66] ? __warn (kernel/panic.c:748) 
[ 46.600165][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.600339][ T66] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 46.600545][ T66] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 46.600729][ T66] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 46.600920][ T66] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 46.601103][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 46.601285][ T66] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 46.601514][ T66] ? _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) 
[ 46.601759][ T66] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 46.601936][ T66] register_netdevice (net/core/dev.c:11003) 
[ 46.602120][ T66] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 46.602303][ T66] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 46.602500][ T66] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 46.602739][ T66] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 46.602970][ T66] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 46.603196][ T66] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 46.603432][ T66] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 46.603671][ T66] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 46.603880][ T66] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 46.604108][ T66] devlink_reload (net/devlink/dev.c:474) 
[ 46.604284][ T66] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 46.604467][ T66] ? devlinks_xa_find_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/devlink/core.c:343) 
[ 46.604664][ T66] devlink_pernet_pre_exit (net/devlink/core.c:288 net/devlink/devl_internal.h:114 net/devlink/core.c:513) 
[ 46.604837][ T66] ? __pfx_devlink_pernet_pre_exit (net/devlink/core.c:496) 
[ 46.605075][ T66] cleanup_net (net/core/net_namespace.c:162 net/core/net_namespace.c:632) 
[ 46.605250][ T66] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 46.605432][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:594) 
[ 46.605618][ T66] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 46.605795][ T66] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 46.605970][ T66] ? process_one_work (kernel/workqueue.c:3214) 
[ 46.606148][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 46.606334][ T66] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 46.606520][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 46.606755][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 46.606936][ T66] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 46.607171][ T66] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 46.607480][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 46.607732][ T66] kthread (kernel/kthread.c:464) 
[ 46.607913][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 46.608125][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 46.608322][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 46.608507][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 46.608698][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
| [   47.320775][  T495] ------------[ cut here ]------------
| [ 47.321065][ T495] WARNING: CPU: 0 PID: 495 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) 
| [   47.321488][  T495] Modules linked in: netdevsim
| [   47.322051][  T495] Tainted: [W]=WARN
[   47.322206][  T495] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.322516][ T495] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 47.322778][ T495] 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
[   47.323508][  T495] RSP: 0018:ffffc90000c871e8 EFLAGS: 00010246
[   47.323772][  T495] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   47.324078][  T495] RDX: 0000000000000000 RSI: ffff88800b51ac98 RDI: ffff8880094b0b00
[   47.324383][  T495] RBP: ffff888009343040 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   47.324701][  T495] R10: ffffffffadfec1e7 R11: ffff8880094b0040 R12: 0000000000000000
[   47.325011][  T495] R13: ffff88800b51a128 R14: ffff88800b51a008 R15: ffff88800b51a000
[   47.325317][  T495] FS:  00007fc9f5088800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   47.325681][  T495] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.325941][  T495] CR2: 00007fc9f51c7440 CR3: 000000000e872006 CR4: 0000000000772ef0
[   47.326247][  T495] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   47.326563][  T495] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   47.326867][  T495] PKRU: 55555554
[   47.327023][  T495] Call Trace:
[   47.327178][  T495]  <TASK>
[ 47.327283][ T495] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 47.327512][ T495] ? __warn (kernel/panic.c:748) 
[ 47.327672][ T495] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 47.327876][ T495] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 47.328085][ T495] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 47.328243][ T495] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 47.328458][ T495] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 47.328677][ T495] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 47.328886][ T495] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 47.329094][ T495] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 47.329351][ T495] ? _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) 
[ 47.329574][ T495] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 47.329785][ T495] register_netdevice (net/core/dev.c:11003) 
[ 47.329999][ T495] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 47.330213][ T495] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 47.330442][ T495] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 47.330709][ T495] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 47.330992][ T495] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 47.331265][ T495] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 47.331549][ T495] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 47.331806][ T495] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 47.332065][ T495] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 47.332328][ T495] devlink_reload (net/devlink/dev.c:474) 
[ 47.332545][ T495] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 47.332751][ T495] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 47.332965][ T495] ? cap_capable (security/commoncap.c:131) 
[ 47.333165][ T495] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 47.333331][ T495] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 47.333551][ T495] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 47.333809][ T495] ? __nla_parse (lib/nlattr.c:732) 
[ 47.334022][ T495] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 47.334231][ T495] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 47.334516][ T495] ? cap_capable (security/commoncap.c:131) 
[ 47.334724][ T495] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 47.334934][ T495] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 47.335148][ T495] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 47.335352][ T495] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 47.335627][ T495] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 47.335881][ T495] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 47.336147][ T495] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 47.336355][ T495] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 47.336571][ T495] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 47.336781][ T495] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 47.337002][ T495] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 47.337158][ T495] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 47.337366][ T495] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 47.337585][ T495] genl_rcv (net/netlink/genetlink.c:1220) 
[ 47.337740][ T495] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 47.337949][ T495] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 47.338156][ T495] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 47.338368][ T495] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 47.338589][ T495] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 47.338792][ T495] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 47.339001][ T495] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 47.339211][ T495] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 47.339440][ T495] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 47.339648][ T495] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 47.339847][ T495] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 47.340062][ T495] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 47.340275][ T495] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 47.340538][ T495] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 47.340745][ T495] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 47.341021][ T495] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 47.341234][ T495] __x64_sys_sendto (net/socket.c:2181) 
[ 47.341447][ T495] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 47.341700][ T495] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 47.341904][ T495] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   47.342159][  T495] RIP: 0033:0x7fc9f5294a4a
[ 47.342372][ T495] 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
[   47.343090][  T495] RSP: 002b:00007ffe873b3b18 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   47.343403][  T495] RAX: ffffffffffffffda RBX: 0000000031dafb00 RCX: 00007fc9f5294a4a
[   47.343725][  T495] RDX: 000000000000003c RSI: 0000000031dafb00 RDI: 0000000000000005
[   47.344029][  T495] RBP: 0000000031daf910 R08: 00007fc9f5438200 R09: 000000000000000c
[   47.344328][  T495] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   47.344640][  T495] R13: 0000000031daf910 R14: 0000000000000000 R15: 0000000000000001
| [   47.370400][  T495] ------------[ cut here ]------------
| [ 47.370704][ T495] WARNING: CPU: 1 PID: 495 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) 
| [   47.371115][  T495] Modules linked in: netdevsim
| [   47.371700][  T495] Tainted: [W]=WARN
[   47.371857][  T495] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.372107][ T495] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 47.372367][ T495] 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
[   47.373083][  T495] RSP: 0018:ffffc90000c871e8 EFLAGS: 00010246
[   47.373352][  T495] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   47.373663][  T495] RDX: 0000000000000000 RSI: ffff88800a0eac98 RDI: ffff8880094b0b00
[   47.373961][  T495] RBP: ffff888009343040 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   47.374261][  T495] R10: ffffffffadfec1e7 R11: ffff8880094b0040 R12: 0000000000000000
[   47.374585][  T495] R13: ffff88800a0ea128 R14: ffff88800a0ea008 R15: ffff88800a0ea000
