======================================
| 0
| xx__-> [   10.008236][  T229] ------------[ cut here ]------------
| [ 10.008569][ T229] WARNING: CPU: 1 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   10.009161][  T229] Modules linked in: netdevsim
[   10.009778][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.010094][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.010370][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   10.011133][  T229] RSP: 0018:ffffc90000b37520 EFLAGS: 00010246
[   10.011421][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.011746][  T229] RDX: 0000000000000000 RSI: ffff88800a292c98 RDI: ffff8880051c0b78
[   10.012057][  T229] RBP: ffffffffb2b23440 R08: 0000000000000000 R09: fffffbfff613d83c
[   10.012413][  T229] R10: ffffffffb09ec1e7 R11: ffff8880051c0040 R12: 0000000000000000
[   10.012735][  T229] R13: ffff88800a292128 R14: ffff88800a292008 R15: ffff88800a292000
[   10.013048][  T229] FS:  00007fc229e0a740(0000) GS:ffff88802f680000(0000) knlGS:0000000000000000
[   10.013447][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.013730][  T229] CR2: 000055e6974c2ac8 CR3: 000000000944c005 CR4: 0000000000772ef0
[   10.014042][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.014369][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.014683][  T229] PKRU: 55555554
[   10.014848][  T229] Call Trace:
[   10.015016][  T229]  <TASK>
[ 10.015146][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.015374][ T229] ? __warn (kernel/panic.c:748) 
[ 10.015544][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.015761][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.015982][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.016182][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.016405][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.016639][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.016868][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.017161][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 10.017387][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.017610][ T229] register_netdevice (net/core/dev.c:11003) 
[ 10.017835][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.018054][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.018305][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.018577][ T229] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.018743][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.019023][ T229] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.019316][ T229] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.019599][ T229] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.019827][ T229] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.020132][ T229] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.020355][ T229] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 10.020518][ T229] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.020740][ T229] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.020967][ T229] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.021205][ T229] driver_probe_device (drivers/base/dd.c:830) 
[ 10.021437][ T229] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.021651][ T229] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.021913][ T229] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.022145][ T229] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.022362][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.022571][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.022788][ T229] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.023001][ T229] __device_attach (drivers/base/dd.c:1030) 
[ 10.023248][ T229] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.023460][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.023672][ T229] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 10.023900][ T229] bus_probe_device (drivers/base/bus.c:537) 
[ 10.024156][ T229] device_add (drivers/base/core.c:3672) 
[ 10.024378][ T229] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.024589][ T229] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.024827][ T229] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.025129][ T229] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.025417][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.025627][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.025840][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.026055][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.026291][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.026457][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.026671][ T229] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.026901][ T229] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.027137][ T229] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.027365][ T229] ksys_write (fs/read_write.c:731) 
[ 10.027525][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.027730][ T229] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.027956][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.028216][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.028479][  T229] RIP: 0033:0x7fc229f4bb77
[ 10.028699][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   10.029456][  T229] RSP: 002b:00007ffe50947a58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.029769][  T229] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fc229f4bb77
[   10.030109][  T229] RDX: 0000000000000007 RSI: 000055e6974c1ac0 RDI: 0000000000000001
[   10.030428][  T229] RBP: 000055e6974c1ac0 R08: 0000000000000003 R09: 0000000000000077
[   10.030755][  T229] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000007
[   10.031098][  T229] R13: 00007fc22a007760 R14: 0000000000000007 R15: 00007fc22a0029c0
| [   10.254912][  T255] ------------[ cut here ]------------
| [ 10.255378][ T255] WARNING: CPU: 2 PID: 255 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   10.255889][  T255] Modules linked in: netdevsim
| [   10.256504][  T255] Tainted: [W]=WARN
[   10.256704][  T255] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.256969][ T255] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.257252][ T255] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   10.257959][  T255] RSP: 0018:ffffc900004e71e8 EFLAGS: 00010246
[   10.258248][  T255] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.258561][  T255] RDX: 0000000000000000 RSI: ffff8880023d2c98 RDI: ffff8880051c5080
[   10.258870][  T255] RBP: ffff88800c2a8040 R08: 0000000000000000 R09: fffffbfff613d83c
[   10.259208][  T255] R10: ffffffffb09ec1e7 R11: ffff8880051c45c0 R12: 0000000000000000
[   10.259526][  T255] R13: ffff8880023d2128 R14: ffff8880023d2008 R15: ffff8880023d2000
[   10.259834][  T255] FS:  00007f59fa72e800(0000) GS:ffff88802f700000(0000) knlGS:0000000000000000
[   10.260258][  T255] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.260524][  T255] CR2: 00007f9669ac76c3 CR3: 00000000050be005 CR4: 0000000000772ef0
[   10.260844][  T255] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.261166][  T255] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.261474][  T255] PKRU: 55555554
[   10.261640][  T255] Call Trace:
[   10.261807][  T255]  <TASK>
[ 10.261924][ T255] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.262153][ T255] ? __warn (kernel/panic.c:748) 
[ 10.262331][ T255] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.262548][ T255] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.262771][ T255] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.262938][ T255] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.263187][ T255] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.263422][ T255] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.263638][ T255] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 10.263857][ T255] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.264146][ T255] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 10.264368][ T255] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.264587][ T255] register_netdevice (net/core/dev.c:11003) 
[ 10.264806][ T255] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.265030][ T255] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.265277][ T255] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.265557][ T255] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.265839][ T255] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 10.266127][ T255] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 10.266402][ T255] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 10.266671][ T255] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 10.266960][ T255] devlink_reload (net/devlink/dev.c:474) 
[ 10.267207][ T255] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 10.267426][ T255] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 10.267645][ T255] ? cap_capable (security/commoncap.c:131) 
[ 10.267859][ T255] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 10.268036][ T255] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 10.268280][ T255] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.268554][ T255] ? __nla_parse (lib/nlattr.c:732) 
