======================================
| 0
| xx__-> [   29.068212][  T228] ------------[ cut here ]------------
| [ 29.068606][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
| [   29.069151][  T228] Modules linked in: netdevsim
[   29.069871][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 29.070333][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 29.070812][ T228] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  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
[   29.072042][  T228] RSP: 0018:ffffc90000a67520 EFLAGS: 00010246
[   29.072555][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   29.073170][  T228] RDX: 0000000000000000 RSI: ffff8880050c2c98 RDI: ffff88800b148b78
[   29.073708][  T228] RBP: ffffffffbb324440 R08: 0000000000000000 R09: fffffbfff723d844
[   29.074274][  T228] R10: ffffffffb91ec227 R11: ffff88800b148040 R12: 0000000000000000
[   29.075014][  T228] R13: ffff8880050c2128 R14: ffff8880050c2008 R15: ffff8880050c2000
[   29.075553][  T228] FS:  00007f7f1fd9e740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   29.075947][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.076268][  T228] CR2: 0000556959f22ac8 CR3: 000000000b298004 CR4: 0000000000772ef0
[   29.076611][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   29.076969][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   29.077330][  T228] PKRU: 55555554
[   29.077506][  T228] Call Trace:
[   29.077688][  T228]  <TASK>
[ 29.077812][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 29.078067][ T228] ? __warn (kernel/panic.c:748) 
[ 29.078264][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 29.078495][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 29.078725][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 29.078905][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 29.079157][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 29.079402][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 29.079636][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 29.079929][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 29.080185][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 29.080417][ T228] register_netdevice (net/core/dev.c:11033) 
[ 29.080692][ T228] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 29.080944][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 29.081198][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 29.081487][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 29.081665][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 29.081983][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 29.082285][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 29.082595][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 29.082843][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 29.083174][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 29.083413][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 29.083586][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 29.083817][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 29.084502][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 29.084887][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 29.085259][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 29.085628][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 29.086342][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 29.086692][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 29.087025][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 29.087584][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 29.087936][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 29.088307][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 29.088650][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 29.088997][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 29.089353][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 29.089711][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 29.090077][ T228] device_add (drivers/base/core.c:3672) 
[ 29.090415][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 29.090971][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 29.091344][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 29.091787][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 29.092267][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 29.092632][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 29.093009][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 29.093382][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 29.093745][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 29.094018][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 29.094262][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 29.094483][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 29.094712][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 29.094958][ T228] ksys_write (fs/read_write.c:731) 
[ 29.095142][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 29.095361][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 29.095603][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 29.095992][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   29.096329][  T228] RIP: 0033:0x7f7f1fedfb77
[ 29.096579][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   29.097520][  T228] RSP: 002b:00007ffe213a4668 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   29.098020][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7f1fedfb77
[   29.098365][  T228] RDX: 0000000000000007 RSI: 0000556959f21ac0 RDI: 0000000000000001
[   29.098696][  T228] RBP: 0000556959f21ac0 R08: 0000000000000003 R09: 0000000000000077
[   29.099182][  T228] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000007
[   29.099530][  T228] R13: 00007f7f1ff9b760 R14: 0000000000000007 R15: 00007f7f1ff969c0
| [   29.396505][  T253] ------------[ cut here ]------------
| [ 29.396889][ T253] WARNING: CPU: 2 PID: 253 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:10596) 
| [   29.397316][  T253] Modules linked in: netdevsim
| [   29.397974][  T253] Tainted: [W]=WARN
[   29.398194][  T253] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 29.398481][ T253] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 29.398797][ T253] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  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
[   29.399558][  T253] RSP: 0018:ffffc900004d71e8 EFLAGS: 00010246
[   29.399838][  T253] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   29.400161][  T253] RDX: 0000000000000000 RSI: ffff888008e8ac98 RDI: ffff888009d6adc0
[   29.400478][  T253] RBP: ffff88800b860040 R08: 0000000000000000 R09: fffffbfff723d844
[   29.400823][  T253] R10: ffffffffb91ec227 R11: ffff888009d6a300 R12: 0000000000000000
[   29.401142][  T253] R13: ffff888008e8a128 R14: ffff888008e8a008 R15: ffff888008e8a000
[   29.401476][  T253] FS:  00007ff126028800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   29.401884][  T253] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.402374][  T253] CR2: 00007ffdad7a6ff8 CR3: 0000000008be2005 CR4: 0000000000772ef0
[   29.402696][  T253] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   29.403041][  T253] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   29.403355][  T253] PKRU: 55555554
[   29.403516][  T253] Call Trace:
[   29.403670][  T253]  <TASK>
[ 29.403780][ T253] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 29.403989][ T253] ? __warn (kernel/panic.c:748) 
[ 29.404161][ T253] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 29.404368][ T253] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 29.404578][ T253] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 29.404786][ T253] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 29.405005][ T253] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 29.405233][ T253] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 29.405442][ T253] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 29.405659][ T253] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 29.405949][ T253] ? _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) 
[ 29.406177][ T253] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 29.406406][ T253] register_netdevice (net/core/dev.c:11033) 
[ 29.406627][ T253] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 29.406846][ T253] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 29.407189][ T253] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 29.407480][ T253] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 29.407961][ T253] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 29.408268][ T253] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 29.408551][ T253] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 29.408825][ T253] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 29.409110][ T253] devlink_reload (net/devlink/dev.c:474) 
[ 29.409331][ T253] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 29.409549][ T253] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 29.409784][ T253] ? cap_capable (security/commoncap.c:131) 
[ 29.409993][ T253] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 29.410177][ T253] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 29.410426][ T253] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 29.410738][ T253] ? __nla_parse (lib/nlattr.c:732) 
[ 29.410998][ T253] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 29.411245][ T253] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 29.411539][ T253] ? cap_capable (security/commoncap.c:131) 
[ 29.411763][ T253] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 29.412003][ T253] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 29.412224][ T253] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 29.412451][ T253] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 29.412722][ T253] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 29.413000][ T253] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 29.413316][ T253] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 29.413524][ T253] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 29.413752][ T253] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 29.413979][ T253] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 29.414247][ T253] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 29.414420][ T253] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 29.414639][ T253] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 29.414901][ T253] genl_rcv (net/netlink/genetlink.c:1220) 
[ 29.415087][ T253] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 29.415311][ T253] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 29.415527][ T253] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 29.415740][ T253] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 29.415973][ T253] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 29.416216][ T253] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 29.416483][ T253] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 29.416699][ T253] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 29.416950][ T253] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 29.417182][ T253] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 29.417416][ T253] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 29.417654][ T253] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 29.417883][ T253] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 29.418177][ T253] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 29.418400][ T253] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 29.418667][ T253] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 29.418887][ T253] __x64_sys_sendto (net/socket.c:2181) 
[ 29.419142][ T253] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 29.419428][ T253] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 29.419657][ T253] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   29.419932][  T253] RIP: 0033:0x7ff126234a4a
[ 29.420167][ T253] 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
[   29.420930][  T253] RSP: 002b:00007ffdaaa3fd48 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   29.421263][  T253] RAX: ffffffffffffffda RBX: 000000002e556b00 RCX: 00007ff126234a4a
[   29.421579][  T253] RDX: 0000000000000040 RSI: 000000002e556b00 RDI: 0000000000000005
[   29.421931][  T253] RBP: 000000002e556910 R08: 00007ff1263d8200 R09: 000000000000000c
[   29.422284][  T253] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   29.422614][  T253] R13: 000000002e556910 R14: 0000000000000000 R15: 0000000000000001
| [   30.655402][  T282] ------------[ cut here ]------------
| [ 30.655714][ T282] WARNING: CPU: 3 PID: 282 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:10596) 
| [   30.656264][  T282] Modules linked in: netdevsim
| [   30.656870][  T282] Tainted: [W]=WARN
[   30.657034][  T282] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 30.657393][ T282] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 30.657676][ T282] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  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
[   30.658507][  T282] RSP: 0018:ffffc900006371e8 EFLAGS: 00010246
[   30.658779][  T282] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   30.659184][  T282] RDX: 0000000000000000 RSI: ffff88800a512c98 RDI: ffff8880085fadc0
[   30.659505][  T282] RBP: ffff88800b860040 R08: 0000000000000000 R09: fffffbfff723d844
[   30.659820][  T282] R10: ffffffffb91ec227 R11: ffff8880085fa300 R12: 0000000000000000
[   30.660222][  T282] R13: ffff88800a512128 R14: ffff88800a512008 R15: ffff88800a512000
[   30.660539][  T282] FS:  00007f13019d8800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   30.660922][  T282] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.661277][  T282] CR2: 00007f1301d88200 CR3: 000000000d61e002 CR4: 0000000000772ef0
[   30.661597][  T282] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   30.661930][  T282] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   30.662264][  T282] PKRU: 55555554
[   30.662433][  T282] Call Trace:
[   30.662603][  T282]  <TASK>
[ 30.662719][ T282] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 30.662945][ T282] ? __warn (kernel/panic.c:748) 
[ 30.663126][ T282] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 30.663352][ T282] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 30.663578][ T282] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 30.663752][ T282] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 30.663971][ T282] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 30.664224][ T282] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 30.664451][ T282] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 30.664683][ T282] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 30.664959][ T282] ? _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) 
[ 30.665207][ T282] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 30.665430][ T282] register_netdevice (net/core/dev.c:11033) 