[   47.374913][  T495] FS:  00007fc9f5088800(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   47.375260][  T495] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.375523][  T495] CR2: 00005624e2f4f160 CR3: 000000000e872006 CR4: 0000000000772ef0
[   47.375825][  T495] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   47.376130][  T495] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   47.376438][  T495] PKRU: 55555554
[   47.376591][  T495] Call Trace:
[   47.376743][  T495]  <TASK>
[ 47.376847][ T495] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 47.377051][ T495] ? __warn (kernel/panic.c:748) 
[ 47.377208][ T495] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 47.377429][ T495] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 47.377640][ T495] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 47.377796][ T495] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 47.377997][ T495] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 47.378209][ T495] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 47.378441][ T495] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 47.378675][ T495] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 47.378939][ T495] ? _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) 
[ 47.379148][ T495] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 47.379357][ T495] register_netdevice (net/core/dev.c:11003) 
[ 47.379580][ T495] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 47.379793][ T495] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 47.380013][ T495] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 47.380280][ T495] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 47.380569][ T495] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 47.380855][ T495] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 47.381119][ T495] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 47.381378][ T495] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 47.381643][ T495] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 47.381915][ T495] devlink_reload (net/devlink/dev.c:474) 
[ 47.382126][ T495] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 47.382330][ T495] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 47.382571][ T495] ? cap_capable (security/commoncap.c:131) 
[ 47.382793][ T495] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 47.382947][ T495] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 47.383139][ T495] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 47.383386][ T495] ? __nla_parse (lib/nlattr.c:732) 
[ 47.383597][ T495] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 47.383789][ T495] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 47.384033][ T495] ? cap_capable (security/commoncap.c:131) 
[ 47.384218][ T495] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 47.384426][ T495] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 47.384619][ T495] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 47.384810][ T495] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 47.385039][ T495] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 47.385273][ T495] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 47.385528][ T495] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 47.385719][ T495] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 47.385910][ T495] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 47.386103][ T495] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 47.386314][ T495] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 47.386487][ T495] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 47.386704][ T495] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 47.386902][ T495] genl_rcv (net/netlink/genetlink.c:1220) 
[ 47.387043][ T495] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 47.387236][ T495] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 47.387441][ T495] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 47.387643][ T495] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 47.387835][ T495] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 47.388021][ T495] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 47.388210][ T495] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 47.388405][ T495] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 47.388610][ T495] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 47.388797][ T495] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 47.388983][ T495] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 47.389184][ T495] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 47.389392][ T495] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 47.389656][ T495] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 47.389858][ T495] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 47.390096][ T495] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 47.390294][ T495] __x64_sys_sendto (net/socket.c:2181) 
[ 47.390519][ T495] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 47.390784][ T495] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 47.390977][ T495] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   47.391206][  T495] RIP: 0033:0x7fc9f5294a4a
[ 47.391404][ T495] 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
[   47.392094][  T495] RSP: 002b:00007ffe873b3b18 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   47.392385][  T495] RAX: ffffffffffffffda RBX: 0000000031dafb00 RCX: 00007fc9f5294a4a
[   47.392675][  T495] RDX: 000000000000003c RSI: 0000000031dafb00 RDI: 0000000000000005
[   47.392953][  T495] RBP: 0000000031daf910 R08: 00007fc9f5438200 R09: 000000000000000c
[   47.393238][  T495] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   47.393525][  T495] R13: 0000000031daf910 R14: 0000000000000000 R15: 0000000000000001
| [   47.408382][  T495] ------------[ cut here ]------------
| [ 47.408625][ T495] WARNING: CPU: 1 PID: 495 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) 
| [   47.408999][  T495] Modules linked in: netdevsim
| [   47.409544][  T495] Tainted: [W]=WARN
[   47.409695][  T495] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.409925][ T495] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 47.410163][ T495] 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
[   47.410849][  T495] RSP: 0018:ffffc90000c871e8 EFLAGS: 00010246
[   47.411094][  T495] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   47.411372][  T495] RDX: 0000000000000000 RSI: ffff88800aaaac98 RDI: ffff8880094b0b00
[   47.411687][  T495] RBP: ffff888009343040 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   47.411965][  T495] R10: ffffffffadfec1e7 R11: ffff8880094b0040 R12: 0000000000000000
[   47.412252][  T495] R13: ffff88800aaaa128 R14: ffff88800aaaa008 R15: ffff88800aaaa000
[   47.412545][  T495] FS:  00007fc9f5088800(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   47.412868][  T495] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.413103][  T495] CR2: 00005624e2f4f160 CR3: 000000000e872006 CR4: 0000000000772ef0
[   47.413401][  T495] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   47.413724][  T495] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   47.414019][  T495] PKRU: 55555554
[   47.414173][  T495] Call Trace:
[   47.414327][  T495]  <TASK>
[ 47.414491][ T495] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 47.414704][ T495] ? __warn (kernel/panic.c:748) 
[ 47.414864][ T495] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 47.415067][ T495] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 47.415276][ T495] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 47.415451][ T495] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 47.415656][ T495] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 47.415875][ T495] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 47.416083][ T495] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 47.416291][ T495] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 47.416592][ T495] ? _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) 
[ 47.416804][ T495] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 47.417009][ T495] register_netdevice (net/core/dev.c:11003) 
[ 47.417216][ T495] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 47.417461][ T495] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 47.417684][ T495] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 47.417953][ T495] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 47.418222][ T495] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 47.418508][ T495] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 47.418771][ T495] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 47.419030][ T495] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 47.419288][ T495] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 47.419598][ T495] devlink_reload (net/devlink/dev.c:474) 
[ 47.419797][ T495] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 47.419983][ T495] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 47.420174][ T495] ? cap_capable (security/commoncap.c:131) 
[ 47.420362][ T495] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 47.420536][ T495] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 47.420737][ T495] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 47.420981][ T495] ? __nla_parse (lib/nlattr.c:732) 
[ 47.421179][ T495] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 47.421370][ T495] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 47.421639][ T495] ? cap_capable (security/commoncap.c:131) 
[ 47.421828][ T495] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 47.422024][ T495] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 47.422219][ T495] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 47.422425][ T495] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 47.422665][ T495] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 47.422894][ T495] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 47.423138][ T495] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 47.423336][ T495] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 47.423563][ T495] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 47.423761][ T495] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 47.423964][ T495] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 47.424105][ T495] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 47.424304][ T495] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 47.424529][ T495] genl_rcv (net/netlink/genetlink.c:1220) 