[ 10.268777][ T255] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 10.268998][ T255] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 10.269287][ T255] ? cap_capable (security/commoncap.c:131) 
[ 10.269503][ T255] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 10.269724][ T255] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 10.269943][ T255] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 10.270176][ T255] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 10.270437][ T255] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.270696][ T255] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 10.270973][ T255] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 10.271198][ T255] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 10.271412][ T255] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 10.271627][ T255] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 10.271864][ T255] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 10.272028][ T255] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 10.272258][ T255] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 10.272477][ T255] genl_rcv (net/netlink/genetlink.c:1220) 
[ 10.272643][ T255] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 10.272864][ T255] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 10.273092][ T255] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 10.273331][ T255] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 10.273549][ T255] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 10.273765][ T255] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 10.273981][ T255] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 10.274219][ T255] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 10.274438][ T255] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 10.274655][ T255] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.274866][ T255] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 10.275121][ T255] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.275346][ T255] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 10.275614][ T255] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 10.275879][ T255] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 10.276113][ T255] __x64_sys_sendto (net/socket.c:2181) 
[ 10.276326][ T255] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.276593][ T255] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.276809][ T255] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.277083][  T255] RIP: 0033:0x7f59fa93aa4a
[ 10.277304][ T255] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
All code
========
   0:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   4:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   b:	eb b8                	jmp    0xffffffffffffffc5
   d:	0f 1f 00             	nopl   (%rax)
  10:	f3 0f 1e fa          	endbr64
  14:	41 89 ca             	mov    %ecx,%r10d
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 15                	jne    0x38
  23:	b8 2c 00 00 00       	mov    $0x2c,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 7e                	ja     0xb0
  32:	c3                   	ret
  33:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  38:	41 54                	push   %r12
  3a:	48 83 ec 30          	sub    $0x30,%rsp
  3e:	44                   	rex.R
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 7e                	ja     0x86
   8:	c3                   	ret
   9:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   e:	41 54                	push   %r12
  10:	48 83 ec 30          	sub    $0x30,%rsp
  14:	44                   	rex.R
  15:	89                   	.byte 0x89
[   10.278008][  T255] RSP: 002b:00007ffe577da4b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   10.278342][  T255] RAX: ffffffffffffffda RBX: 000000002396fb00 RCX: 00007f59fa93aa4a
[   10.278652][  T255] RDX: 0000000000000040 RSI: 000000002396fb00 RDI: 0000000000000005
[   10.278960][  T255] RBP: 000000002396f910 R08: 00007f59faade200 R09: 000000000000000c
[   10.279294][  T255] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   10.279608][  T255] R13: 000000002396f910 R14: 0000000000000000 R15: 0000000000000001
| [   11.267758][  T284] ------------[ cut here ]------------
| [ 11.268108][ T284] WARNING: CPU: 2 PID: 284 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   11.268547][  T284] Modules linked in: netdevsim
| [   11.269190][  T284] Tainted: [W]=WARN
[   11.269360][  T284] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.269637][ T284] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.269920][ T284] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   11.270659][  T284] RSP: 0018:ffffc900006271e8 EFLAGS: 00010246
[   11.270936][  T284] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.271332][  T284] RDX: 0000000000000000 RSI: ffff88800bc0ac98 RDI: ffff888005c3adc0
[   11.271639][  T284] RBP: ffff88800c2a8040 R08: 0000000000000000 R09: fffffbfff613d83c
[   11.271964][  T284] R10: ffffffffb09ec1e7 R11: ffff888005c3a300 R12: 0000000000000000
[   11.272290][  T284] R13: ffff88800bc0a128 R14: ffff88800bc0a008 R15: ffff88800bc0a000
[   11.272617][  T284] FS:  00007f3b1a278800(0000) GS:ffff88802f700000(0000) knlGS:0000000000000000
[   11.272985][  T284] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.273286][  T284] CR2: 00007f3b1a628200 CR3: 000000000bd08003 CR4: 0000000000772ef0
[   11.273600][  T284] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.273913][  T284] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.274251][  T284] PKRU: 55555554
[   11.274419][  T284] Call Trace:
[   11.274586][  T284]  <TASK>
[ 11.274709][ T284] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.274931][ T284] ? __warn (kernel/panic.c:748) 
[ 11.275116][ T284] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.275334][ T284] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.275555][ T284] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.275727][ T284] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.275944][ T284] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.276192][ T284] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.276409][ T284] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 11.276630][ T284] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 11.276905][ T284] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 11.277138][ T284] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.277360][ T284] register_netdevice (net/core/dev.c:11003) 
[ 11.277582][ T284] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 11.277805][ T284] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.278041][ T284] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.278329][ T284] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.278612][ T284] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 11.278890][ T284] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 11.279180][ T284] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 11.279452][ T284] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 11.279723][ T284] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 11.279938][ T284] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 11.280233][ T284] devlink_reload (net/devlink/dev.c:474) 
[ 11.280457][ T284] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 11.280679][ T284] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 11.280956][ T284] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 11.281199][ T284] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.281476][ T284] ? __nla_parse (lib/nlattr.c:732) 
[ 11.281709][ T284] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 11.281946][ T284] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 11.282249][ T284] ? cap_capable (security/commoncap.c:131) 
[ 11.282480][ T284] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 11.282704][ T284] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 11.282931][ T284] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 11.283172][ T284] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 11.283445][ T284] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.283709][ T284] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 11.283994][ T284] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 11.284228][ T284] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 11.284450][ T284] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 11.284673][ T284] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 11.284902][ T284] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 11.285080][ T284] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 11.285298][ T284] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 11.285528][ T284] genl_rcv (net/netlink/genetlink.c:1220) 