[ 30.665650][ T282] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 30.665879][ T282] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 30.666145][ T282] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 30.666430][ T282] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 30.666716][ T282] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 30.667020][ T282] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 30.667324][ T282] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 30.667609][ T282] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 30.667894][ T282] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 30.668130][ T282] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 30.668418][ T282] devlink_reload (net/devlink/dev.c:474) 
[ 30.668641][ T282] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 30.668860][ T282] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 30.669147][ T282] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 30.669395][ T282] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 30.669673][ T282] ? __nla_parse (lib/nlattr.c:732) 
[ 30.669903][ T282] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 30.670165][ T282] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 30.670458][ T282] ? cap_capable (security/commoncap.c:131) 
[ 30.670787][ T282] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 30.671018][ T282] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 30.671257][ T282] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 30.671526][ T282] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 30.671809][ T282] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 30.672092][ T282] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 30.672379][ T282] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 30.672603][ T282] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 30.672818][ T282] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 30.673042][ T282] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 30.673289][ T282] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 30.673456][ T282] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 30.673671][ T282] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 30.673953][ T282] genl_rcv (net/netlink/genetlink.c:1220) 
[ 30.674210][ T282] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 30.674550][ T282] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 30.674894][ T282] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 30.675216][ T282] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 30.675443][ T282] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 30.675658][ T282] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 30.675902][ T282] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 30.676145][ T282] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 30.676378][ T282] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 30.676603][ T282] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 30.676843][ T282] ? __sys_recvmsg (net/socket.c:2859) 
[ 30.677076][ T282] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 30.677314][ T282] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 30.677553][ T282] __x64_sys_sendto (net/socket.c:2181) 
[ 30.677793][ T282] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 30.678088][ T282] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 30.678327][ T282] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   30.678607][  T282] RIP: 0033:0x7f1301be4a4a
[ 30.678859][ T282] 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
[   30.679633][  T282] RSP: 002b:00007ffdf41d7c18 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   30.679972][  T282] RAX: ffffffffffffffda RBX: 0000000008696b00 RCX: 00007f1301be4a4a
[   30.680307][  T282] RDX: 0000000000000038 RSI: 0000000008696b00 RDI: 0000000000000005
[   30.680652][  T282] RBP: 0000000008696910 R08: 00007f1301d88200 R09: 000000000000000c
[   30.680994][  T282] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   30.681340][  T282] R13: 0000000008696910 R14: 0000000000000000 R15: 0000000000000003
| [   31.418629][  T292] ------------[ cut here ]------------
| [ 31.418919][ T292] WARNING: CPU: 3 PID: 292 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:10596) 
| [   31.419347][  T292] Modules linked in: netdevsim
| [   31.419958][  T292] Tainted: [W]=WARN
[   31.420138][  T292] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.420386][ T292] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 31.420659][ T292] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   31.421456][  T292] RSP: 0018:ffffc900006971e8 EFLAGS: 00010246
[   31.421713][  T292] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   31.422032][  T292] RDX: 0000000000000000 RSI: ffff88800296ac98 RDI: ffff88800b14d080
[   31.422422][  T292] RBP: ffff88800b860040 R08: 0000000000000000 R09: fffffbfff723d844
[   31.422704][  T292] R10: ffffffffb91ec227 R11: ffff88800b14c5c0 R12: 0000000000000000
[   31.422987][  T292] R13: ffff88800296a128 R14: ffff88800296a008 R15: ffff88800296a000
[   31.423307][  T292] FS:  00007f2948136800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   31.423652][  T292] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.423895][  T292] CR2: 00007f29484e6200 CR3: 0000000004b64001 CR4: 0000000000772ef0
[   31.424208][  T292] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   31.424492][  T292] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   31.424784][  T292] PKRU: 55555554
[   31.424929][  T292] Call Trace:
[   31.425090][  T292]  <TASK>
[ 31.425191][ T292] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 31.425391][ T292] ? __warn (kernel/panic.c:748) 
[ 31.425545][ T292] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 31.425739][ T292] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 31.425949][ T292] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 31.426121][ T292] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 31.426316][ T292] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 31.426526][ T292] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 31.426721][ T292] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 31.426919][ T292] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 31.427189][ T292] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 31.427426][ T292] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 31.427623][ T292] register_netdevice (net/core/dev.c:11033) 
[ 31.427820][ T292] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 31.428024][ T292] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 31.428263][ T292] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 31.428512][ T292] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 31.428775][ T292] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 31.429027][ T292] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 31.429300][ T292] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 31.429545][ T292] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 31.429789][ T292] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 31.429978][ T292] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 31.430262][ T292] devlink_reload (net/devlink/dev.c:474) 
[ 31.430461][ T292] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 31.430667][ T292] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 31.430916][ T292] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 31.431140][ T292] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 31.431384][ T292] ? __nla_parse (lib/nlattr.c:732) 
[ 31.431588][ T292] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 31.431794][ T292] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 31.432079][ T292] ? cap_capable (security/commoncap.c:131) 
[ 31.432280][ T292] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 31.432483][ T292] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 31.432681][ T292] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 31.432872][ T292] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 31.433138][ T292] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 31.433410][ T292] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 31.433665][ T292] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 31.433876][ T292] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 31.434086][ T292] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 31.434284][ T292] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 31.434491][ T292] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 31.434655][ T292] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 31.434853][ T292] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 31.435079][ T292] genl_rcv (net/netlink/genetlink.c:1220) 
[ 31.435241][ T292] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 31.435441][ T292] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 31.435637][ T292] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 31.435837][ T292] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 31.436095][ T292] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 31.436304][ T292] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 31.436503][ T292] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 31.436718][ T292] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 31.436920][ T292] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 31.437149][ T292] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 31.437352][ T292] ? __sys_recvmsg (net/socket.c:2859) 
[ 31.437555][ T292] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 31.437764][ T292] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 31.437982][ T292] __x64_sys_sendto (net/socket.c:2181) 
[ 31.438197][ T292] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 31.438450][ T292] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 31.438656][ T292] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.438922][  T292] RIP: 0033:0x7f2948342a4a
[ 31.439142][ T292] 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
[   31.439810][  T292] RSP: 002b:00007fff1353dbc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   31.440126][  T292] RAX: ffffffffffffffda RBX: 000000003cc68b00 RCX: 00007f2948342a4a
[   31.440408][  T292] RDX: 0000000000000038 RSI: 000000003cc68b00 RDI: 0000000000000005
[   31.440737][  T292] RBP: 000000003cc68910 R08: 00007f29484e6200 R09: 000000000000000c
[   31.441025][  T292] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   31.441332][  T292] R13: 000000003cc68910 R14: 0000000000000000 R15: 0000000000000003
| [   33.324680][  T337] ------------[ cut here ]------------
| [ 33.325175][ T337] WARNING: CPU: 2 PID: 337 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:10596) 
| [   33.325869][  T337] Modules linked in: netdevsim
| [   33.326858][  T337] Tainted: [W]=WARN
[   33.327174][  T337] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 33.327590][ T337] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 33.328092][ T337] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   33.329239][  T337] RSP: 0018:ffffc900008771e8 EFLAGS: 00010246
[   33.329662][  T337] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   33.330181][  T337] RDX: 0000000000000000 RSI: ffff888009112c98 RDI: ffff88800d4d8b00
[   33.330703][  T337] RBP: ffff88800b860040 R08: 0000000000000000 R09: fffffbfff723d844
[   33.331208][  T337] R10: ffffffffb91ec227 R11: ffff88800d4d8040 R12: 0000000000000000
[   33.331694][  T337] R13: ffff888009112128 R14: ffff888009112008 R15: ffff888009112000
[   33.332201][  T337] FS:  00007f10be493800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   33.332781][  T337] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   33.333213][  T337] CR2: 00007f10be934050 CR3: 000000000a4d2003 CR4: 0000000000772ef0
[   33.333729][  T337] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   33.334239][  T337] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   33.334743][  T337] PKRU: 55555554
[   33.335011][  T337] Call Trace:
[   33.335335][  T337]  <TASK>
[ 33.335528][ T337] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 33.335879][ T337] ? __warn (kernel/panic.c:748) 
[ 33.336168][ T337] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 33.336545][ T337] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 33.336901][ T337] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 33.337191][ T337] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 33.337563][ T337] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 33.337915][ T337] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 33.338296][ T337] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 33.338686][ T337] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 33.339151][ T337] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 33.339632][ T337] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 33.340009][ T337] register_netdevice (net/core/dev.c:11033) 
[ 33.340425][ T337] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 33.340837][ T337] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 33.341261][ T337] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 33.341744][ T337] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 33.342249][ T337] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 33.342722][ T337] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 33.343217][ T337] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 33.343673][ T337] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 33.344162][ T337] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 33.344525][ T337] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 33.344997][ T337] devlink_reload (net/devlink/dev.c:474) 
[ 33.345399][ T337] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 33.345785][ T337] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 33.346281][ T337] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 33.346648][ T337] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 33.347113][ T337] ? __nla_parse (lib/nlattr.c:732) 
[ 33.347500][ T337] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 33.347866][ T337] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 33.348360][ T337] ? cap_capable (security/commoncap.c:131) 
[ 33.348732][ T337] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 33.349125][ T337] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 33.349500][ T337] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 33.349876][ T337] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 33.350345][ T337] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 33.350803][ T337] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 33.351298][ T337] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 33.351664][ T337] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 33.352023][ T337] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 33.352420][ T337] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 33.352815][ T337] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 33.353115][ T337] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 33.353484][ T337] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 33.353858][ T337] genl_rcv (net/netlink/genetlink.c:1220) 
[ 33.354165][ T337] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 33.354543][ T337] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 33.354913][ T337] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 33.355315][ T337] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 33.355686][ T337] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 33.356068][ T337] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 33.356442][ T337] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 33.356835][ T337] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 33.357257][ T337] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 33.357646][ T337] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 33.358021][ T337] ? __sys_recvmsg (net/socket.c:2859) 