[ 47.424672][ T495] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 47.424865][ T495] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 47.425059][ T495] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 47.425257][ T495] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 47.425477][ T495] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 47.425665][ T495] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 47.425854][ T495] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 47.426050][ T495] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 47.426244][ T495] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 47.426449][ T495] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 47.426643][ T495] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 47.426843][ T495] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 47.427034][ T495] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 47.427264][ T495] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 47.427495][ T495] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 47.427737][ T495] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 47.427938][ T495] __x64_sys_sendto (net/socket.c:2181) 
[ 47.428124][ T495] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 47.428361][ T495] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 47.428572][ T495] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   47.428802][  T495] RIP: 0033:0x7fc9f5294a4a
[ 47.428996][ T495] 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
[   47.429676][  T495] RSP: 002b:00007ffe873b3b18 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   47.429958][  T495] RAX: ffffffffffffffda RBX: 0000000031dafb00 RCX: 00007fc9f5294a4a
[   47.430234][  T495] RDX: 000000000000003c RSI: 0000000031dafb00 RDI: 0000000000000005
[   47.430542][  T495] RBP: 0000000031daf910 R08: 00007fc9f5438200 R09: 000000000000000c
[   47.430828][  T495] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   47.431105][  T495] R13: 0000000031daf910 R14: 0000000000000000 R15: 0000000000000001
| [   47.446840][  T495] ------------[ cut here ]------------
| [ 47.447058][ T495] WARNING: CPU: 1 PID: 495 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) 
| [   47.447454][  T495] Modules linked in: netdevsim
| [   47.447983][  T495] Tainted: [W]=WARN
[   47.448125][  T495] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.448357][ T495] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 47.448617][ T495] 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
[   47.449273][  T495] RSP: 0018:ffffc90000c871e8 EFLAGS: 00010246
[   47.449554][  T495] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   47.449833][  T495] RDX: 0000000000000000 RSI: ffff88800512ac98 RDI: ffff8880094b0b00
[   47.450111][  T495] RBP: ffff888009343040 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   47.450392][  T495] R10: ffffffffadfec1e7 R11: ffff8880094b0040 R12: 0000000000000000
[   47.450711][  T495] R13: ffff88800512a128 R14: ffff88800512a008 R15: ffff88800512a000
[   47.451000][  T495] FS:  00007fc9f5088800(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   47.451325][  T495] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.451604][  T495] CR2: 00005624e2f4f160 CR3: 000000000e872006 CR4: 0000000000772ef0
[   47.451891][  T495] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   47.452168][  T495] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   47.452473][  T495] PKRU: 55555554
[   47.452616][  T495] Call Trace:
[   47.452757][  T495]  <TASK>
[ 47.452854][ T495] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 47.453049][ T495] ? __warn (kernel/panic.c:748) 
[ 47.453194][ T495] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 47.453396][ T495] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 47.453613][ T495] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 47.453759][ T495] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 47.453947][ T495] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 47.454147][ T495] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 47.454350][ T495] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 47.454603][ T495] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 47.454846][ T495] ? _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) 
[ 47.455046][ T495] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 47.455243][ T495] register_netdevice (net/core/dev.c:11003) 
[ 47.455457][ T495] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 47.455660][ T495] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 47.455871][ T495] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 47.456119][ T495] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 47.456369][ T495] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 47.456636][ T495] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 47.456885][ T495] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 47.457124][ T495] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 47.457364][ T495] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 47.457647][ T495] devlink_reload (net/devlink/dev.c:474) 
[ 47.457841][ T495] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 47.458027][ T495] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 47.458221][ T495] ? cap_capable (security/commoncap.c:131) 
[ 47.458427][ T495] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 47.458614][ T495] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 47.458807][ T495] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 47.459041][ T495] ? __nla_parse (lib/nlattr.c:732) 
[ 47.459238][ T495] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 47.459451][ T495] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 47.459699][ T495] ? cap_capable (security/commoncap.c:131) 
[ 47.459883][ T495] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 47.460081][ T495] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 47.460275][ T495] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 47.460487][ T495] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 47.460717][ T495] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 47.460958][ T495] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 47.461203][ T495] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 47.461395][ T495] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 47.461629][ T495] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 47.461821][ T495] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 47.462022][ T495] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 47.462165][ T495] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 47.462356][ T495] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 47.462575][ T495] genl_rcv (net/netlink/genetlink.c:1220) 
[ 47.462717][ T495] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 47.462915][ T495] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 47.463106][ T495] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 47.463306][ T495] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 47.463548][ T495] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 47.463737][ T495] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 47.463929][ T495] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 47.464128][ T495] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 47.464326][ T495] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 47.464542][ T495] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 47.464733][ T495] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 47.464932][ T495] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 47.465124][ T495] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 47.465362][ T495] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 47.465573][ T495] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 47.465815][ T495] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 47.466011][ T495] __x64_sys_sendto (net/socket.c:2181) 
[ 47.466199][ T495] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 47.466459][ T495] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 47.466659][ T495] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   47.466892][  T495] RIP: 0033:0x7fc9f5294a4a
[ 47.467085][ T495] 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
[   47.467785][  T495] RSP: 002b:00007ffe873b3b18 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   47.468067][  T495] RAX: ffffffffffffffda RBX: 0000000031dafb00 RCX: 00007fc9f5294a4a
[   47.468345][  T495] RDX: 000000000000003c RSI: 0000000031dafb00 RDI: 0000000000000005
[   47.468644][  T495] RBP: 0000000031daf910 R08: 00007fc9f5438200 R09: 000000000000000c
[   47.468921][  T495] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   47.469200][  T495] R13: 0000000031daf910 R14: 0000000000000000 R15: 0000000000000001
| [   48.373317][  T515] ------------[ cut here ]------------
| [ 48.373576][ T515] WARNING: CPU: 3 PID: 515 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) 
| [   48.373994][  T515] Modules linked in: netdevsim
| [   48.374563][  T515] Tainted: [W]=WARN
[   48.374709][  T515] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 48.374942][ T515] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.375182][ T515] 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
[   48.375919][  T515] RSP: 0018:ffffc90000e171e8 EFLAGS: 00010246
[   48.376174][  T515] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   48.376465][  T515] RDX: 0000000000000000 RSI: ffff888008e9ac98 RDI: ffff88800b59adc0
[   48.376740][  T515] RBP: ffff888009343040 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   48.377016][  T515] R10: ffffffffadfec1e7 R11: ffff88800b59a300 R12: 0000000000000000
[   48.377304][  T515] R13: ffff888008e9a128 R14: ffff888008e9a008 R15: ffff888008e9a000
[   48.377596][  T515] FS:  00007f71ee55f800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   48.377921][  T515] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.378156][  T515] CR2: 00007fe9f4914258 CR3: 000000000e89a002 CR4: 0000000000772ef0
[   48.378450][  T515] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   48.378728][  T515] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   48.379006][  T515] PKRU: 55555554
[   48.379147][  T515] Call Trace:
[   48.379291][  T515]  <TASK>
[ 48.379388][ T515] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.379594][ T515] ? __warn (kernel/panic.c:748) 
[ 48.379741][ T515] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.379932][ T515] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 48.380127][ T515] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 48.380277][ T515] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 48.380475][ T515] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 48.380679][ T515] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.380877][ T515] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 48.381077][ T515] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 48.381320][ T515] ? _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) 