[ 11.285699][ T284] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 11.285929][ T284] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 11.286165][ T284] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 11.286390][ T284] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 11.286618][ T284] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 11.286842][ T284] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 11.287085][ T284] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 11.287312][ T284] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 11.287530][ T284] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 11.287751][ T284] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 11.287975][ T284] ? __sys_recvmsg (net/socket.c:2859) 
[ 11.288207][ T284] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 11.288432][ T284] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 11.288663][ T284] __x64_sys_sendto (net/socket.c:2181) 
[ 11.288895][ T284] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 11.289181][ T284] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.289414][ T284] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.289671][  T284] RIP: 0033:0x7f3b1a484a4a
[ 11.289903][ T284] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
All code
========
   0:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   4:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   b:	eb b8                	jmp    0xffffffffffffffc5
   d:	0f 1f 00             	nopl   (%rax)
  10:	f3 0f 1e fa          	endbr64
  14:	41 89 ca             	mov    %ecx,%r10d
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 15                	jne    0x38
  23:	b8 2c 00 00 00       	mov    $0x2c,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 7e                	ja     0xb0
  32:	c3                   	ret
  33:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  38:	41 54                	push   %r12
  3a:	48 83 ec 30          	sub    $0x30,%rsp
  3e:	44                   	rex.R
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 7e                	ja     0x86
   8:	c3                   	ret
   9:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   e:	41 54                	push   %r12
  10:	48 83 ec 30          	sub    $0x30,%rsp
  14:	44                   	rex.R
  15:	89                   	.byte 0x89
[   11.290636][  T284] RSP: 002b:00007fff5bbde9d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   11.290954][  T284] RAX: ffffffffffffffda RBX: 000000000242bb00 RCX: 00007f3b1a484a4a
[   11.291272][  T284] RDX: 0000000000000038 RSI: 000000000242bb00 RDI: 0000000000000005
[   11.291585][  T284] RBP: 000000000242b910 R08: 00007f3b1a628200 R09: 000000000000000c
[   11.291904][  T284] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   11.292233][  T284] R13: 000000000242b910 R14: 0000000000000000 R15: 0000000000000003
| [   11.883355][  T294] ------------[ cut here ]------------
| [ 11.883666][ T294] WARNING: CPU: 2 PID: 294 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   11.884570][  T294] Modules linked in: netdevsim
| [   11.885189][  T294] Tainted: [W]=WARN
[   11.885357][  T294] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.885623][ T294] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.885895][ T294] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   11.886628][  T294] RSP: 0018:ffffc900006671e8 EFLAGS: 00010246
[   11.886898][  T294] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.887222][  T294] RDX: 0000000000000000 RSI: ffff8880024cac98 RDI: ffff888009678b00
[   11.887534][  T294] RBP: ffff88800c2a8040 R08: 0000000000000000 R09: fffffbfff613d83c
[   11.887858][  T294] R10: ffffffffb09ec1e7 R11: ffff888009678040 R12: 0000000000000000
[   11.888179][  T294] R13: ffff8880024ca128 R14: ffff8880024ca008 R15: ffff8880024ca000
[   11.888493][  T294] FS:  00007fc023906800(0000) GS:ffff88802f700000(0000) knlGS:0000000000000000
[   11.888852][  T294] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.889135][  T294] CR2: 00007f15d376f000 CR3: 0000000004fea006 CR4: 0000000000772ef0
[   11.889458][  T294] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.889765][  T294] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.890086][  T294] PKRU: 55555554
[   11.890252][  T294] Call Trace:
[   11.890421][  T294]  <TASK>
[ 11.890538][ T294] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.890806][ T294] ? __warn (kernel/panic.c:748) 
[ 11.890977][ T294] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.891210][ T294] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.891436][ T294] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.891603][ T294] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.891816][ T294] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.892043][ T294] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.892276][ T294] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 11.892498][ T294] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 11.892767][ T294] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 11.892985][ T294] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.893221][ T294] register_netdevice (net/core/dev.c:11003) 
[ 11.893442][ T294] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 11.893673][ T294] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.893903][ T294] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.894185][ T294] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.894464][ T294] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 11.894742][ T294] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 11.895012][ T294] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 11.895298][ T294] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 11.895561][ T294] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 11.895777][ T294] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 11.896054][ T294] devlink_reload (net/devlink/dev.c:474) 
[ 11.896285][ T294] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 11.896502][ T294] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 11.896781][ T294] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 11.897004][ T294] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.897282][ T294] ? __nla_parse (lib/nlattr.c:732) 
[ 11.897508][ T294] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 11.897731][ T294] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 11.898008][ T294] ? cap_capable (security/commoncap.c:131) 
[ 11.898237][ T294] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 11.898466][ T294] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 11.898687][ T294] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 11.898922][ T294] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 11.899202][ T294] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.899463][ T294] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 11.899740][ T294] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 11.899968][ T294] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 11.900193][ T294] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 11.900413][ T294] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 11.900644][ T294] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 11.900815][ T294] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 11.901038][ T294] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 11.901275][ T294] genl_rcv (net/netlink/genetlink.c:1220) 
[ 11.901448][ T294] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 11.901679][ T294] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 11.901895][ T294] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 11.902136][ T294] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 11.902363][ T294] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 11.902581][ T294] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 11.902805][ T294] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 11.903039][ T294] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 11.903286][ T294] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 11.903520][ T294] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 11.903743][ T294] ? __sys_recvmsg (net/socket.c:2859) 
[ 11.903966][ T294] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 11.904201][ T294] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 11.904427][ T294] __x64_sys_sendto (net/socket.c:2181) 
[ 11.904646][ T294] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 11.904914][ T294] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.905147][ T294] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.905416][  T294] RIP: 0033:0x7fc023b12a4a
[ 11.905639][ T294] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
All code
========
   0:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   4:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   b:	eb b8                	jmp    0xffffffffffffffc5
   d:	0f 1f 00             	nopl   (%rax)
  10:	f3 0f 1e fa          	endbr64
  14:	41 89 ca             	mov    %ecx,%r10d
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 15                	jne    0x38
  23:	b8 2c 00 00 00       	mov    $0x2c,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 7e                	ja     0xb0