[ 33.358390][ T337] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 33.358746][ T337] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 33.359122][ T337] __x64_sys_sendto (net/socket.c:2181) 
[ 33.359464][ T337] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 33.359882][ T337] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 33.360269][ T337] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   33.360790][  T337] RIP: 0033:0x7f10be69fa4a
[ 33.361163][ T337] 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
[   33.362293][  T337] RSP: 002b:00007ffe70eaa168 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   33.362809][  T337] RAX: ffffffffffffffda RBX: 0000000032b0cb00 RCX: 00007f10be69fa4a
[   33.363327][  T337] RDX: 0000000000000038 RSI: 0000000032b0cb00 RDI: 0000000000000005
[   33.363815][  T337] RBP: 0000000032b0c910 R08: 00007f10be843200 R09: 000000000000000c
[   33.364332][  T337] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   33.364853][  T337] R13: 0000000032b0c910 R14: 0000000000000000 R15: 0000000000000003
| [   34.228896][  T348] ------------[ cut here ]------------
| [ 34.229401][ T348] WARNING: CPU: 2 PID: 348 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:10596) 
| [   34.230089][  T348] Modules linked in: netdevsim
| [   34.231103][  T348] Tainted: [W]=WARN
[   34.231374][  T348] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 34.231822][ T348] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 34.232277][ T348] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  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
[   34.233429][  T348] RSP: 0018:ffffc900008e71e8 EFLAGS: 00010246
[   34.233850][  T348] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   34.234359][  T348] RDX: 0000000000000000 RSI: ffff8880050c2c98 RDI: ffff88800bc00b00
[   34.234828][  T348] RBP: ffff88800b860040 R08: 0000000000000000 R09: fffffbfff723d844
[   34.235340][  T348] R10: ffffffffb91ec227 R11: ffff88800bc00040 R12: 0000000000000000
[   34.235829][  T348] R13: ffff8880050c2128 R14: ffff8880050c2008 R15: ffff8880050c2000
[   34.236512][  T348] FS:  00007f952979f800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   34.237240][  T348] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.237672][  T348] CR2: 00007f9529b4f200 CR3: 0000000004eba006 CR4: 0000000000772ef0
[   34.238182][  T348] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   34.238677][  T348] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   34.239223][  T348] PKRU: 55555554
[   34.239484][  T348] Call Trace:
[   34.239769][  T348]  <TASK>
[ 34.239934][ T348] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 34.240306][ T348] ? __warn (kernel/panic.c:748) 
[ 34.240558][ T348] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 34.241004][ T348] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 34.241409][ T348] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 34.241613][ T348] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 34.241827][ T348] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 34.242124][ T348] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 34.242360][ T348] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 34.242591][ T348] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 34.242854][ T348] ? _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) 
[ 34.243112][ T348] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 34.243353][ T348] register_netdevice (net/core/dev.c:11033) 
[ 34.243580][ T348] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 34.243797][ T348] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 34.244026][ T348] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 34.244311][ T348] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 34.244584][ T348] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 34.244848][ T348] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 34.245153][ T348] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 34.245413][ T348] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 34.245677][ T348] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 34.245882][ T348] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 34.246184][ T348] devlink_reload (net/devlink/dev.c:474) 
[ 34.246408][ T348] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 34.246623][ T348] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 34.246885][ T348] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 34.247122][ T348] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 34.247374][ T348] ? __nla_parse (lib/nlattr.c:732) 
[ 34.247605][ T348] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 34.247812][ T348] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 34.248115][ T348] ? cap_capable (security/commoncap.c:131) 
[ 34.248330][ T348] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 34.248541][ T348] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 34.248756][ T348] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 34.248974][ T348] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 34.249261][ T348] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 34.249524][ T348] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 34.249797][ T348] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 34.250012][ T348] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 34.250254][ T348] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 34.250462][ T348] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 34.250705][ T348] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 34.250878][ T348] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 34.251117][ T348] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 34.251333][ T348] genl_rcv (net/netlink/genetlink.c:1220) 
[ 34.251496][ T348] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 34.251705][ T348] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 34.251911][ T348] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 34.252148][ T348] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 34.252362][ T348] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 34.252576][ T348] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 34.252783][ T348] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 34.253001][ T348] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 34.253236][ T348] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 34.253452][ T348] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 34.253662][ T348] ? __sys_recvmsg (net/socket.c:2859) 
[ 34.253868][ T348] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 34.254127][ T348] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 34.254352][ T348] __x64_sys_sendto (net/socket.c:2181) 
[ 34.254560][ T348] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 34.254812][ T348] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 34.255032][ T348] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   34.255307][  T348] RIP: 0033:0x7f95299aba4a
[ 34.255520][ T348] 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
[   34.256218][  T348] RSP: 002b:00007ffe03009e68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   34.256518][  T348] RAX: ffffffffffffffda RBX: 00000000097d6b00 RCX: 00007f95299aba4a
[   34.256815][  T348] RDX: 0000000000000038 RSI: 00000000097d6b00 RDI: 0000000000000005
[   34.257244][  T348] RBP: 00000000097d6910 R08: 00007f9529b4f200 R09: 000000000000000c
[   34.257709][  T348] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   34.258240][  T348] R13: 00000000097d6910 R14: 0000000000000000 R15: 0000000000000003
| [   36.569447][  T409] ------------[ cut here ]------------
| [ 36.569785][ T409] WARNING: CPU: 2 PID: 409 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:10596) 
| [   36.570246][  T409] Modules linked in: netdevsim
| [   36.570903][  T409] Tainted: [W]=WARN
[   36.571082][  T409] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 36.571351][ T409] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 36.571613][ T409] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  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
[   36.572380][  T409] RSP: 0018:ffffc90000b871e8 EFLAGS: 00010246
[   36.572646][  T409] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   36.572960][  T409] RDX: 0000000000000000 RSI: ffff88800a7c2c98 RDI: ffff88800b15adc0
[   36.573348][  T409] RBP: ffff88800b860040 R08: 0000000000000000 R09: fffffbfff723d844
[   36.573648][  T409] R10: ffffffffb91ec227 R11: ffff88800b15a300 R12: 0000000000000000
[   36.573958][  T409] R13: ffff88800a7c2128 R14: ffff88800a7c2008 R15: ffff88800a7c2000
[   36.574277][  T409] FS:  00007f0f2b365800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   36.574623][  T409] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.574889][  T409] CR2: 00007f7f1fd9d258 CR3: 000000000b012002 CR4: 0000000000772ef0
[   36.575229][  T409] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   36.575691][  T409] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   36.576038][  T409] PKRU: 55555554
[   36.576290][  T409] Call Trace:
[   36.576501][  T409]  <TASK>
[ 36.576683][ T409] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 36.576953][ T409] ? __warn (kernel/panic.c:748) 
[ 36.577194][ T409] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 36.577424][ T409] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 36.577686][ T409] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 36.577926][ T409] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 36.578173][ T409] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 36.578445][ T409] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 36.578708][ T409] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 36.578949][ T409] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 36.579317][ T409] ? _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) 
[ 36.579563][ T409] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 36.579848][ T409] register_netdevice (net/core/dev.c:11033) 
[ 36.580128][ T409] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 36.580429][ T409] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 36.580700][ T409] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 36.581072][ T409] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 36.581378][ T409] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 36.581674][ T409] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 36.582009][ T409] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 36.582340][ T409] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 36.582684][ T409] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 36.582937][ T409] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 36.583303][ T409] devlink_reload (net/devlink/dev.c:474) 
[ 36.583603][ T409] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 36.583851][ T409] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 36.584215][ T409] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 36.584449][ T409] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 36.584803][ T409] ? __nla_parse (lib/nlattr.c:732) 
[ 36.585068][ T409] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 36.585374][ T409] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 36.585678][ T409] ? cap_capable (security/commoncap.c:131) 
[ 36.585980][ T409] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 36.586298][ T409] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 36.586536][ T409] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 36.586829][ T409] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 36.587195][ T409] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 36.587527][ T409] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 36.587817][ T409] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 36.588120][ T409] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 36.588404][ T409] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 36.588710][ T409] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 36.589106][ T409] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 36.589363][ T409] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 36.589707][ T409] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 36.590016][ T409] genl_rcv (net/netlink/genetlink.c:1220) 
[ 36.590263][ T409] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 36.590534][ T409] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 36.590821][ T409] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 36.591117][ T409] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 36.591393][ T409] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 36.591656][ T409] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 36.591944][ T409] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 36.592289][ T409] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 36.592566][ T409] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 36.592864][ T409] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 36.593207][ T409] ? __sys_recvmsg (net/socket.c:2859) 
[ 36.593568][ T409] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 36.593905][ T409] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 36.594228][ T409] __x64_sys_sendto (net/socket.c:2181) 
[ 36.594530][ T409] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 36.594893][ T409] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 36.595213][ T409] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   36.595631][  T409] RIP: 0033:0x7f0f2b571a4a
[ 36.596022][ T409] 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
[   36.597289][  T409] RSP: 002b:00007ffc0b18e4b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   36.597806][  T409] RAX: ffffffffffffffda RBX: 00000000031a9b00 RCX: 00007f0f2b571a4a
[   36.598212][  T409] RDX: 0000000000000038 RSI: 00000000031a9b00 RDI: 0000000000000005
[   36.598610][  T409] RBP: 00000000031a9910 R08: 00007f0f2b715200 R09: 000000000000000c
[   36.598941][  T409] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   36.599380][  T409] R13: 00000000031a9910 R14: 0000000000000000 R15: 0000000000000003
| [   37.410273][  T420] ------------[ cut here ]------------
| [ 37.410543][ T420] WARNING: CPU: 3 PID: 420 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:10596) 
| [   37.410994][  T420] Modules linked in: netdevsim
| [   37.411579][  T420] Tainted: [W]=WARN
[   37.411743][  T420] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 37.412011][ T420] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 37.412306][ T420] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  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
[   37.413043][  T420] RSP: 0018:ffffc90000bf71e8 EFLAGS: 00010246
[   37.413332][  T420] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   37.413656][  T420] RDX: 0000000000000000 RSI: ffff888008e8ac98 RDI: ffff888009c8d080
[   37.413997][  T420] RBP: ffff88800b860040 R08: 0000000000000000 R09: fffffbfff723d844
[   37.414310][  T420] R10: ffffffffb91ec227 R11: ffff888009c8c5c0 R12: 0000000000000000