[ 48.381529][ T515] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 48.381723][ T515] register_netdevice (net/core/dev.c:11003) 
[ 48.381916][ T515] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 48.382115][ T515] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 48.382331][ T515] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 48.382586][ T515] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 48.382834][ T515] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 48.383081][ T515] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 48.383330][ T515] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 48.383578][ T515] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 48.383818][ T515] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 48.384055][ T515] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 48.384248][ T515] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 48.384517][ T515] devlink_reload (net/devlink/dev.c:474) 
[ 48.384712][ T515] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 48.384903][ T515] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 48.385151][ T515] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 48.385344][ T515] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 48.385589][ T515] ? __nla_parse (lib/nlattr.c:732) 
[ 48.385786][ T515] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 48.385980][ T515] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 48.386223][ T515] ? cap_capable (security/commoncap.c:131) 
[ 48.386424][ T515] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 48.386626][ T515] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 48.386820][ T515] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 48.387009][ T515] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 48.387238][ T515] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 48.387479][ T515] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 48.387723][ T515] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 48.387917][ T515] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 48.388105][ T515] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 48.388300][ T515] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 48.388510][ T515] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 48.388655][ T515] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 48.388847][ T515] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 48.389042][ T515] genl_rcv (net/netlink/genetlink.c:1220) 
[ 48.389184][ T515] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 48.389389][ T515] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 48.389603][ T515] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 48.389815][ T515] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 48.390019][ T515] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 48.390210][ T515] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 48.390423][ T515] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 48.390635][ T515] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 48.390854][ T515] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 48.391064][ T515] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 48.391272][ T515] ? __sys_recvmsg (net/socket.c:2859) 
[ 48.391482][ T515] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 48.391696][ T515] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 48.391902][ T515] __x64_sys_sendto (net/socket.c:2181) 
[ 48.392103][ T515] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 48.392356][ T515] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 48.392575][ T515] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   48.392827][  T515] RIP: 0033:0x7f71ee76ba4a
[ 48.393037][ T515] 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
[   48.393747][  T515] RSP: 002b:00007ffdb01c2588 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   48.394058][  T515] RAX: ffffffffffffffda RBX: 0000000029ae3b00 RCX: 00007f71ee76ba4a
[   48.394359][  T515] RDX: 0000000000000034 RSI: 0000000029ae3b00 RDI: 0000000000000005
[   48.394669][  T515] RBP: 0000000029ae3910 R08: 00007f71ee90f200 R09: 000000000000000c
[   48.394969][  T515] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   48.395267][  T515] R13: 0000000029ae3910 R14: 0000000000000000 R15: 0000000000000003
| [   48.415530][  T515] ------------[ cut here ]------------
| [ 48.415777][ T515] WARNING: CPU: 3 PID: 515 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) 
| [   48.416149][  T515] Modules linked in: netdevsim
| [   48.416685][  T515] Tainted: [W]=WARN
[   48.416830][  T515] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 48.417065][ T515] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.417306][ T515] 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
[   48.417962][  T515] RSP: 0018:ffffc90000e171e8 EFLAGS: 00010246
[   48.418199][  T515] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   48.418491][  T515] RDX: 0000000000000000 RSI: ffff88800a262c98 RDI: ffff88800b59adc0
[   48.418769][  T515] RBP: ffff888009343040 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   48.419049][  T515] R10: ffffffffadfec1e7 R11: ffff88800b59a300 R12: 0000000000000000
[   48.419331][  T515] R13: ffff88800a262128 R14: ffff88800a262008 R15: ffff88800a262000
[   48.419620][  T515] FS:  00007f71ee55f800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   48.419946][  T515] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.420181][  T515] CR2: 00007fe9f4914258 CR3: 000000000e89a002 CR4: 0000000000772ef0
[   48.420492][  T515] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   48.420782][  T515] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   48.421076][  T515] PKRU: 55555554
[   48.421218][  T515] Call Trace:
[   48.421361][  T515]  <TASK>
[ 48.421469][ T515] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.421659][ T515] ? __warn (kernel/panic.c:748) 
[ 48.421807][ T515] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.421994][ T515] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 48.422190][ T515] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 48.422334][ T515] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 48.422532][ T515] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 48.422736][ T515] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.422927][ T515] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 48.423123][ T515] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 48.423364][ T515] ? _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) 
[ 48.423566][ T515] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 48.423759][ T515] register_netdevice (net/core/dev.c:11003) 
[ 48.423954][ T515] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 48.424152][ T515] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 48.424356][ T515] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 48.424608][ T515] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 48.424859][ T515] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 48.425105][ T515] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 48.425353][ T515] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 48.425600][ T515] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 48.425832][ T515] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 48.426072][ T515] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 48.426264][ T515] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 48.426520][ T515] devlink_reload (net/devlink/dev.c:474) 
[ 48.426716][ T515] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 48.426914][ T515] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 48.427161][ T515] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 48.427356][ T515] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 48.427610][ T515] ? __nla_parse (lib/nlattr.c:732) 
[ 48.427808][ T515] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 48.427998][ T515] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 48.428247][ T515] ? cap_capable (security/commoncap.c:131) 
[ 48.428447][ T515] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 48.428647][ T515] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 48.428841][ T515] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 48.429032][ T515] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 48.429263][ T515] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 48.429508][ T515] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 48.429752][ T515] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 48.429942][ T515] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 48.430130][ T515] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 48.430322][ T515] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 48.430553][ T515] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 48.430698][ T515] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 48.430927][ T515] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 48.431125][ T515] genl_rcv (net/netlink/genetlink.c:1220) 
[ 48.431268][ T515] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 48.431467][ T515] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 48.431659][ T515] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 48.431853][ T515] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 48.432048][ T515] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 48.432236][ T515] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 48.432444][ T515] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 48.432650][ T515] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 48.432841][ T515] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 48.433041][ T515] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 48.433237][ T515] ? __sys_recvmsg (net/socket.c:2859) 
[ 48.433435][ T515] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 48.433634][ T515] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 48.433836][ T515] __x64_sys_sendto (net/socket.c:2181) 
[ 48.434025][ T515] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 48.434258][ T515] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 48.434459][ T515] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   48.434698][  T515] RIP: 0033:0x7f71ee76ba4a
[ 48.434893][ T515] 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
[   48.435554][  T515] RSP: 002b:00007ffdb01c2588 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   48.435842][  T515] RAX: ffffffffffffffda RBX: 0000000029ae3b00 RCX: 00007f71ee76ba4a
[   48.436163][  T515] RDX: 0000000000000034 RSI: 0000000029ae3b00 RDI: 0000000000000005
[   48.436466][  T515] RBP: 0000000029ae3910 R08: 00007f71ee90f200 R09: 000000000000000c
[   48.436748][  T515] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   48.437025][  T515] R13: 0000000029ae3910 R14: 0000000000000000 R15: 0000000000000003