  32:	c3                   	ret
  33:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  38:	41 54                	push   %r12
  3a:	48 83 ec 30          	sub    $0x30,%rsp
  3e:	44                   	rex.R
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 7e                	ja     0x86
   8:	c3                   	ret
   9:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   e:	41 54                	push   %r12
  10:	48 83 ec 30          	sub    $0x30,%rsp
  14:	44                   	rex.R
  15:	89                   	.byte 0x89
[   11.906366][  T294] RSP: 002b:00007ffe66388bb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   11.906697][  T294] RAX: ffffffffffffffda RBX: 000000001ecebb00 RCX: 00007fc023b12a4a
[   11.907010][  T294] RDX: 0000000000000038 RSI: 000000001ecebb00 RDI: 0000000000000005
[   11.907337][  T294] RBP: 000000001eceb910 R08: 00007fc023cb6200 R09: 000000000000000c
[   11.907652][  T294] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   11.907971][  T294] R13: 000000001eceb910 R14: 0000000000000000 R15: 0000000000000003
| [   13.478736][  T339] ------------[ cut here ]------------
| [ 13.479012][ T339] WARNING: CPU: 3 PID: 339 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   13.479494][  T339] Modules linked in: netdevsim
| [   13.480149][  T339] Tainted: [W]=WARN
[   13.480324][  T339] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 13.480609][ T339] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 13.480900][ T339] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   13.481691][  T339] RSP: 0018:ffffc900009371e8 EFLAGS: 00010246
[   13.481983][  T339] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   13.482307][  T339] RDX: 0000000000000000 RSI: ffff888009a12c98 RDI: ffff8880059b0b00
[   13.482624][  T339] RBP: ffff88800c2a8040 R08: 0000000000000000 R09: fffffbfff613d83c
[   13.482944][  T339] R10: ffffffffb09ec1e7 R11: ffff8880059b0040 R12: 0000000000000000
[   13.483281][  T339] R13: ffff888009a12128 R14: ffff888009a12008 R15: ffff888009a12000
[   13.483591][  T339] FS:  00007fba1e42e800(0000) GS:ffff88802f780000(0000) knlGS:0000000000000000
[   13.483958][  T339] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.484235][  T339] CR2: 00007fba1e7de200 CR3: 000000000bdfc005 CR4: 0000000000772ef0
[   13.484558][  T339] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   13.484871][  T339] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   13.485202][  T339] PKRU: 55555554
[   13.485374][  T339] Call Trace:
[   13.485532][  T339]  <TASK>
[ 13.485641][ T339] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 13.485870][ T339] ? __warn (kernel/panic.c:748) 
[ 13.486036][ T339] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 13.486262][ T339] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 13.486493][ T339] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 13.486659][ T339] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 13.486878][ T339] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 13.487131][ T339] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 13.487348][ T339] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 13.487567][ T339] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 13.487831][ T339] ? _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) 
[ 13.488046][ T339] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 13.488285][ T339] register_netdevice (net/core/dev.c:11003) 
[ 13.488515][ T339] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 13.488741][ T339] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 13.488970][ T339] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 13.489253][ T339] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 13.489531][ T339] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 13.489809][ T339] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 13.490090][ T339] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 13.490369][ T339] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 13.490634][ T339] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 13.490841][ T339] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 13.491138][ T339] devlink_reload (net/devlink/dev.c:474) 
[ 13.491359][ T339] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 13.491582][ T339] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 13.491853][ T339] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 13.492080][ T339] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 13.492343][ T339] ? __nla_parse (lib/nlattr.c:732) 
[ 13.492561][ T339] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 13.492775][ T339] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 13.493047][ T339] ? cap_capable (security/commoncap.c:131) 
[ 13.493284][ T339] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 13.493504][ T339] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 13.493717][ T339] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 13.493941][ T339] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 13.494211][ T339] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 13.494477][ T339] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 13.494757][ T339] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 13.494969][ T339] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 13.495193][ T339] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 13.495405][ T339] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 13.495630][ T339] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 13.495794][ T339] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 13.496008][ T339] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 13.496246][ T339] genl_rcv (net/netlink/genetlink.c:1220) 
[ 13.496403][ T339] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 13.496614][ T339] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 13.496821][ T339] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 13.497038][ T339] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 13.497259][ T339] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 13.497465][ T339] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 13.497678][ T339] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 13.497915][ T339] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 13.498148][ T339] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 13.498375][ T339] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 13.498604][ T339] ? __sys_recvmsg (net/socket.c:2859) 
[ 13.498829][ T339] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 13.499056][ T339] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 13.499307][ T339] __x64_sys_sendto (net/socket.c:2181) 
[ 13.499536][ T339] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 13.499809][ T339] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 13.500020][ T339] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   13.500298][  T339] RIP: 0033:0x7fba1e63aa4a
[ 13.500516][ T339] 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
[   13.501248][  T339] RSP: 002b:00007ffd6dde4fa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   13.501563][  T339] RAX: ffffffffffffffda RBX: 000000000f7acb00 RCX: 00007fba1e63aa4a
[   13.501868][  T339] RDX: 0000000000000038 RSI: 000000000f7acb00 RDI: 0000000000000005
[   13.502185][  T339] RBP: 000000000f7ac910 R08: 00007fba1e7de200 R09: 000000000000000c
[   13.502497][  T339] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   13.502802][  T339] R13: 000000000f7ac910 R14: 0000000000000000 R15: 0000000000000003
| [   14.183564][  T350] ------------[ cut here ]------------
| [ 14.183828][ T350] WARNING: CPU: 0 PID: 350 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   14.184272][  T350] Modules linked in: netdevsim
| [   14.184849][  T350] Tainted: [W]=WARN
[   14.185007][  T350] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 14.185295][ T350] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.185551][ T350] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   14.186294][  T350] RSP: 0018:ffffc900009a71e8 EFLAGS: 00010246
[   14.186560][  T350] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   14.186871][  T350] RDX: 0000000000000000 RSI: ffff88800a292c98 RDI: ffff88800620d080
[   14.187185][  T350] RBP: ffff88800c2a8040 R08: 0000000000000000 R09: fffffbfff613d83c
[   14.187486][  T350] R10: ffffffffb09ec1e7 R11: ffff88800620c5c0 R12: 0000000000000000
[   14.187784][  T350] R13: ffff88800a292128 R14: ffff88800a292008 R15: ffff88800a292000
[   14.188100][  T350] FS:  00007f4f26608800(0000) GS:ffff88802f600000(0000) knlGS:0000000000000000
[   14.188453][  T350] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   14.188707][  T350] CR2: 00007f9669a1e870 CR3: 000000000c0f0001 CR4: 0000000000772ef0
[   14.189021][  T350] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   14.189349][  T350] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   14.189651][  T350] PKRU: 55555554
[   14.189815][  T350] Call Trace:
[   14.189973][  T350]  <TASK>