[   37.414637][  T420] R13: ffff888008e8a128 R14: ffff888008e8a008 R15: ffff888008e8a000
[   37.414985][  T420] FS:  00007f1119b0b800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   37.415415][  T420] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   37.415661][  T420] CR2: 00007f1119ebb200 CR3: 000000000b2e8002 CR4: 0000000000772ef0
[   37.415960][  T420] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   37.416291][  T420] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   37.416589][  T420] PKRU: 55555554
[   37.416745][  T420] Call Trace:
[   37.416902][  T420]  <TASK>
[ 37.417015][ T420] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 37.417274][ T420] ? __warn (kernel/panic.c:748) 
[ 37.417491][ T420] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 37.417719][ T420] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 37.417933][ T420] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 37.418144][ T420] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 37.418379][ T420] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 37.418611][ T420] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 37.418827][ T420] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 37.419044][ T420] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 37.419334][ T420] ? _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) 
[ 37.419560][ T420] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 37.419779][ T420] register_netdevice (net/core/dev.c:11033) 
[ 37.420017][ T420] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 37.420256][ T420] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 37.420486][ T420] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 37.420774][ T420] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 37.421076][ T420] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 37.421354][ T420] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 37.421628][ T420] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 37.421899][ T420] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 37.422188][ T420] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 37.422419][ T420] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 37.422697][ T420] devlink_reload (net/devlink/dev.c:474) 
[ 37.422915][ T420] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 37.423139][ T420] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 37.423409][ T420] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 37.423624][ T420] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 37.423891][ T420] ? __nla_parse (lib/nlattr.c:732) 
[ 37.424125][ T420] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 37.424341][ T420] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 37.424619][ T420] ? cap_capable (security/commoncap.c:131) 
[ 37.424828][ T420] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 37.425030][ T420] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 37.425316][ T420] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 37.425521][ T420] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 37.425801][ T420] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 37.426082][ T420] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 37.426357][ T420] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 37.426604][ T420] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 37.426807][ T420] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 37.427019][ T420] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 37.427268][ T420] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 37.427449][ T420] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 37.427680][ T420] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 37.427943][ T420] genl_rcv (net/netlink/genetlink.c:1220) 
[ 37.428130][ T420] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 37.428363][ T420] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 37.428588][ T420] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 37.428803][ T420] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 37.429018][ T420] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 37.429230][ T420] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 37.429432][ T420] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 37.429645][ T420] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 37.429852][ T420] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 37.430105][ T420] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 37.430320][ T420] ? __sys_recvmsg (net/socket.c:2859) 
[ 37.430523][ T420] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 37.430902][ T420] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 37.431134][ T420] __x64_sys_sendto (net/socket.c:2181) 
[ 37.431339][ T420] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 37.431591][ T420] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 37.431800][ T420] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   37.432101][  T420] RIP: 0033:0x7f1119d17a4a
[ 37.432312][ T420] 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
[   37.433040][  T420] RSP: 002b:00007fff8ad59e48 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   37.433383][  T420] RAX: ffffffffffffffda RBX: 000000002510ab00 RCX: 00007f1119d17a4a
[   37.433686][  T420] RDX: 0000000000000038 RSI: 000000002510ab00 RDI: 0000000000000005
[   37.433991][  T420] RBP: 000000002510a910 R08: 00007f1119ebb200 R09: 000000000000000c
[   37.434315][  T420] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   37.434666][  T420] R13: 000000002510a910 R14: 0000000000000000 R15: 0000000000000003
| [   38.743895][  T452] ------------[ cut here ]------------
| [ 38.744328][ T452] WARNING: CPU: 3 PID: 452 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:10596) 
| [   38.744990][  T452] Modules linked in: netdevsim
| [   38.746715][  T452] Tainted: [W]=WARN
[   38.746970][  T452] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 38.747403][ T452] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 38.747836][ T452] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  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
[   38.749002][  T452] RSP: 0018:ffffc90000d671e8 EFLAGS: 00010246
[   38.749444][  T452] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   38.749937][  T452] RDX: 0000000000000000 RSI: ffff88800a512c98 RDI: ffff888009a80b00
[   38.750443][  T452] RBP: ffff88800b860040 R08: 0000000000000000 R09: fffffbfff723d844
[   38.751001][  T452] R10: ffffffffb91ec227 R11: ffff888009a80040 R12: 0000000000000000
[   38.751526][  T452] R13: ffff88800a512128 R14: ffff88800a512008 R15: ffff88800a512000
[   38.752019][  T452] FS:  00007f1c1b928800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   38.752622][  T452] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   38.753065][  T452] CR2: 00007f1c1bcd8200 CR3: 0000000008988002 CR4: 0000000000772ef0
[   38.753565][  T452] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   38.754084][  T452] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   38.754586][  T452] PKRU: 55555554
[   38.754840][  T452] Call Trace:
[   38.755108][  T452]  <TASK>
[ 38.755288][ T452] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 38.755626][ T452] ? __warn (kernel/panic.c:748) 
[ 38.755887][ T452] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 38.756262][ T452] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 38.756612][ T452] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 38.756867][ T452] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 38.757221][ T452] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 38.757577][ T452] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 38.757920][ T452] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 38.758298][ T452] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 38.758735][ T452] ? _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) 
[ 38.759097][ T452] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 38.759441][ T452] register_netdevice (net/core/dev.c:11033) 
[ 38.759788][ T452] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 38.760167][ T452] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 38.760558][ T452] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 38.760982][ T452] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 38.761456][ T452] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 38.761915][ T452] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 38.762374][ T452] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 38.762804][ T452] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 38.763254][ T452] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 38.763600][ T452] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 38.764023][ T452] devlink_reload (net/devlink/dev.c:474) 
[ 38.764391][ T452] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 38.764734][ T452] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 38.765190][ T452] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 38.765528][ T452] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 38.765932][ T452] ? __nla_parse (lib/nlattr.c:732) 
[ 38.766300][ T452] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 38.766634][ T452] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 38.767085][ T452] ? cap_capable (security/commoncap.c:131) 
[ 38.767423][ T452] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 38.767763][ T452] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 38.768110][ T452] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 38.768449][ T452] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 38.768867][ T452] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 38.769302][ T452] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 38.769744][ T452] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 38.770102][ T452] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 38.770438][ T452] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 38.770822][ T452] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 38.771070][ T452] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 38.771222][ T452] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 38.771526][ T452] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 38.771873][ T452] genl_rcv (net/netlink/genetlink.c:1220) 
[ 38.772141][ T452] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 38.772476][ T452] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 38.772820][ T452] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 38.773192][ T452] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 38.773533][ T452] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 38.773886][ T452] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 38.774234][ T452] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 38.774576][ T452] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 38.774901][ T452] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 38.775259][ T452] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 38.775609][ T452] ? __sys_recvmsg (net/socket.c:2859) 
[ 38.775931][ T452] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 38.776291][ T452] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 38.776610][ T452] __x64_sys_sendto (net/socket.c:2181) 
[ 38.776931][ T452] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 38.777271][ T452] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 38.777497][ T452] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   38.777885][  T452] RIP: 0033:0x7f1c1bb34a4a
[ 38.778243][ T452] 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
[   38.779161][  T452] RSP: 002b:00007ffd75b39078 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   38.779458][  T452] RAX: ffffffffffffffda RBX: 0000000006e25b00 RCX: 00007f1c1bb34a4a
[   38.779735][  T452] RDX: 0000000000000038 RSI: 0000000006e25b00 RDI: 0000000000000005
[   38.780031][  T452] RBP: 0000000006e25910 R08: 00007f1c1bcd8200 R09: 000000000000000c
[   38.780333][  T452] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   38.780624][  T452] R13: 0000000006e25910 R14: 0000000000000000 R15: 0000000000000003
| [   39.865580][  T468] ------------[ cut here ]------------
| [ 39.865930][ T468] WARNING: CPU: 2 PID: 468 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:10596) 
| [   39.866479][  T468] Modules linked in: netdevsim
| [   39.867138][  T468] Tainted: [W]=WARN
[   39.867374][  T468] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 39.867661][ T468] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 39.867967][ T468] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  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
[   39.868800][  T468] RSP: 0018:ffffc90000dd71e8 EFLAGS: 00010246
[   39.869206][  T468] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   39.869654][  T468] RDX: 0000000000000000 RSI: ffff88800296ac98 RDI: ffff88800a492dc0
[   39.870096][  T468] RBP: ffff88800b860040 R08: 0000000000000000 R09: fffffbfff723d844
[   39.870520][  T468] R10: ffffffffb91ec227 R11: ffff88800a492300 R12: 0000000000000000
[   39.870965][  T468] R13: ffff88800296a128 R14: ffff88800296a008 R15: ffff88800296a000
[   39.871403][  T468] FS:  00007f4731762800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   39.871863][  T468] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.872190][  T468] CR2: 00007f4731b12200 CR3: 000000000b2a0003 CR4: 0000000000772ef0
[   39.872542][  T468] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   39.872872][  T468] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   39.873224][  T468] PKRU: 55555554
[   39.873407][  T468] Call Trace:
[   39.873575][  T468]  <TASK>
[ 39.873710][ T468] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 39.873939][ T468] ? __warn (kernel/panic.c:748) 
[ 39.874159][ T468] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 39.874387][ T468] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 39.874613][ T468] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 39.874785][ T468] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 39.875005][ T468] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 39.875266][ T468] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 39.875499][ T468] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 39.875718][ T468] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 39.875994][ T468] ? _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) 
[ 39.876264][ T468] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 39.876495][ T468] register_netdevice (net/core/dev.c:11033) 
[ 39.876731][ T468] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 39.876999][ T468] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 39.877238][ T468] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 39.877510][ T468] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 39.877825][ T468] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 39.878147][ T468] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 39.878436][ T468] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 39.878702][ T468] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 39.878964][ T468] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 39.879203][ T468] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 39.879496][ T468] devlink_reload (net/devlink/dev.c:474) 