| [   48.461586][  T515] ------------[ cut here ]------------
| [ 48.461808][ T515] WARNING: CPU: 3 PID: 515 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) 
| [   48.462184][  T515] Modules linked in: netdevsim
| [   48.462712][  T515] Tainted: [W]=WARN
[   48.462856][  T515] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 48.463088][ T515] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.463326][ T515] 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
[   48.464018][  T515] RSP: 0018:ffffc90000e171e8 EFLAGS: 00010246
[   48.464261][  T515] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   48.464554][  T515] RDX: 0000000000000000 RSI: ffff8880051aac98 RDI: ffff88800b59adc0
[   48.464841][  T515] RBP: ffff888009343040 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   48.465130][  T515] R10: ffffffffadfec1e7 R11: ffff88800b59a300 R12: 0000000000000000
[   48.465420][  T515] R13: ffff8880051aa128 R14: ffff8880051aa008 R15: ffff8880051aa000
[   48.465707][  T515] FS:  00007f71ee55f800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   48.466056][  T515] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.466325][  T515] CR2: 00007fe9f4914258 CR3: 000000000e89a002 CR4: 0000000000772ef0
[   48.466616][  T515] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   48.466899][  T515] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   48.467178][  T515] PKRU: 55555554
[   48.467320][  T515] Call Trace:
[   48.467472][  T515]  <TASK>
[ 48.467571][ T515] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.467761][ T515] ? __warn (kernel/panic.c:748) 
[ 48.467905][ T515] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.468095][ T515] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 48.468294][ T515] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 48.468452][ T515] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 48.468643][ T515] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 48.468844][ T515] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.469033][ T515] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 48.469226][ T515] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 48.469473][ T515] ? _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) 
[ 48.469671][ T515] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 48.469895][ T515] register_netdevice (net/core/dev.c:11003) 
[ 48.470091][ T515] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 48.470288][ T515] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 48.470522][ T515] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 48.470778][ T515] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 48.471043][ T515] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 48.471292][ T515] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 48.471548][ T515] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 48.471788][ T515] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 48.472021][ T515] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 48.472263][ T515] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 48.472459][ T515] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 48.472712][ T515] devlink_reload (net/devlink/dev.c:474) 
[ 48.472904][ T515] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 48.473094][ T515] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 48.473336][ T515] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 48.473537][ T515] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 48.473777][ T515] ? __nla_parse (lib/nlattr.c:732) 
[ 48.474006][ T515] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 48.474203][ T515] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 48.474482][ T515] ? cap_capable (security/commoncap.c:131) 
[ 48.474681][ T515] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 48.474896][ T515] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 48.475103][ T515] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 48.475311][ T515] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 48.475575][ T515] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 48.475825][ T515] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 48.476087][ T515] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 48.476295][ T515] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 48.476506][ T515] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 48.476712][ T515] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 48.476934][ T515] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 48.477090][ T515] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 48.477294][ T515] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 48.477512][ T515] genl_rcv (net/netlink/genetlink.c:1220) 
[ 48.477666][ T515] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 48.477873][ T515] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 48.478077][ T515] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 48.478290][ T515] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 48.478510][ T515] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 48.478712][ T515] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 48.478916][ T515] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 48.479127][ T515] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 48.479334][ T515] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 48.479557][ T515] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 48.479764][ T515] ? __sys_recvmsg (net/socket.c:2859) 
[ 48.479973][ T515] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 48.480187][ T515] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 48.480396][ T515] __x64_sys_sendto (net/socket.c:2181) 
[ 48.480610][ T515] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 48.480881][ T515] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 48.481087][ T515] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   48.481337][  T515] RIP: 0033:0x7f71ee76ba4a
[ 48.481563][ T515] 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
[   48.482263][  T515] RSP: 002b:00007ffdb01c2588 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   48.482574][  T515] RAX: ffffffffffffffda RBX: 0000000029ae3b00 RCX: 00007f71ee76ba4a
[   48.482871][  T515] RDX: 0000000000000034 RSI: 0000000029ae3b00 RDI: 0000000000000005
[   48.483173][  T515] RBP: 0000000029ae3910 R08: 00007f71ee90f200 R09: 000000000000000c
[   48.483484][  T515] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   48.483780][  T515] R13: 0000000029ae3910 R14: 0000000000000000 R15: 0000000000000003
| [   48.496626][  T515] ------------[ cut here ]------------
| [ 48.496880][ T515] WARNING: CPU: 3 PID: 515 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) 
| [   48.497277][  T515] Modules linked in: netdevsim
| [   48.497851][  T515] Tainted: [W]=WARN
[   48.498001][  T515] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 48.498251][ T515] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.498518][ T515] 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
[   48.499223][  T515] RSP: 0018:ffffc90000e171e8 EFLAGS: 00010246
[   48.499484][  T515] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   48.499785][  T515] RDX: 0000000000000000 RSI: ffff88800e81ac98 RDI: ffff88800b59adc0
[   48.500094][  T515] RBP: ffff888009343040 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   48.500394][  T515] R10: ffffffffadfec1e7 R11: ffff88800b59a300 R12: 0000000000000000
[   48.500708][  T515] R13: ffff88800e81a128 R14: ffff88800e81a008 R15: ffff88800e81a000
[   48.501018][  T515] FS:  00007f71ee55f800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   48.501372][  T515] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.501638][  T515] CR2: 00007fe9f4914258 CR3: 000000000e89a002 CR4: 0000000000772ef0
[   48.501943][  T515] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   48.502248][  T515] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   48.502555][  T515] PKRU: 55555554
[   48.502712][  T515] Call Trace:
[   48.502867][  T515]  <TASK>
[ 48.502971][ T515] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.503173][ T515] ? __warn (kernel/panic.c:748) 
[ 48.503329][ T515] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.503541][ T515] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 48.503750][ T515] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 48.503905][ T515] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 48.504107][ T515] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 48.504326][ T515] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 48.504538][ T515] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 48.504749][ T515] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 48.505006][ T515] ? _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) 
[ 48.505213][ T515] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 48.505432][ T515] register_netdevice (net/core/dev.c:11003) 
[ 48.505647][ T515] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 48.505863][ T515] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 48.506080][ T515] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 48.506339][ T515] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 48.506617][ T515] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 48.506885][ T515] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 48.507150][ T515] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 48.507424][ T515] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 48.507673][ T515] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 48.507921][ T515] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 48.508125][ T515] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 48.508390][ T515] devlink_reload (net/devlink/dev.c:474) 
[ 48.508609][ T515] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 48.508821][ T515] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 48.509083][ T515] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 48.509292][ T515] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 48.509556][ T515] ? __nla_parse (lib/nlattr.c:732) 
[ 48.509771][ T515] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 48.509980][ T515] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 48.510246][ T515] ? cap_capable (security/commoncap.c:131) 
[ 48.510456][ T515] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 48.510666][ T515] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 48.510882][ T515] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 48.511087][ T515] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 48.511340][ T515] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 48.511604][ T515] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 48.511869][ T515] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 48.512077][ T515] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 48.512280][ T515] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 48.512493][ T515] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 48.512713][ T515] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 48.512883][ T515] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 48.513096][ T515] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 48.513307][ T515] genl_rcv (net/netlink/genetlink.c:1220) 