[ 14.190086][ T350] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.190288][ T350] ? __warn (kernel/panic.c:748) 
[ 14.190445][ T350] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.190649][ T350] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 14.190869][ T350] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 14.191023][ T350] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 14.191238][ T350] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 14.191465][ T350] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 14.191674][ T350] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 14.191901][ T350] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 14.192175][ T350] ? _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) 
[ 14.192400][ T350] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 14.192611][ T350] register_netdevice (net/core/dev.c:11003) 
[ 14.192828][ T350] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 14.193042][ T350] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 14.193297][ T350] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 14.193570][ T350] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 14.193856][ T350] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 14.194141][ T350] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 14.194421][ T350] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 14.194698][ T350] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 14.194970][ T350] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 14.195187][ T350] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 14.195454][ T350] devlink_reload (net/devlink/dev.c:474) 
[ 14.195673][ T350] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 14.195893][ T350] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 14.196172][ T350] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 14.196392][ T350] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 14.196644][ T350] ? __nla_parse (lib/nlattr.c:732) 
[ 14.196869][ T350] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 14.197088][ T350] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 14.197351][ T350] ? cap_capable (security/commoncap.c:131) 
[ 14.197553][ T350] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 14.197769][ T350] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 14.197982][ T350] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 14.198195][ T350] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 14.198449][ T350] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 14.198708][ T350] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 14.198974][ T350] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 14.199185][ T350] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 14.199387][ T350] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 14.199591][ T350] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 14.199820][ T350] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 14.199988][ T350] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 14.200201][ T350] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 14.200415][ T350] genl_rcv (net/netlink/genetlink.c:1220) 
[ 14.200571][ T350] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 14.200792][ T350] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 14.201008][ T350] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 14.201231][ T350] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 14.201439][ T350] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 14.201651][ T350] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 14.201866][ T350] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 14.202089][ T350] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 14.202297][ T350] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 14.202509][ T350] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 14.202717][ T350] ? __sys_recvmsg (net/socket.c:2859) 
[ 14.202920][ T350] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 14.203163][ T350] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 14.203378][ T350] __x64_sys_sendto (net/socket.c:2181) 
[ 14.203579][ T350] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 14.203848][ T350] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 14.204092][ T350] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   14.204347][  T350] RIP: 0033:0x7f4f26814a4a
[ 14.204563][ T350] 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
[   14.205282][  T350] RSP: 002b:00007fff72aac838 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   14.205596][  T350] RAX: ffffffffffffffda RBX: 000000002b5acb00 RCX: 00007f4f26814a4a
[   14.205912][  T350] RDX: 0000000000000038 RSI: 000000002b5acb00 RDI: 0000000000000005
[   14.206310][  T350] RBP: 000000002b5ac910 R08: 00007f4f269b8200 R09: 000000000000000c
[   14.206616][  T350] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   14.206918][  T350] R13: 000000002b5ac910 R14: 0000000000000000 R15: 0000000000000003
| [   16.126020][  T412] ------------[ cut here ]------------
| [ 16.126305][ T412] WARNING: CPU: 3 PID: 412 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   16.126700][  T412] Modules linked in: netdevsim
| [   16.127351][  T412] Tainted: [W]=WARN
[   16.127505][  T412] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 16.127758][ T412] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 16.128011][ T412] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   16.128702][  T412] RSP: 0018:ffffc90000cb71e8 EFLAGS: 00010246
[   16.128947][  T412] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   16.129270][  T412] RDX: 0000000000000000 RSI: ffff88800bd72c98 RDI: ffff88800a828b00
[   16.129572][  T412] RBP: ffff88800c2a8040 R08: 0000000000000000 R09: fffffbfff613d83c
[   16.129858][  T412] R10: ffffffffb09ec1e7 R11: ffff88800a828040 R12: 0000000000000000
[   16.130167][  T412] R13: ffff88800bd72128 R14: ffff88800bd72008 R15: ffff88800bd72000
[   16.130465][  T412] FS:  00007efcd3232800(0000) GS:ffff88802f780000(0000) knlGS:0000000000000000
[   16.130804][  T412] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.131047][  T412] CR2: 00007efcd35e2200 CR3: 0000000009518003 CR4: 0000000000772ef0
[   16.131360][  T412] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   16.131661][  T412] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   16.131945][  T412] PKRU: 55555554
[   16.132119][  T412] Call Trace:
[   16.132273][  T412]  <TASK>
[ 16.132373][ T412] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 16.132568][ T412] ? __warn (kernel/panic.c:748) 
[ 16.132723][ T412] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 16.132916][ T412] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 16.133147][ T412] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 16.133300][ T412] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 16.133508][ T412] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 16.133715][ T412] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 16.133918][ T412] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 16.134128][ T412] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 16.134386][ T412] ? _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) 
[ 16.134586][ T412] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 16.134799][ T412] register_netdevice (net/core/dev.c:11003) 
[ 16.134999][ T412] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 16.135231][ T412] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 16.135454][ T412] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 16.135716][ T412] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 16.135978][ T412] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 16.136246][ T412] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 16.136504][ T412] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 16.136751][ T412] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 16.137010][ T412] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 16.137220][ T412] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 16.137478][ T412] devlink_reload (net/devlink/dev.c:474) 
[ 16.137679][ T412] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 16.137876][ T412] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 16.138131][ T412] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 16.138328][ T412] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 16.138566][ T412] ? __nla_parse (lib/nlattr.c:732) 
[ 16.138769][ T412] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 16.138965][ T412] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 16.139237][ T412] ? cap_capable (security/commoncap.c:131) 