[ 39.879713][ T468] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 39.879952][ T468] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 39.880408][ T468] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 39.880676][ T468] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 39.880938][ T468] ? __nla_parse (lib/nlattr.c:732) 
[ 39.881241][ T468] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 39.881581][ T468] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 39.882040][ T468] ? cap_capable (security/commoncap.c:131) 
[ 39.882428][ T468] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 39.882799][ T468] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 39.883189][ T468] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 39.883549][ T468] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 39.883969][ T468] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 39.884445][ T468] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 39.884900][ T468] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 39.885264][ T468] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 39.885619][ T468] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 39.885981][ T468] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 39.886366][ T468] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 39.886629][ T468] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 39.886975][ T468] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 39.887379][ T468] genl_rcv (net/netlink/genetlink.c:1220) 
[ 39.887585][ T468] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 39.887812][ T468] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 39.888033][ T468] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 39.888320][ T468] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 39.888545][ T468] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 39.888763][ T468] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 39.888993][ T468] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 39.889231][ T468] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 39.889476][ T468] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 39.889707][ T468] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 39.889934][ T468] ? __sys_recvmsg (net/socket.c:2859) 
[ 39.890176][ T468] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 39.890410][ T468] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 39.890670][ T468] __x64_sys_sendto (net/socket.c:2181) 
[ 39.890891][ T468] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 39.891192][ T468] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 39.891421][ T468] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   39.891688][  T468] RIP: 0033:0x7f473196ea4a
[ 39.891913][ T468] 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
[   39.892670][  T468] RSP: 002b:00007fff1a0edfc8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   39.892996][  T468] RAX: ffffffffffffffda RBX: 000000002d7a5b00 RCX: 00007f473196ea4a
[   39.893351][  T468] RDX: 0000000000000038 RSI: 000000002d7a5b00 RDI: 0000000000000005
[   39.893670][  T468] RBP: 000000002d7a5910 R08: 00007f4731b12200 R09: 000000000000000c
[   39.893989][  T468] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   39.894414][  T468] R13: 000000002d7a5910 R14: 0000000000000000 R15: 0000000000000003
| [  316.062640][  T982] ------------[ cut here ]------------
| [ 316.062906][ T982] WARNING: CPU: 3 PID: 982 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:10596) 
| [  316.063378][  T982] Modules linked in: netdevsim
| [  316.063974][  T982] Tainted: [W]=WARN
[  316.064153][  T982] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 316.064424][ T982] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 316.064695][ T982] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  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
[  316.065443][  T982] RSP: 0018:ffffc90001ea71e8 EFLAGS: 00010246
[  316.065718][  T982] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  316.066029][  T982] RDX: 0000000000000000 RSI: ffff888009112c98 RDI: ffff88800a492dc0
[  316.066352][  T982] RBP: ffff88800b860040 R08: 0000000000000000 R09: fffffbfff723d844
[  316.066660][  T982] R10: ffffffffb91ec227 R11: ffff88800a492300 R12: 0000000000000000
[  316.066979][  T982] R13: ffff888009112128 R14: ffff888009112008 R15: ffff888009112000
[  316.067310][  T982] FS:  00007f2d8315d800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  316.067678][  T982] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  316.067938][  T982] CR2: 00007f2d8350d200 CR3: 0000000009e74003 CR4: 0000000000772ef0
[  316.068264][  T982] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  316.068581][  T982] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  316.068889][  T982] PKRU: 55555554
[  316.069062][  T982] Call Trace:
[  316.069232][  T982]  <TASK>
[ 316.069342][ T982] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 316.069547][ T982] ? __warn (kernel/panic.c:748) 
[ 316.069701][ T982] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 316.069897][ T982] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 316.070121][ T982] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 316.070276][ T982] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 316.070471][ T982] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 316.070678][ T982] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 316.070880][ T982] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 316.071086][ T982] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 316.071335][ T982] ? _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) 
[ 316.071534][ T982] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 316.071735][ T982] register_netdevice (net/core/dev.c:11033) 
[ 316.071980][ T982] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 316.072217][ T982] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 316.072431][ T982] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 316.072686][ T982] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 316.072944][ T982] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 316.073222][ T982] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 316.073485][ T982] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 316.073729][ T982] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 316.073975][ T982] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 316.074191][ T982] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 316.074447][ T982] devlink_reload (net/devlink/dev.c:474) 
[ 316.074652][ T982] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 316.074848][ T982] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 316.075110][ T982] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 316.075306][ T982] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 316.075559][ T982] ? __nla_parse (lib/nlattr.c:732) 
[ 316.075764][ T982] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 316.075961][ T982] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 316.076224][ T982] ? cap_capable (security/commoncap.c:131) 
[ 316.076421][ T982] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 316.076625][ T982] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 316.076853][ T982] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 316.077082][ T982] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 316.077346][ T982] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 316.077597][ T982] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 316.077874][ T982] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 316.078109][ T982] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 316.078306][ T982] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 316.078502][ T982] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 316.078726][ T982] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 316.078883][ T982] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 316.079108][ T982] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 316.079311][ T982] genl_rcv (net/netlink/genetlink.c:1220) 
[ 316.079460][ T982] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 316.079658][ T982] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 316.079856][ T982] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 316.080074][ T982] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 316.080280][ T982] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 316.080472][ T982] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 316.080700][ T982] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 316.080919][ T982] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 316.081143][ T982] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 316.081360][ T982] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 316.081571][ T982] ? __sys_recvmsg (net/socket.c:2859) 
[ 316.081771][ T982] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 316.081982][ T982] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 316.082205][ T982] __x64_sys_sendto (net/socket.c:2181) 
[ 316.082405][ T982] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 316.082651][ T982] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 316.082850][ T982] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  316.083106][  T982] RIP: 0033:0x7f2d83369a4a
[ 316.083314][ T982] 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
[  316.084010][  T982] RSP: 002b:00007ffcff11e4f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  316.084350][  T982] RAX: ffffffffffffffda RBX: 00000000390f6b00 RCX: 00007f2d83369a4a
[  316.084652][  T982] RDX: 0000000000000038 RSI: 00000000390f6b00 RDI: 0000000000000005
[  316.084962][  T982] RBP: 00000000390f6910 R08: 00007f2d8350d200 R09: 000000000000000c
[  316.085301][  T982] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[  316.085625][  T982] R13: 00000000390f6910 R14: 0000000000000000 R15: 0000000000000003
| [  316.919945][  T996] ------------[ cut here ]------------
| [ 316.920759][ T996] WARNING: CPU: 3 PID: 996 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:10596) 
| [  316.921257][  T996] Modules linked in: netdevsim
| [  316.921881][  T996] Tainted: [W]=WARN
[  316.922086][  T996] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 316.922357][ T996] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 316.922667][ T996] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  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
[  316.923472][  T996] RSP: 0018:ffffc90001f071e8 EFLAGS: 00010246
[  316.923769][  T996] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  316.924091][  T996] RDX: 0000000000000000 RSI: ffff8880050c2c98 RDI: ffff888009a90b00
[  316.924385][  T996] RBP: ffff88800b860040 R08: 0000000000000000 R09: fffffbfff723d844
[  316.924697][  T996] R10: ffffffffb91ec227 R11: ffff888009a90040 R12: 0000000000000000
[  316.924990][  T996] R13: ffff8880050c2128 R14: ffff8880050c2008 R15: ffff8880050c2000
[  316.925324][  T996] FS:  00007fe708fbc800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  316.925672][  T996] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  316.925939][  T996] CR2: 00007fe70936c200 CR3: 000000000d6a4004 CR4: 0000000000772ef0
[  316.926298][  T996] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  316.926614][  T996] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  316.926989][  T996] PKRU: 55555554
[  316.927206][  T996] Call Trace:
[  316.927360][  T996]  <TASK>
[ 316.927466][ T996] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 316.927685][ T996] ? __warn (kernel/panic.c:748) 
[ 316.927835][ T996] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 316.928043][ T996] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 316.928280][ T996] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 316.928428][ T996] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 316.928618][ T996] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 316.928830][ T996] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 316.929098][ T996] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 316.929320][ T996] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 316.929592][ T996] ? _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) 
[ 316.929810][ T996] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 316.930025][ T996] register_netdevice (net/core/dev.c:11033) 
[ 316.930263][ T996] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 316.930480][ T996] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 316.930720][ T996] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 316.930990][ T996] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 316.931278][ T996] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 316.931548][ T996] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 316.931815][ T996] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 316.932096][ T996] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 316.932347][ T996] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 316.932584][ T996] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 316.932863][ T996] devlink_reload (net/devlink/dev.c:474) 
[ 316.933097][ T996] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 316.933295][ T996] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 316.933586][ T996] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 316.933799][ T996] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 316.934076][ T996] ? __nla_parse (lib/nlattr.c:732) 
[ 316.934311][ T996] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 316.934524][ T996] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 316.934857][ T996] ? cap_capable (security/commoncap.c:131) 
[ 316.935113][ T996] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 316.935360][ T996] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 316.935605][ T996] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 316.935838][ T996] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 316.936138][ T996] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 316.936428][ T996] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 316.936727][ T996] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 316.936965][ T996] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 316.937212][ T996] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 316.937446][ T996] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 316.937692][ T996] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 316.937867][ T996] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 316.938121][ T996] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 316.938371][ T996] genl_rcv (net/netlink/genetlink.c:1220) 
[ 316.938546][ T996] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 316.938789][ T996] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 316.939021][ T996] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 316.939295][ T996] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 316.939539][ T996] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 316.939825][ T996] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 316.940082][ T996] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 316.940325][ T996] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 316.940559][ T996] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 316.940809][ T996] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 316.941061][ T996] ? __sys_recvmsg (net/socket.c:2859) 