[ 48.513472][ T515] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 48.513680][ T515] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 48.513883][ T515] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 48.514094][ T515] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 48.514303][ T515] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 48.514514][ T515] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 48.514724][ T515] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 48.514938][ T515] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 48.515147][ T515] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 48.515357][ T515] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 48.515572][ T515] ? __sys_recvmsg (net/socket.c:2859) 
[ 48.515778][ T515] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 48.515991][ T515] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 48.516204][ T515] __x64_sys_sendto (net/socket.c:2181) 
[ 48.516419][ T515] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 48.516677][ T515] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 48.516884][ T515] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   48.517135][  T515] RIP: 0033:0x7f71ee76ba4a
[ 48.517348][ T515] 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
[   48.518063][  T515] RSP: 002b:00007ffdb01c2588 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   48.518367][  T515] RAX: ffffffffffffffda RBX: 0000000029ae3b00 RCX: 00007f71ee76ba4a
[   48.518673][  T515] RDX: 0000000000000034 RSI: 0000000029ae3b00 RDI: 0000000000000005
[   48.518975][  T515] RBP: 0000000029ae3910 R08: 00007f71ee90f200 R09: 000000000000000c
[   48.519277][  T515] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   48.519587][  T515] R13: 0000000029ae3910 R14: 0000000000000000 R15: 0000000000000003
| [   49.724204][  T534] ------------[ cut here ]------------
| [ 49.725860][ T534] WARNING: CPU: 1 PID: 534 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) 
| [   49.726494][  T534] Modules linked in: netdevsim
| [   49.727358][  T534] Tainted: [W]=WARN
[   49.727615][  T534] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 49.728004][ T534] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 49.728403][ T534] 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
[   49.729495][  T534] RSP: 0018:ffffc90000e471e8 EFLAGS: 00010246
[   49.729893][  T534] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   49.730360][  T534] RDX: 0000000000000000 RSI: ffff88800e532c98 RDI: ffff888006225080
[   49.730862][  T534] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   49.731324][  T534] R10: ffffffffadfec1e7 R11: ffff8880062245c0 R12: 0000000000000000
[   49.731803][  T534] R13: ffff88800e532128 R14: ffff88800e532008 R15: ffff88800e532000
[   49.732270][  T534] FS:  00007ff71cb0f800(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   49.732828][  T534] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   49.733224][  T534] CR2: 00007ff71cd6b423 CR3: 0000000002b5c004 CR4: 0000000000772ef0
[   49.733707][  T534] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   49.734175][  T534] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   49.734657][  T534] PKRU: 55555554
[   49.734896][  T534] Call Trace:
[   49.735132][  T534]  <TASK>
[ 49.735295][ T534] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 49.735631][ T534] ? __warn (kernel/panic.c:748) 
[ 49.735880][ T534] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 49.736205][ T534] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 49.736548][ T534] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 49.736793][ T534] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 49.737110][ T534] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 49.737469][ T534] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 49.737793][ T534] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 49.738126][ T534] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 49.738548][ T534] ? _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) 
[ 49.738875][ T534] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 49.739207][ T534] register_netdevice (net/core/dev.c:11003) 
[ 49.739548][ T534] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 49.739892][ T534] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 49.740241][ T534] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 49.740674][ T534] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 49.741118][ T534] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 49.741566][ T534] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 49.741978][ T534] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 49.742384][ T534] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 49.742798][ T534] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 49.743216][ T534] devlink_reload (net/devlink/dev.c:474) 
[ 49.743558][ T534] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 49.743874][ T534] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 49.744197][ T534] ? cap_capable (security/commoncap.c:131) 
[ 49.744549][ T534] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 49.744874][ T534] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 49.745269][ T534] ? __nla_parse (lib/nlattr.c:732) 
[ 49.745620][ T534] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 49.745946][ T534] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 49.746363][ T534] ? cap_capable (security/commoncap.c:131) 
[ 49.746697][ T534] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 49.747029][ T534] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 49.747351][ T534] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 49.747685][ T534] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 49.748081][ T534] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 49.748491][ T534] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 49.748912][ T534] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 49.749238][ T534] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 49.749570][ T534] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 49.749892][ T534] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 49.750241][ T534] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 49.750502][ T534] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 49.750830][ T534] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 49.751162][ T534] genl_rcv (net/netlink/genetlink.c:1220) 
[ 49.751405][ T534] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 49.751753][ T534] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 49.752075][ T534] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 49.752375][ T534] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 49.752704][ T534] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 49.753011][ T534] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 49.753369][ T534] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 49.753712][ T534] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 49.754013][ T534] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 49.754358][ T534] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 49.754691][ T534] ? 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) 
[ 49.755012][ T534] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 49.755334][ T534] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 49.755675][ T534] ? 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) 
[ 49.756001][ T534] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 49.756324][ T534] __x64_sys_sendto (net/socket.c:2181) 
[ 49.756659][ T534] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 49.757053][ T534] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 49.757371][ T534] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   49.757776][  T534] RIP: 0033:0x7ff71cd1ba4a
[ 49.758100][ T534] 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
[   49.759192][  T534] RSP: 002b:00007ffe99fb8028 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   49.759679][  T534] RAX: ffffffffffffffda RBX: 000000000516db00 RCX: 00007ff71cd1ba4a
[   49.760138][  T534] RDX: 000000000000003c RSI: 000000000516db00 RDI: 0000000000000005
[   49.760615][  T534] RBP: 000000000516d910 R08: 00007ff71cebf200 R09: 000000000000000c
[   49.761094][  T534] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   49.761572][  T534] R13: 000000000516d910 R14: 0000000000000000 R15: 0000000000000003
| [   49.777102][  T534] ------------[ cut here ]------------
| [ 49.777498][ T534] WARNING: CPU: 1 PID: 534 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) 
| [   49.778140][  T534] Modules linked in: netdevsim
| [   49.779156][  T534] Tainted: [W]=WARN
[   49.779394][  T534] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 49.779802][ T534] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 49.780204][ T534] 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
[   49.781308][  T534] RSP: 0018:ffffc90000e471e8 EFLAGS: 00010246
[   49.781718][  T534] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   49.782180][  T534] RDX: 0000000000000000 RSI: ffff888004f8ac98 RDI: ffff888006225080
[   49.782660][  T534] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   49.783124][  T534] R10: ffffffffadfec1e7 R11: ffff8880062245c0 R12: 0000000000000000
[   49.783605][  T534] R13: ffff888004f8a128 R14: ffff888004f8a008 R15: ffff888004f8a000
[   49.784071][  T534] FS:  00007ff71cb0f800(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   49.784627][  T534] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   49.785027][  T534] CR2: 00007ff71cd6b423 CR3: 0000000002b5c004 CR4: 0000000000772ef0
[   49.785505][  T534] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   49.785972][  T534] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   49.786451][  T534] PKRU: 55555554
[   49.786689][  T534] Call Trace:
[   49.786929][  T534]  <TASK>
[ 49.787099][ T534] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 49.787429][ T534] ? __warn (kernel/panic.c:748) 
[ 49.787674][ T534] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 49.787994][ T534] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 49.788326][ T534] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 49.788585][ T534] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 49.788903][ T534] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 49.789244][ T534] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 49.789586][ T534] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 49.789915][ T534] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 49.790320][ T534] ? _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) 