[ 16.139447][ T412] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 16.139652][ T412] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 16.139851][ T412] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 16.140046][ T412] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 16.140308][ T412] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 16.140559][ T412] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 16.140828][ T412] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 16.141025][ T412] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 16.141228][ T412] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 16.141435][ T412] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 16.141655][ T412] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 16.141807][ T412] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 16.142021][ T412] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 16.142235][ T412] genl_rcv (net/netlink/genetlink.c:1220) 
[ 16.142391][ T412] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 16.142587][ T412] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 16.142794][ T412] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 16.142994][ T412] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 16.143223][ T412] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 16.143421][ T412] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 16.143620][ T412] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 16.143831][ T412] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 16.144035][ T412] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 16.144254][ T412] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 16.144454][ T412] ? __sys_recvmsg (net/socket.c:2859) 
[ 16.144648][ T412] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 16.144849][ T412] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 16.145046][ T412] __x64_sys_sendto (net/socket.c:2181) 
[ 16.145247][ T412] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 16.145494][ T412] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 16.145692][ T412] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   16.145929][  T412] RIP: 0033:0x7efcd343ea4a
[ 16.146136][ T412] 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
[   16.146802][  T412] RSP: 002b:00007ffcb8c2c298 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   16.147123][  T412] RAX: ffffffffffffffda RBX: 000000000938cb00 RCX: 00007efcd343ea4a
[   16.147416][  T412] RDX: 0000000000000038 RSI: 000000000938cb00 RDI: 0000000000000005
[   16.147700][  T412] RBP: 000000000938c910 R08: 00007efcd35e2200 R09: 000000000000000c
[   16.147998][  T412] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   16.148301][  T412] R13: 000000000938c910 R14: 0000000000000000 R15: 0000000000000003
| [   16.804485][  T423] ------------[ cut here ]------------
| [ 16.804788][ T423] WARNING: CPU: 2 PID: 423 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   16.805259][  T423] Modules linked in: netdevsim
| [   16.805881][  T423] Tainted: [W]=WARN
[   16.806054][  T423] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 16.806346][ T423] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 16.806626][ T423] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   16.807379][  T423] RSP: 0018:ffffc90000d271e8 EFLAGS: 00010246
[   16.807663][  T423] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   16.807989][  T423] RDX: 0000000000000000 RSI: ffff8880023d2c98 RDI: ffff888005c3adc0
[   16.808327][  T423] RBP: ffff88800c2a8040 R08: 0000000000000000 R09: fffffbfff613d83c
[   16.808661][  T423] R10: ffffffffb09ec1e7 R11: ffff888005c3a300 R12: 0000000000000000
[   16.808991][  T423] R13: ffff8880023d2128 R14: ffff8880023d2008 R15: ffff8880023d2000
[   16.809331][  T423] FS:  00007f4911e77800(0000) GS:ffff88802f700000(0000) knlGS:0000000000000000
[   16.809703][  T423] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   16.809973][  T423] CR2: 00007f4912227200 CR3: 0000000009518001 CR4: 0000000000772ef0
[   16.810361][  T423] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   16.810694][  T423] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   16.811017][  T423] PKRU: 55555554
[   16.811200][  T423] Call Trace:
[   16.811368][  T423]  <TASK>
[ 16.811488][ T423] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 16.811710][ T423] ? __warn (kernel/panic.c:748) 
[ 16.811889][ T423] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 16.812128][ T423] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 16.812361][ T423] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 16.812534][ T423] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 16.812756][ T423] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 16.812994][ T423] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 16.813259][ T423] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 16.813490][ T423] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 16.813763][ T423] ? _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) 
[ 16.813983][ T423] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 16.814215][ T423] register_netdevice (net/core/dev.c:11003) 
[ 16.814443][ T423] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 16.814670][ T423] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 16.814906][ T423] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 16.815201][ T423] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 16.815490][ T423] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 16.815768][ T423] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 16.816039][ T423] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 16.816321][ T423] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 16.816594][ T423] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 16.816813][ T423] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 16.817124][ T423] devlink_reload (net/devlink/dev.c:474) 
[ 16.817349][ T423] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 16.817568][ T423] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 16.817846][ T423] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 16.818082][ T423] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 16.818353][ T423] ? __nla_parse (lib/nlattr.c:732) 
[ 16.818583][ T423] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 16.818803][ T423] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 16.819102][ T423] ? cap_capable (security/commoncap.c:131) 
[ 16.819316][ T423] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 16.819542][ T423] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 16.819761][ T423] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 16.819984][ T423] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 16.820272][ T423] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 16.820553][ T423] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 16.820834][ T423] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 16.821083][ T423] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 16.821300][ T423] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 16.821520][ T423] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 16.821750][ T423] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 16.821915][ T423] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 16.822151][ T423] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 16.822379][ T423] genl_rcv (net/netlink/genetlink.c:1220) 
[ 16.822546][ T423] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 16.822763][ T423] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 16.822980][ T423] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 16.823220][ T423] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 16.823442][ T423] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 16.823651][ T423] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 16.823884][ T423] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 16.824121][ T423] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 16.824347][ T423] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 16.824567][ T423] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 16.824798][ T423] ? __sys_recvmsg (net/socket.c:2859) 
[ 16.825013][ T423] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 16.825269][ T423] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 16.825491][ T423] __x64_sys_sendto (net/socket.c:2181) 
[ 16.825716][ T423] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 16.825979][ T423] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 16.826216][ T423] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   16.826484][  T423] RIP: 0033:0x7f4912083a4a
[ 16.826713][ T423] 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
[   16.827450][  T423] RSP: 002b:00007ffe23ffdc18 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   16.827764][  T423] RAX: ffffffffffffffda RBX: 0000000024b27b00 RCX: 00007f4912083a4a
[   16.828090][  T423] RDX: 0000000000000038 RSI: 0000000024b27b00 RDI: 0000000000000005
[   16.828408][  T423] RBP: 0000000024b27910 R08: 00007f4912227200 R09: 000000000000000c
[   16.828729][  T423] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   16.829042][  T423] R13: 0000000024b27910 R14: 0000000000000000 R15: 0000000000000003
| [   17.917566][  T455] ------------[ cut here ]------------
| [ 17.917853][ T455] WARNING: CPU: 1 PID: 455 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   17.918689][  T455] Modules linked in: netdevsim