[ 316.941301][ T996] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 316.941542][ T996] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 316.941780][ T996] __x64_sys_sendto (net/socket.c:2181) 
[ 316.942013][ T996] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 316.942308][ T996] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 316.942549][ T996] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  316.942836][  T996] RIP: 0033:0x7fe7091c8a4a
[ 316.943096][ T996] 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
[  316.943917][  T996] RSP: 002b:00007ffedc5b9208 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  316.944293][  T996] RAX: ffffffffffffffda RBX: 000000002e3ecb00 RCX: 00007fe7091c8a4a
[  316.944644][  T996] RDX: 0000000000000038 RSI: 000000002e3ecb00 RDI: 0000000000000005
[  316.944986][  T996] RBP: 000000002e3ec910 R08: 00007fe70936c200 R09: 000000000000000c
[  316.945338][  T996] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[  316.945682][  T996] R13: 000000002e3ec910 R14: 0000000000000000 R15: 0000000000000003
| [  318.194405][ T1027] ------------[ cut here ]------------
| [ 318.194759][ T1027] WARNING: CPU: 2 PID: 1027 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:10596) 
| [  318.195269][ T1027] Modules linked in: netdevsim
| [  318.195917][ T1027] Tainted: [W]=WARN
[  318.196105][ T1027] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 318.196405][ T1027] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 318.196901][ T1027] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  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
[  318.197957][ T1027] RSP: 0018:ffffc900020471e8 EFLAGS: 00010246
[  318.198258][ T1027] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  318.198587][ T1027] RDX: 0000000000000000 RSI: ffff88800a7c2c98 RDI: ffff88800d512dc0
[  318.198889][ T1027] RBP: ffff88800b860040 R08: 0000000000000000 R09: fffffbfff723d844
[  318.199232][ T1027] R10: ffffffffb91ec227 R11: ffff88800d512300 R12: 0000000000000000
[  318.199571][ T1027] R13: ffff88800a7c2128 R14: ffff88800a7c2008 R15: ffff88800a7c2000
[  318.199875][ T1027] FS:  00007f7709ee9800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  318.200233][ T1027] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  318.200510][ T1027] CR2: 00007f770a299200 CR3: 000000000bf12003 CR4: 0000000000772ef0
[  318.200815][ T1027] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  318.201172][ T1027] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  318.201502][ T1027] PKRU: 55555554
[  318.201671][ T1027] Call Trace:
[  318.201843][ T1027]  <TASK>
[ 318.201961][ T1027] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 318.202224][ T1027] ? __warn (kernel/panic.c:748) 
[ 318.202421][ T1027] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 318.202645][ T1027] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 318.202874][ T1027] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 318.203063][ T1027] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 318.203286][ T1027] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 318.203540][ T1027] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 318.203767][ T1027] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 318.203999][ T1027] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 318.204297][ T1027] ? _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) 
[ 318.204663][ T1027] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 318.204932][ T1027] register_netdevice (net/core/dev.c:11033) 
[ 318.205178][ T1027] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 318.205423][ T1027] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 318.205662][ T1027] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 318.205939][ T1027] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 318.206285][ T1027] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 318.206642][ T1027] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 318.206932][ T1027] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 318.207262][ T1027] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 318.207568][ T1027] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 318.207788][ T1027] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 318.208102][ T1027] devlink_reload (net/devlink/dev.c:474) 
[ 318.208351][ T1027] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 318.208575][ T1027] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 318.208863][ T1027] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 318.209196][ T1027] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 318.209500][ T1027] ? __nla_parse (lib/nlattr.c:732) 
[ 318.209734][ T1027] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 318.210020][ T1027] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 318.210376][ T1027] ? cap_capable (security/commoncap.c:131) 
[ 318.210605][ T1027] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 318.210833][ T1027] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 318.211085][ T1027] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 318.211315][ T1027] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 318.211601][ T1027] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 318.211876][ T1027] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 318.212170][ T1027] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 318.212412][ T1027] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 318.212646][ T1027] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 318.212864][ T1027] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 318.213109][ T1027] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 318.213279][ T1027] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 318.213618][ T1027] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 318.213992][ T1027] genl_rcv (net/netlink/genetlink.c:1220) 
[ 318.214318][ T1027] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 318.214688][ T1027] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 318.215084][ T1027] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 318.215445][ T1027] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 318.215672][ T1027] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 318.215884][ T1027] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 318.216120][ T1027] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 318.216358][ T1027] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 318.216579][ T1027] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 318.216816][ T1027] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 318.217091][ T1027] ? __sys_recvmsg (net/socket.c:2859) 
[ 318.217332][ T1027] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 318.217559][ T1027] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 318.217783][ T1027] __x64_sys_sendto (net/socket.c:2181) 
[ 318.218000][ T1027] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 318.218316][ T1027] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 318.218546][ T1027] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  318.218819][ T1027] RIP: 0033:0x7f770a0f5a4a
[ 318.219040][ T1027] 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
[  318.219802][ T1027] RSP: 002b:00007fff301a0058 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  318.220141][ T1027] RAX: ffffffffffffffda RBX: 00000000111b5b00 RCX: 00007f770a0f5a4a
[  318.220552][ T1027] RDX: 0000000000000038 RSI: 00000000111b5b00 RDI: 0000000000000005
[  318.220902][ T1027] RBP: 00000000111b5910 R08: 00007f770a299200 R09: 000000000000000c
[  318.221230][ T1027] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[  318.221549][ T1027] R13: 00000000111b5910 R14: 0000000000000000 R15: 0000000000000003
| [  319.431580][ T1045] ------------[ cut here ]------------
| [ 319.431837][ T1045] WARNING: CPU: 0 PID: 1045 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:10596) 
| [  319.432290][ T1045] Modules linked in: netdevsim
| [  319.432855][ T1045] Tainted: [W]=WARN
[  319.433010][ T1045] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 319.433281][ T1045] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 319.433578][ T1045] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  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
[  319.434306][ T1045] RSP: 0018:ffffc900020d71e8 EFLAGS: 00010246
[  319.434563][ T1045] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  319.434872][ T1045] RDX: 0000000000000000 RSI: ffff888008e8ac98 RDI: ffff88800b14adc0
[  319.435272][ T1045] RBP: ffff88800b860040 R08: 0000000000000000 R09: fffffbfff723d844
[  319.435576][ T1045] R10: ffffffffb91ec227 R11: ffff88800b14a300 R12: 0000000000000000
[  319.435872][ T1045] R13: ffff888008e8a128 R14: ffff888008e8a008 R15: ffff888008e8a000
[  319.436194][ T1045] FS:  00007f63df8a2800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  319.436553][ T1045] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  319.436805][ T1045] CR2: 00007f63dfc52200 CR3: 000000000d6a6001 CR4: 0000000000772ef0
[  319.437124][ T1045] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  319.437436][ T1045] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  319.437733][ T1045] PKRU: 55555554
[  319.437884][ T1045] Call Trace:
[  319.438037][ T1045]  <TASK>
[ 319.438168][ T1045] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 319.438381][ T1045] ? __warn (kernel/panic.c:748) 
[ 319.438546][ T1045] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 319.438748][ T1045] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 319.438969][ T1045] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 319.439189][ T1045] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 319.439422][ T1045] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 319.439648][ T1045] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 319.439853][ T1045] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 319.440091][ T1045] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 319.440358][ T1045] ? _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) 
[ 319.440584][ T1045] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 319.440804][ T1045] register_netdevice (net/core/dev.c:11033) 
[ 319.441024][ T1045] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 319.441269][ T1045] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 319.441510][ T1045] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 319.441787][ T1045] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 319.442117][ T1045] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 319.442379][ T1045] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 319.442641][ T1045] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 319.442905][ T1045] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 319.443189][ T1045] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 319.443398][ T1045] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 319.443668][ T1045] devlink_reload (net/devlink/dev.c:474) 
[ 319.443873][ T1045] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 319.444126][ T1045] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 319.444410][ T1045] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 319.444618][ T1045] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 319.444861][ T1045] ? __nla_parse (lib/nlattr.c:732) 
[ 319.445087][ T1045] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 319.445293][ T1045] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 319.445546][ T1045] ? cap_capable (security/commoncap.c:131) 
[ 319.445742][ T1045] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 319.445945][ T1045] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 319.446168][ T1045] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 319.446364][ T1045] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 319.446668][ T1045] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 319.446915][ T1045] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 319.447187][ T1045] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 319.447393][ T1045] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 319.447602][ T1045] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 319.447804][ T1045] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 319.448067][ T1045] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 319.448230][ T1045] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 319.448449][ T1045] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 319.448669][ T1045] genl_rcv (net/netlink/genetlink.c:1220) 
[ 319.448834][ T1045] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 319.449166][ T1045] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 319.449461][ T1045] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 319.449801][ T1045] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 319.450166][ T1045] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 319.450491][ T1045] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 319.450826][ T1045] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 319.451195][ T1045] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 319.451524][ T1045] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 319.451867][ T1045] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 319.452238][ T1045] ? __sys_recvmsg (net/socket.c:2859) 
[ 319.452562][ T1045] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 319.452893][ T1045] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 319.453244][ T1045] __x64_sys_sendto (net/socket.c:2181) 
[ 319.453566][ T1045] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 319.453971][ T1045] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 319.454321][ T1045] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  319.454720][ T1045] RIP: 0033:0x7f63dfaaea4a
[ 319.455043][ T1045] 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
[  319.456189][ T1045] RSP: 002b:00007ffc5c6e7578 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  319.456672][ T1045] RAX: ffffffffffffffda RBX: 00000000097cfb00 RCX: 00007f63dfaaea4a
[  319.457168][ T1045] RDX: 0000000000000038 RSI: 00000000097cfb00 RDI: 0000000000000005
[  319.457632][ T1045] RBP: 00000000097cf910 R08: 00007f63dfc52200 R09: 000000000000000c
[  319.458117][ T1045] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[  319.458573][ T1045] R13: 00000000097cf910 R14: 0000000000000000 R15: 0000000000000003
| [  323.414364][ T1137] ------------[ cut here ]------------
| [ 323.414641][ T1137] WARNING: CPU: 0 PID: 1137 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:10596) 
| [  323.415044][ T1137] Modules linked in: netdevsim
| [  323.415665][ T1137] Tainted: [W]=WARN
[  323.415826][ T1137] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 323.416106][ T1137] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 323.416381][ T1137] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  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
[  323.417149][ T1137] RSP: 0018:ffffc900023e71e8 EFLAGS: 00010246
[  323.417437][ T1137] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  323.417764][ T1137] RDX: 0000000000000000 RSI: ffff88800a512c98 RDI: ffff888009fe0b00