[ 49.790663][ T534] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 49.790999][ T534] register_netdevice (net/core/dev.c:11003) 
[ 49.791325][ T534] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 49.791687][ T534] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 49.792033][ T534] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 49.792462][ T534] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 49.792895][ T534] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 49.793317][ T534] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 49.793752][ T534] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 49.794166][ T534] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 49.794574][ T534] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 49.794995][ T534] devlink_reload (net/devlink/dev.c:474) 
[ 49.795326][ T534] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 49.795861][ T534] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 49.796186][ T534] ? cap_capable (security/commoncap.c:131) 
[ 49.796533][ T534] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 49.796855][ T534] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 49.797470][ T534] ? __nla_parse (lib/nlattr.c:732) 
[ 49.797769][ T534] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 49.798087][ T534] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 49.798522][ T534] ? cap_capable (security/commoncap.c:131) 
[ 49.798994][ T534] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 49.799302][ T534] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 49.799642][ T534] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 49.799957][ T534] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 49.800512][ T534] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 49.800890][ T534] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 49.801300][ T534] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 49.801803][ T534] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 49.802076][ T534] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 49.802394][ T534] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 49.802751][ T534] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 49.803165][ T534] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 49.803444][ T534] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 49.803766][ T534] genl_rcv (net/netlink/genetlink.c:1220) 
[ 49.804013][ T534] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 49.804339][ T534] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 49.804829][ T534] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 49.805134][ T534] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 49.805520][ T534] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 49.805812][ T534] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 49.806267][ T534] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 49.806616][ T534] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 49.806942][ T534] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 49.807278][ T534] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 49.807805][ T534] ? 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) 
[ 49.808119][ T534] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 49.808456][ T534] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 49.808783][ T534] ? 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) 
[ 49.809275][ T534] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 49.809603][ T534] __x64_sys_sendto (net/socket.c:2181) 
[ 49.809918][ T534] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 49.810536][ T534] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 49.810817][ T534] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   49.811177][  T534] RIP: 0033:0x7ff71cd1ba4a
[ 49.811516][ T534] 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
[   49.812788][  T534] RSP: 002b:00007ffe99fb8028 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   49.813450][  T534] RAX: ffffffffffffffda RBX: 000000000516db00 RCX: 00007ff71cd1ba4a
[   49.813879][  T534] RDX: 000000000000003c RSI: 000000000516db00 RDI: 0000000000000005
[   49.814338][  T534] RBP: 000000000516d910 R08: 00007ff71cebf200 R09: 000000000000000c
[   49.814956][  T534] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   49.815431][  T534] R13: 000000000516d910 R14: 0000000000000000 R15: 0000000000000003
| [   49.837829][  T534] ------------[ cut here ]------------
| [ 49.838144][ T534] WARNING: CPU: 0 PID: 534 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) 
| [   49.838526][  T534] Modules linked in: netdevsim
| [   49.839055][  T534] Tainted: [W]=WARN
[   49.839203][  T534] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 49.839460][ T534] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 49.839719][ T534] 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
[   49.840393][  T534] RSP: 0000:ffffc90000e471e8 EFLAGS: 00010246
[   49.840645][  T534] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   49.840938][  T534] RDX: 0000000000000000 RSI: ffff8880099fac98 RDI: ffff888006225080
[   49.841245][  T534] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   49.841547][  T534] R10: ffffffffadfec1e7 R11: ffff8880062245c0 R12: 0000000000000000
[   49.841838][  T534] R13: ffff8880099fa128 R14: ffff8880099fa008 R15: ffff8880099fa000
[   49.842118][  T534] FS:  00007ff71cb0f800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   49.842534][  T534] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   49.842775][  T534] CR2: 00007f0752449e70 CR3: 0000000002b5c005 CR4: 0000000000772ef0
[   49.843056][  T534] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   49.843338][  T534] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   49.843633][  T534] PKRU: 55555554
[   49.843791][  T534] Call Trace:
[   49.843938][  T534]  <TASK>
[ 49.844036][ T534] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 49.844232][ T534] ? __warn (kernel/panic.c:748) 
[ 49.844379][ T534] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 49.844579][ T534] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 49.844780][ T534] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 49.844925][ T534] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 49.845121][ T534] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 49.845325][ T534] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 49.845556][ T534] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 49.845761][ T534] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 49.846004][ T534] ? _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) 
[ 49.846231][ T534] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 49.846441][ T534] register_netdevice (net/core/dev.c:11003) 
[ 49.846648][ T534] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 49.846859][ T534] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 49.847070][ T534] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 49.847328][ T534] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 49.847596][ T534] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 49.847854][ T534] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 49.848108][ T534] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 49.848366][ T534] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 49.848616][ T534] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 49.848867][ T534] devlink_reload (net/devlink/dev.c:474) 
[ 49.849088][ T534] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 49.849285][ T534] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 49.849488][ T534] ? cap_capable (security/commoncap.c:131) 
[ 49.849685][ T534] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 49.849907][ T534] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 49.850141][ T534] ? __nla_parse (lib/nlattr.c:732) 
[ 49.850341][ T534] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 49.850546][ T534] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 49.850812][ T534] ? cap_capable (security/commoncap.c:131) 
[ 49.851029][ T534] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 49.851235][ T534] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 49.851443][ T534] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 49.851634][ T534] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 49.851867][ T534] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 49.852104][ T534] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 49.852355][ T534] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 49.852556][ T534] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 49.852748][ T534] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 49.852940][ T534] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 49.853142][ T534] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 49.853285][ T534] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 49.853483][ T534] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 49.853685][ T534] genl_rcv (net/netlink/genetlink.c:1220) 
[ 49.853827][ T534] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 49.854020][ T534] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 49.854216][ T534] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 49.854422][ T534] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 49.854620][ T534] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 49.854808][ T534] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 49.855010][ T534] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 49.855208][ T534] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 49.855419][ T534] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 49.855622][ T534] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 49.855810][ T534] ? 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) 
[ 49.856001][ T534] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 49.856198][ T534] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 49.856399][ T534] ? 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) 
[ 49.856625][ T534] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 49.856822][ T534] __x64_sys_sendto (net/socket.c:2181) 
[ 49.857015][ T534] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 49.857278][ T534] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 49.857509][ T534] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   49.857746][  T534] RIP: 0033:0x7ff71cd1ba4a
[ 49.857946][ T534] Code: Unable to access opcode bytes at 0x7ff71cd1ba20.