| [   17.919257][  T455] Tainted: [W]=WARN
[   17.919407][  T455] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 17.919644][ T455] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 17.919903][ T455] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   17.920589][  T455] RSP: 0018:ffffc90000e971e8 EFLAGS: 00010246
[   17.920862][  T455] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   17.921161][  T455] RDX: 0000000000000000 RSI: ffff88800bc0ac98 RDI: ffff88800c3b2dc0
[   17.921447][  T455] RBP: ffff88800c2a8040 R08: 0000000000000000 R09: fffffbfff613d83c
[   17.921735][  T455] R10: ffffffffb09ec1e7 R11: ffff88800c3b2300 R12: 0000000000000000
[   17.922047][  T455] R13: ffff88800bc0a128 R14: ffff88800bc0a008 R15: ffff88800bc0a000
[   17.922352][  T455] FS:  00007fc1e3ca7800(0000) GS:ffff88802f680000(0000) knlGS:0000000000000000
[   17.922682][  T455] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.922940][  T455] CR2: 00007fc1e4057200 CR3: 000000000c32c003 CR4: 0000000000772ef0
[   17.923268][  T455] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   17.923552][  T455] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   17.923844][  T455] PKRU: 55555554
[   17.923987][  T455] Call Trace:
[   17.924157][  T455]  <TASK>
[ 17.924259][ T455] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 17.924452][ T455] ? __warn (kernel/panic.c:748) 
[ 17.924606][ T455] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 17.924807][ T455] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 17.925011][ T455] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 17.925177][ T455] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 17.925394][ T455] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 17.925608][ T455] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 17.925805][ T455] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 17.926004][ T455] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 17.926259][ T455] ? _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) 
[ 17.926460][ T455] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 17.926660][ T455] register_netdevice (net/core/dev.c:11003) 
[ 17.926863][ T455] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 17.927090][ T455] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 17.927311][ T455] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 17.927575][ T455] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 17.927844][ T455] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 17.928132][ T455] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 17.928398][ T455] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 17.928653][ T455] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 17.928913][ T455] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 17.929119][ T455] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 17.929378][ T455] devlink_reload (net/devlink/dev.c:474) 
[ 17.929593][ T455] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 17.929802][ T455] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 17.930078][ T455] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 17.930288][ T455] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 17.930539][ T455] ? __nla_parse (lib/nlattr.c:732) 
[ 17.930745][ T455] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 17.930941][ T455] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 17.931207][ T455] ? cap_capable (security/commoncap.c:131) 
[ 17.931404][ T455] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 17.931606][ T455] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 17.931804][ T455] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 17.931995][ T455] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 17.932245][ T455] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 17.932483][ T455] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 17.932733][ T455] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 17.932926][ T455] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 17.933136][ T455] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 17.933337][ T455] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 17.933542][ T455] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 17.933688][ T455] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 17.933884][ T455] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 17.934101][ T455] genl_rcv (net/netlink/genetlink.c:1220) 
[ 17.934249][ T455] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 17.934446][ T455] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 17.934641][ T455] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 17.934844][ T455] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 17.935045][ T455] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 17.935245][ T455] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 17.935441][ T455] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 17.935643][ T455] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 17.935840][ T455] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 17.936030][ T455] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 17.936232][ T455] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 17.936444][ T455] ? __sys_recvmsg (net/socket.c:2859) 
[ 17.936636][ T455] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 17.936838][ T455] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 17.937036][ T455] __x64_sys_sendto (net/socket.c:2181) 
[ 17.937240][ T455] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 17.937487][ T455] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 17.937693][ T455] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   17.937940][  T455] RIP: 0033:0x7fc1e3eb3a4a
[ 17.938161][ T455] 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
[   17.938847][  T455] RSP: 002b:00007ffd5367d248 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   17.939164][  T455] RAX: ffffffffffffffda RBX: 0000000020372b00 RCX: 00007fc1e3eb3a4a
[   17.939466][  T455] RDX: 0000000000000038 RSI: 0000000020372b00 RDI: 0000000000000005
[   17.939764][  T455] RBP: 0000000020372910 R08: 00007fc1e4057200 R09: 000000000000000c
[   17.940081][  T455] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   17.940376][  T455] R13: 0000000020372910 R14: 0000000000000000 R15: 0000000000000003
| [   18.883467][  T471] ------------[ cut here ]------------
| [ 18.883790][ T471] WARNING: CPU: 2 PID: 471 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   18.884254][  T471] Modules linked in: netdevsim
| [   18.884852][  T471] Tainted: [W]=WARN
[   18.885019][  T471] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.885305][ T471] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 18.885589][ T471] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   18.886319][  T471] RSP: 0018:ffffc90000f271e8 EFLAGS: 00010246
[   18.886591][  T471] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   18.886910][  T471] RDX: 0000000000000000 RSI: ffff8880024cac98 RDI: ffff888006192dc0
[   18.887237][  T471] RBP: ffff88800c2a8040 R08: 0000000000000000 R09: fffffbfff613d83c
[   18.887554][  T471] R10: ffffffffb09ec1e7 R11: ffff888006192300 R12: 0000000000000000
[   18.887867][  T471] R13: ffff8880024ca128 R14: ffff8880024ca008 R15: ffff8880024ca000
[   18.888211][  T471] FS:  00007fd46aaf0800(0000) GS:ffff88802f700000(0000) knlGS:0000000000000000
[   18.888576][  T471] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.888847][  T471] CR2: 00007fd46aea0200 CR3: 000000000c3ce005 CR4: 0000000000772ef0
[   18.889182][  T471] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   18.889500][  T471] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   18.889814][  T471] PKRU: 55555554
[   18.889984][  T471] Call Trace:
[   18.890165][  T471]  <TASK>
[ 18.890287][ T471] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 18.890503][ T471] ? __warn (kernel/panic.c:748) 
[ 18.890678][ T471] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 18.890895][ T471] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 18.891133][ T471] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 18.891308][ T471] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 18.891526][ T471] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 18.891759][ T471] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 18.891979][ T471] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 18.892230][ T471] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 18.892503][ T471] ? _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) 
[ 18.892725][ T471] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 18.892950][ T471] register_netdevice (net/core/dev.c:11003) 