[  323.418113][ T1137] RBP: ffff88800b860040 R08: 0000000000000000 R09: fffffbfff723d844
[  323.418429][ T1137] R10: ffffffffb91ec227 R11: ffff888009fe0040 R12: 0000000000000000
[  323.418746][ T1137] R13: ffff88800a512128 R14: ffff88800a512008 R15: ffff88800a512000
[  323.419148][ T1137] FS:  00007f2fbdaf4800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  323.419510][ T1137] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  323.419773][ T1137] CR2: 00007f2fbdea4200 CR3: 0000000008f7e002 CR4: 0000000000772ef0
[  323.420087][ T1137] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  323.420396][ T1137] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  323.420694][ T1137] PKRU: 55555554
[  323.420845][ T1137] Call Trace:
[  323.420995][ T1137]  <TASK>
[ 323.421116][ T1137] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 323.421335][ T1137] ? __warn (kernel/panic.c:748) 
[ 323.421490][ T1137] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 323.421697][ T1137] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 323.421909][ T1137] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 323.422112][ T1137] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 323.422332][ T1137] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 323.422550][ T1137] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 323.422752][ T1137] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 323.422959][ T1137] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 323.423245][ T1137] ? _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) 
[ 323.423449][ T1137] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 323.423659][ T1137] register_netdevice (net/core/dev.c:11033) 
[ 323.423870][ T1137] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 323.424123][ T1137] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 323.424463][ T1137] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 323.424804][ T1137] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 323.425093][ T1137] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 323.425379][ T1137] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 323.425652][ T1137] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 323.425922][ T1137] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 323.426232][ T1137] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 323.426439][ T1137] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 323.426718][ T1137] devlink_reload (net/devlink/dev.c:474) 
[ 323.426938][ T1137] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 323.427159][ T1137] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 323.427420][ T1137] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 323.427626][ T1137] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 323.427883][ T1137] ? __nla_parse (lib/nlattr.c:732) 
[ 323.428108][ T1137] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 323.428320][ T1137] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 323.428608][ T1137] ? cap_capable (security/commoncap.c:131) 
[ 323.428822][ T1137] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 323.429076][ T1137] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 323.429303][ T1137] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 323.429530][ T1137] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 323.429799][ T1137] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 323.430120][ T1137] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 323.430407][ T1137] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 323.430633][ T1137] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 323.430856][ T1137] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 323.431092][ T1137] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 323.431335][ T1137] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 323.431511][ T1137] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 323.431740][ T1137] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 323.431967][ T1137] genl_rcv (net/netlink/genetlink.c:1220) 
[ 323.432149][ T1137] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 323.432374][ T1137] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 323.432604][ T1137] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 323.432834][ T1137] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 323.433086][ T1137] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 323.433310][ T1137] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 323.433532][ T1137] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 323.433763][ T1137] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 323.434017][ T1137] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 323.434304][ T1137] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 323.434517][ T1137] ? __sys_recvmsg (net/socket.c:2859) 
[ 323.434720][ T1137] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 323.434944][ T1137] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 323.435166][ T1137] __x64_sys_sendto (net/socket.c:2181) 
[ 323.435374][ T1137] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 323.435628][ T1137] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 323.435835][ T1137] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  323.436099][ T1137] RIP: 0033:0x7f2fbdd00a4a
[ 323.436312][ T1137] 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
[  323.437076][ T1137] RSP: 002b:00007ffded9b9ca8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  323.437465][ T1137] RAX: ffffffffffffffda RBX: 000000001a29eb00 RCX: 00007f2fbdd00a4a
[  323.437805][ T1137] RDX: 0000000000000038 RSI: 000000001a29eb00 RDI: 0000000000000005
[  323.438183][ T1137] RBP: 000000001a29e910 R08: 00007f2fbdea4200 R09: 000000000000000c
[  323.438513][ T1137] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[  323.438842][ T1137] R13: 000000001a29e910 R14: 0000000000000000 R15: 0000000000000003
| [  324.453489][ T1151] ------------[ cut here ]------------
| [ 324.453816][ T1151] WARNING: CPU: 0 PID: 1151 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:10596) 
| [  324.454256][ T1151] Modules linked in: netdevsim
| [  324.454809][ T1151] Tainted: [W]=WARN
[  324.454954][ T1151] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 324.455214][ T1151] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 324.455460][ T1151] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  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
[  324.456152][ T1151] RSP: 0018:ffffc900022d71e8 EFLAGS: 00010246
[  324.456444][ T1151] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  324.456732][ T1151] RDX: 0000000000000000 RSI: ffff88800296ac98 RDI: ffff88800a452dc0
[  324.457018][ T1151] RBP: ffff88800b860040 R08: 0000000000000000 R09: fffffbfff723d844
[  324.457353][ T1151] R10: ffffffffb91ec227 R11: ffff88800a452300 R12: 0000000000000000
[  324.457702][ T1151] R13: ffff88800296a128 R14: ffff88800296a008 R15: ffff88800296a000
[  324.458006][ T1151] FS:  00007f8335b31800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  324.458410][ T1151] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  324.458726][ T1151] CR2: 00007f95d6fe75a0 CR3: 000000000d6aa001 CR4: 0000000000772ef0
[  324.459098][ T1151] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  324.459401][ T1151] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  324.459754][ T1151] PKRU: 55555554
[  324.459912][ T1151] Call Trace:
[  324.460082][ T1151]  <TASK>
[ 324.460213][ T1151] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 324.460445][ T1151] ? __warn (kernel/panic.c:748) 
[ 324.460636][ T1151] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 324.460838][ T1151] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 324.461085][ T1151] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 324.461244][ T1151] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 324.461443][ T1151] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 324.461696][ T1151] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 324.461900][ T1151] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 324.462150][ T1151] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 324.462419][ T1151] ? _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) 
[ 324.462625][ T1151] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 324.462826][ T1151] register_netdevice (net/core/dev.c:11033) 
[ 324.463027][ T1151] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 324.463244][ T1151] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 324.463465][ T1151] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 324.463715][ T1151] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 324.463971][ T1151] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 324.464237][ T1151] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 324.464490][ T1151] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 324.464750][ T1151] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 324.465001][ T1151] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 324.465221][ T1151] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 324.465480][ T1151] devlink_reload (net/devlink/dev.c:474) 
[ 324.465677][ T1151] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 324.465869][ T1151] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 324.466133][ T1151] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 324.466348][ T1151] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 324.466611][ T1151] ? __nla_parse (lib/nlattr.c:732) 
[ 324.466816][ T1151] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 324.467031][ T1151] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 324.467315][ T1151] ? cap_capable (security/commoncap.c:131) 
[ 324.467515][ T1151] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 324.467724][ T1151] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 324.467938][ T1151] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 324.468167][ T1151] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 324.468460][ T1151] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 324.468833][ T1151] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 324.469313][ T1151] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 324.469640][ T1151] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 324.469950][ T1151] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 324.470282][ T1151] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 324.470630][ T1151] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 324.470887][ T1151] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 324.471233][ T1151] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 324.471573][ T1151] genl_rcv (net/netlink/genetlink.c:1220) 
[ 324.471852][ T1151] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 324.472254][ T1151] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 324.472602][ T1151] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 324.472960][ T1151] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 324.473347][ T1151] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 324.473623][ T1151] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 324.473961][ T1151] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 324.474382][ T1151] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 324.474753][ T1151] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 324.475112][ T1151] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 324.475452][ T1151] ? __sys_recvmsg (net/socket.c:2859) 
[ 324.475778][ T1151] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 324.476154][ T1151] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 324.476393][ T1151] __x64_sys_sendto (net/socket.c:2181) 
[ 324.476706][ T1151] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 324.477027][ T1151] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 324.477408][ T1151] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  324.477717][ T1151] RIP: 0033:0x7f8335d3da4a
[ 324.477924][ T1151] 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
[  324.478639][ T1151] RSP: 002b:00007ffe561681e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  324.478941][ T1151] RAX: ffffffffffffffda RBX: 000000000cf85b00 RCX: 00007f8335d3da4a
[  324.479276][ T1151] RDX: 0000000000000038 RSI: 000000000cf85b00 RDI: 0000000000000005
[  324.479564][ T1151] RBP: 000000000cf85910 R08: 00007f8335ee1200 R09: 000000000000000c
[  324.479907][ T1151] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[  324.480219][ T1151] R13: 000000000cf85910 R14: 0000000000000000 R15: 0000000000000003
| [  327.349395][ T1216] ------------[ cut here ]------------
| [ 327.349771][ T1216] WARNING: CPU: 1 PID: 1216 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:10596) 
| [  327.350397][ T1216] Modules linked in: netdevsim
| [  327.351266][ T1216] Tainted: [W]=WARN
[  327.351501][ T1216] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 327.351881][ T1216] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 327.352327][ T1216] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  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
[  327.353494][ T1216] RSP: 0018:ffffc900026d71e8 EFLAGS: 00010246
[  327.353906][ T1216] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  327.354372][ T1216] RDX: 0000000000000000 RSI: ffff888009112c98 RDI: ffff88800d6f0b00
[  327.354825][ T1216] RBP: ffff88800b860040 R08: 0000000000000000 R09: fffffbfff723d844
[  327.355293][ T1216] R10: ffffffffb91ec227 R11: ffff88800d6f0040 R12: 0000000000000000
[  327.355772][ T1216] R13: ffff888009112128 R14: ffff888009112008 R15: ffff888009112000
[  327.356269][ T1216] FS:  00007fefd87c8800(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  327.356831][ T1216] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  327.357249][ T1216] CR2: 00007facb4bf62f0 CR3: 000000000890c004 CR4: 0000000000772ef0
[  327.357735][ T1216] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  327.358237][ T1216] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  327.358721][ T1216] PKRU: 55555554
[  327.358970][ T1216] Call Trace:
[  327.359241][ T1216]  <TASK>
[ 327.359411][ T1216] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 327.359737][ T1216] ? __warn (kernel/panic.c:748) 
[ 327.359992][ T1216] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 327.360338][ T1216] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 327.360686][ T1216] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 327.360938][ T1216] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 327.361279][ T1216] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 327.361620][ T1216] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 327.361941][ T1216] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 327.362293][ T1216] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 327.362710][ T1216] ? _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) 
[ 327.363067][ T1216] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 327.363401][ T1216] register_netdevice (net/core/dev.c:11033) 