Code starting with the faulting instruction
===========================================
[   49.858191][  T534] RSP: 002b:00007ffe99fb8028 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   49.858486][  T534] RAX: ffffffffffffffda RBX: 000000000516db00 RCX: 00007ff71cd1ba4a
[   49.858798][  T534] RDX: 000000000000003c RSI: 000000000516db00 RDI: 0000000000000005
[   49.859076][  T534] RBP: 000000000516d910 R08: 00007ff71cebf200 R09: 000000000000000c
[   49.859488][  T534] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   49.859776][  T534] R13: 000000000516d910 R14: 0000000000000000 R15: 0000000000000003
| [   49.875318][  T534] ------------[ cut here ]------------
| [ 49.875544][ T534] WARNING: CPU: 0 PID: 534 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) 
| [   49.875935][  T534] Modules linked in: netdevsim
| [   49.876505][  T534] Tainted: [W]=WARN
[   49.876651][  T534] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 49.876886][ T534] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 49.877129][ T534] 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
[   49.877798][  T534] RSP: 0000:ffffc90000e471e8 EFLAGS: 00010246
[   49.878042][  T534] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   49.878323][  T534] RDX: 0000000000000000 RSI: ffff888009b12c98 RDI: ffff888006225080
[   49.878631][  T534] RBP: ffffffffb0123440 R08: 0000000000000000 R09: fffffbfff5bfd83c
[   49.878928][  T534] R10: ffffffffadfec1e7 R11: ffff8880062245c0 R12: 0000000000000000
[   49.879215][  T534] R13: ffff888009b12128 R14: ffff888009b12008 R15: ffff888009b12000
[   49.879510][  T534] FS:  00007ff71cb0f800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   49.879848][  T534] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   49.880095][  T534] CR2: 00007f0751edb130 CR3: 0000000002b5c005 CR4: 0000000000772ef0
[   49.880390][  T534] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   49.880690][  T534] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   49.880996][  T534] PKRU: 55555554
[   49.881148][  T534] Call Trace:
[   49.881291][  T534]  <TASK>
[ 49.881395][ T534] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 49.881598][ T534] ? __warn (kernel/panic.c:748) 
[ 49.881745][ T534] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 49.881941][ T534] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 49.882139][ T534] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 49.882285][ T534] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 49.882490][ T534] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 49.882690][ T534] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 49.882885][ T534] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 49.883079][ T534] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 49.883320][ T534] ? _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) 
[ 49.883525][ T534] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 49.883724][ T534] register_netdevice (net/core/dev.c:11003) 
[ 49.883917][ T534] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 49.884118][ T534] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 49.884327][ T534] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 49.884578][ T534] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 49.884833][ T534] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 49.885083][ T534] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 49.885334][ T534] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 49.885589][ T534] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 49.885840][ T534] ? devlink_get_from_attrs_lock (net/devlink/netlink.c:196) 
[ 49.886098][ T534] devlink_reload (net/devlink/dev.c:474) 
[ 49.886293][ T534] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 49.886491][ T534] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 49.886692][ T534] ? cap_capable (security/commoncap.c:131) 
[ 49.886900][ T534] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 49.887092][ T534] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 49.887346][ T534] ? __nla_parse (lib/nlattr.c:732) 
[ 49.887566][ T534] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 49.887760][ T534] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 49.888017][ T534] ? cap_capable (security/commoncap.c:131) 
[ 49.888217][ T534] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 49.888425][ T534] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 49.888617][ T534] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 49.888808][ T534] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 49.889041][ T534] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 49.889278][ T534] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 49.889538][ T534] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 49.889732][ T534] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 49.889919][ T534] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 49.890115][ T534] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 49.890324][ T534] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 49.890615][ T534] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 49.890822][ T534] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 49.891139][ T534] genl_rcv (net/netlink/genetlink.c:1220) 
[ 49.891401][ T534] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 49.891608][ T534] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 49.891806][ T534] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 49.892031][ T534] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 49.892231][ T534] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 49.892427][ T534] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 49.892626][ T534] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 49.892834][ T534] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 49.893060][ T534] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 49.893270][ T534] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 49.893471][ T534] ? 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) 
[ 49.893661][ T534] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 49.893877][ T534] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 49.894071][ T534] ? 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) 
[ 49.894273][ T534] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 49.894485][ T534] __x64_sys_sendto (net/socket.c:2181) 
[ 49.894689][ T534] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 49.895039][ T534] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 49.895238][ T534] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   49.895479][  T534] RIP: 0033:0x7ff71cd1ba4a
[ 49.895795][ T534] Code: Unable to access opcode bytes at 0x7ff71cd1ba20.

Code starting with the faulting instruction
===========================================
[   49.896046][  T534] RSP: 002b:00007ffe99fb8028 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   49.896470][  T534] RAX: ffffffffffffffda RBX: 000000000516db00 RCX: 00007ff71cd1ba4a
[   49.896765][  T534] RDX: 000000000000003c RSI: 000000000516db00 RDI: 0000000000000005
[   49.897051][  T534] RBP: 000000000516d910 R08: 00007ff71cebf200 R09: 000000000000000c
[   49.897476][  T534] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200


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