[ 327.363734][ T1216] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 327.364094][ T1216] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 327.364445][ T1216] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 327.364864][ T1216] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 327.365313][ T1216] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 327.365736][ T1216] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 327.366174][ T1216] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 327.366584][ T1216] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 327.366990][ T1216] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 327.367321][ T1216] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 327.367745][ T1216] devlink_reload (net/devlink/dev.c:474) 
[ 327.368096][ T1216] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 327.368426][ T1216] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 327.368843][ T1216] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 327.369204][ T1216] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 327.369610][ T1216] ? __nla_parse (lib/nlattr.c:732) 
[ 327.369953][ T1216] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 327.370299][ T1216] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 327.370728][ T1216] ? cap_capable (security/commoncap.c:131) 
[ 327.371071][ T1216] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 327.371412][ T1216] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 327.371743][ T1216] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 327.372086][ T1216] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 327.372487][ T1216] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 327.372886][ T1216] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 327.373325][ T1216] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 327.373655][ T1216] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 327.373980][ T1216] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 327.374326][ T1216] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 327.374680][ T1216] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 327.374926][ T1216] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 327.375270][ T1216] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 327.375610][ T1216] genl_rcv (net/netlink/genetlink.c:1220) 
[ 327.375862][ T1216] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 327.376212][ T1216] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 327.376556][ T1216] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 327.376892][ T1216] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 327.377241][ T1216] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 327.377561][ T1216] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 327.377874][ T1216] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 327.378196][ T1216] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 327.378502][ T1216] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 327.378828][ T1216] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 327.379181][ T1216] ? __sys_recvmsg (net/socket.c:2859) 
[ 327.379486][ T1216] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 327.379806][ T1216] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 327.380138][ T1216] __x64_sys_sendto (net/socket.c:2181) 
[ 327.380441][ T1216] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 327.380814][ T1216] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 327.381141][ T1216] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  327.381521][ T1216] RIP: 0033:0x7fefd89d4a4a
[ 327.381833][ T1216] 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
[  327.382877][ T1216] RSP: 002b:00007ffdca378d98 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  327.383356][ T1216] RAX: ffffffffffffffda RBX: 000000003c652b00 RCX: 00007fefd89d4a4a
[  327.383802][ T1216] RDX: 0000000000000038 RSI: 000000003c652b00 RDI: 0000000000000005
[  327.384261][ T1216] RBP: 000000003c652910 R08: 00007fefd8b78200 R09: 000000000000000c
[  327.384705][ T1216] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[  327.385165][ T1216] R13: 000000003c652910 R14: 0000000000000000 R15: 0000000000000003
| [  328.921750][ T1246] ------------[ cut here ]------------
| [ 328.922016][ T1246] WARNING: CPU: 3 PID: 1246 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:10596) 
| [  328.922464][ T1246] Modules linked in: netdevsim
| [  328.923069][ T1246] Tainted: [W]=WARN
[  328.923232][ T1246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 328.923492][ T1246] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 328.923762][ T1246] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  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
[  328.924506][ T1246] RSP: 0018:ffffc900027b71e8 EFLAGS: 00010246
[  328.924775][ T1246] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  328.925102][ T1246] RDX: 0000000000000000 RSI: ffff8880050c2c98 RDI: ffff88800a51adc0
[  328.925417][ T1246] RBP: ffff88800b860040 R08: 0000000000000000 R09: fffffbfff723d844
[  328.925732][ T1246] R10: ffffffffb91ec227 R11: ffff88800a51a300 R12: 0000000000000000
[  328.926087][ T1246] R13: ffff8880050c2128 R14: ffff8880050c2008 R15: ffff8880050c2000
[  328.926400][ T1246] FS:  00007f06e734c800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  328.926768][ T1246] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  328.927032][ T1246] CR2: 00007f06e76fc200 CR3: 0000000008988004 CR4: 0000000000772ef0
[  328.927362][ T1246] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  328.927675][ T1246] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  328.927987][ T1246] PKRU: 55555554
[  328.928187][ T1246] Call Trace:
[  328.928350][ T1246]  <TASK>
[ 328.928459][ T1246] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 328.928671][ T1246] ? __warn (kernel/panic.c:748) 
[ 328.928834][ T1246] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 328.929084][ T1246] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 328.929313][ T1246] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 328.929480][ T1246] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 328.929695][ T1246] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 328.930016][ T1246] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 328.930377][ T1246] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 328.930715][ T1246] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 328.931148][ T1246] ? _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) 
[ 328.931480][ T1246] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 328.931817][ T1246] register_netdevice (net/core/dev.c:11033) 
[ 328.932178][ T1246] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 328.932566][ T1246] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 328.932965][ T1246] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 328.933455][ T1246] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 328.933932][ T1246] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 328.934435][ T1246] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 328.934906][ T1246] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 328.935405][ T1246] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 328.935868][ T1246] ? nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1651) netdevsim 
[ 328.936364][ T1246] devlink_reload (net/devlink/dev.c:474) 
[ 328.936745][ T1246] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 328.937136][ T1246] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 328.937613][ T1246] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 328.937978][ T1246] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 328.938456][ T1246] ? __nla_parse (lib/nlattr.c:732) 
[ 328.938834][ T1246] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 328.939215][ T1246] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 328.939663][ T1246] ? cap_capable (security/commoncap.c:131) 
[ 328.940025][ T1246] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 328.940427][ T1246] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 328.940711][ T1246] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 328.940925][ T1246] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 328.941217][ T1246] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 328.941477][ T1246] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 328.941750][ T1246] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 328.941971][ T1246] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 328.942204][ T1246] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 328.942420][ T1246] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 328.942649][ T1246] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 328.942808][ T1246] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 328.943037][ T1246] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 328.943270][ T1246] genl_rcv (net/netlink/genetlink.c:1220) 
[ 328.943428][ T1246] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 328.943642][ T1246] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 328.943882][ T1246] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 328.944130][ T1246] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 328.944345][ T1246] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 328.944568][ T1246] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 328.944779][ T1246] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 328.945009][ T1246] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 328.945236][ T1246] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 328.945456][ T1246] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 328.945673][ T1246] ? __sys_recvmsg (net/socket.c:2859) 
[ 328.945881][ T1246] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 328.946119][ T1246] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 328.946339][ T1246] __x64_sys_sendto (net/socket.c:2181) 
[ 328.946549][ T1246] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 328.946810][ T1246] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 328.947035][ T1246] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  328.947313][ T1246] RIP: 0033:0x7f06e7558a4a
[ 328.947529][ T1246] 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
[  328.948273][ T1246] RSP: 002b:00007fff72077cd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  328.948587][ T1246] RAX: ffffffffffffffda RBX: 000000000300eb00 RCX: 00007f06e7558a4a
[  328.948897][ T1246] RDX: 0000000000000038 RSI: 000000000300eb00 RDI: 0000000000000005
[  328.949249][ T1246] RBP: 000000000300e910 R08: 00007f06e76fc200 R09: 000000000000000c
[  328.949559][ T1246] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[  328.949867][ T1246] R13: 000000000300e910 R14: 0000000000000000 R15: 0000000000000003
| [  329.283681][   T11] ------------[ cut here ]------------
| [ 329.284034][ T11] WARNING: CPU: 0 PID: 11 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
| [  329.284441][   T11] Modules linked in: netdevsim
| [  329.285034][   T11] Tainted: [W]=WARN
[  329.285193][   T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  329.285454][   T11] Workqueue: netns cleanup_net
[ 329.285681][ T11] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 329.285923][ T11] Code: 00 e8 b3 48 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 b8 56 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:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   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 b8 56 78 00       	call   0x7856d9
  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
[  329.286594][   T11] RSP: 0018:ffffc900000b7620 EFLAGS: 00010246
[  329.286838][   T11] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  329.287132][   T11] RDX: 0000000000000000 RSI: ffff88800a7c2c98 RDI: ffff888001a82e10
[  329.287419][   T11] RBP: ffffffffbb324440 R08: 0000000000000000 R09: fffffbfff723d844
[  329.287701][   T11] R10: ffffffffb91ec227 R11: ffff888001a82300 R12: 0000000000000000
[  329.287987][   T11] R13: ffff88800a7c2128 R14: ffff88800a7c2008 R15: ffff88800a7c2000
[  329.288452][   T11] FS:  0000000000000000(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  329.288784][   T11] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  329.289035][   T11] CR2: 00007f7f1fd9d258 CR3: 0000000015128003 CR4: 0000000000772ef0
[  329.289335][   T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  329.289621][   T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  329.289903][   T11] PKRU: 55555554
[  329.290060][   T11] Call Trace:
[  329.290205][   T11]  <TASK>
[ 329.290305][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 329.290499][ T11] ? __warn (kernel/panic.c:748) 
[ 329.290667][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 329.290866][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 329.291081][ T11] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 329.291229][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 329.291423][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 329.291631][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 329.291834][ T11] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 329.292091][ T11] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 329.292296][ T11] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 329.292490][ T11] register_netdevice (net/core/dev.c:11033) 
[ 329.292686][ T11] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 329.292890][ T11] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 329.293134][ T11] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 329.293415][ T11] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 329.293687][ T11] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 329.293999][ T11] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 329.294272][ T11] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 329.294520][ T11] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 329.294781][ T11] devlink_reload (net/devlink/dev.c:474) 
[ 329.294986][ T11] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 329.295194][ T11] ? devlinks_xa_find_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/devlink/core.c:343) 
[ 329.295402][ T11] devlink_pernet_pre_exit (net/devlink/core.c:288 net/devlink/devl_internal.h:114 net/devlink/core.c:513) 
[ 329.295598][ T11] ? __pfx_devlink_pernet_pre_exit (net/devlink/core.c:496) 
[ 329.295858][ T11] cleanup_net (net/core/net_namespace.c:162 net/core/net_namespace.c:632) 
[ 329.296076][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 329.296276][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:594) 
[ 329.296476][ T11] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 329.296683][ T11] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 329.296879][ T11] ? process_one_work (kernel/workqueue.c:3214) 
[ 329.297101][ T11] process_one_work (kernel/workqueue.c:3238) 
[ 329.297307][ T11] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 329.297502][ T11] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 329.297711][ T11] ? assign_work (kernel/workqueue.c:1200) 
[ 329.297920][ T11] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 329.298142][ T11] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 329.298344][ T11] kthread (kernel/kthread.c:464) 
[ 329.298491][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 329.298695][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 329.298899][ T11] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 329.299120][ T11] ? __pfx_kthread (kernel/kthread.c:413) 


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