[ 18.893193][ T471] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 18.893419][ T471] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 18.893656][ T471] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 18.893927][ T471] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 18.894223][ T471] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 18.894507][ T471] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 18.894782][ T471] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 18.895053][ T471] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 18.895343][ T471] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 18.895557][ T471] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 18.895840][ T471] devlink_reload (net/devlink/dev.c:474) 
[ 18.896089][ T471] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 18.896311][ T471] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 18.896593][ T471] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 18.896849][ T471] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 18.897142][ T471] ? __nla_parse (lib/nlattr.c:732) 
[ 18.897369][ T471] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 18.897595][ T471] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 18.897871][ T471] ? cap_capable (security/commoncap.c:131) 
[ 18.898104][ T471] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 18.898329][ T471] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 18.898546][ T471] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 18.898764][ T471] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 18.899031][ T471] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 18.899309][ T471] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 18.899584][ T471] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 18.899803][ T471] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 18.900017][ T471] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 18.900262][ T471] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 18.900491][ T471] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 18.900662][ T471] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 18.900884][ T471] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 18.901119][ T471] genl_rcv (net/netlink/genetlink.c:1220) 
[ 18.901285][ T471] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 18.901505][ T471] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 18.901721][ T471] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 18.901947][ T471] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 18.902183][ T471] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 18.902401][ T471] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 18.902618][ T471] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 18.902841][ T471] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 18.903074][ T471] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 18.903316][ T471] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 18.903539][ T471] ? __sys_recvmsg (net/socket.c:2859) 
[ 18.903754][ T471] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 18.903981][ T471] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 18.904230][ T471] __x64_sys_sendto (net/socket.c:2181) 
[ 18.904452][ T471] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 18.904712][ T471] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 18.904937][ T471] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.905212][  T471] RIP: 0033:0x7fd46acfca4a
[ 18.905437][ T471] 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
[   18.906165][  T471] RSP: 002b:00007fff35fc8d18 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   18.906482][  T471] RAX: ffffffffffffffda RBX: 00000000327ceb00 RCX: 00007fd46acfca4a
[   18.906798][  T471] RDX: 0000000000000038 RSI: 00000000327ceb00 RDI: 0000000000000005
[   18.907131][  T471] RBP: 00000000327ce910 R08: 00007fd46aea0200 R09: 000000000000000c
[   18.907444][  T471] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   18.907758][  T471] R13: 00000000327ce910 R14: 0000000000000000 R15: 0000000000000003
| [  290.468764][  T983] ------------[ cut here ]------------
| [ 290.469087][ T983] WARNING: CPU: 2 PID: 983 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  290.469520][  T983] Modules linked in: netdevsim
| [  290.470135][  T983] Tainted: [W]=WARN
[  290.470309][  T983] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 290.470579][ T983] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 290.470851][ T983] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  290.471591][  T983] RSP: 0018:ffffc90001f171e8 EFLAGS: 00010246
[  290.471879][  T983] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  290.472209][  T983] RDX: 0000000000000000 RSI: ffff888009a12c98 RDI: ffff88800e278b00
[  290.472525][  T983] RBP: ffff88800c2a8040 R08: 0000000000000000 R09: fffffbfff613d83c
[  290.472845][  T983] R10: ffffffffb09ec1e7 R11: ffff88800e278040 R12: 0000000000000000
[  290.473180][  T983] R13: ffff888009a12128 R14: ffff888009a12008 R15: ffff888009a12000
[  290.473492][  T983] FS:  00007f4d744f6800(0000) GS:ffff88802f700000(0000) knlGS:0000000000000000
[  290.473855][  T983] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  290.474218][  T983] CR2: 00007f2d13b61000 CR3: 0000000009916003 CR4: 0000000000772ef0
[  290.474618][  T983] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  290.475008][  T983] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  290.475427][  T983] PKRU: 55555554
[  290.475674][  T983] Call Trace:
[  290.475921][  T983]  <TASK>
[ 290.476051][ T983] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 290.476287][ T983] ? __warn (kernel/panic.c:748) 
[ 290.476459][ T983] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 290.476684][ T983] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 290.476905][ T983] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 290.477095][ T983] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 290.477315][ T983] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 290.477544][ T983] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 290.477763][ T983] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 290.477995][ T983] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 290.478282][ T983] ? _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) 
[ 290.478504][ T983] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 290.478730][ T983] register_netdevice (net/core/dev.c:11003) 
[ 290.478956][ T983] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 290.479202][ T983] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 290.479439][ T983] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 290.479723][ T983] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 290.480009][ T983] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 290.480306][ T983] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 290.480603][ T983] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 290.480876][ T983] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 290.481166][ T983] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 290.481385][ T983] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 290.481673][ T983] devlink_reload (net/devlink/dev.c:474) 
[ 290.481901][ T983] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 290.482137][ T983] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 290.482419][ T983] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 290.482649][ T983] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 290.482920][ T983] ? __nla_parse (lib/nlattr.c:732) 
[ 290.483166][ T983] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 290.483393][ T983] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 290.483677][ T983] ? cap_capable (security/commoncap.c:131) 
[ 290.483895][ T983] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 290.484135][ T983] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 290.484358][ T983] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 290.484580][ T983] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 290.484844][ T983] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 290.485129][ T983] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 290.485416][ T983] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 290.485640][ T983] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 290.485862][ T983] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 290.486099][ T983] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 290.486335][ T983] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 290.486517][ T983] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 290.486745][ T983] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 290.486973][ T983] genl_rcv (net/netlink/genetlink.c:1220) 
[ 290.487159][ T983] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 290.487382][ T983] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 290.487608][ T983] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 290.487841][ T983] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 290.488082][ T983] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 290.488301][ T983] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 290.488524][ T983] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 290.488753][ T983] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 290.488980][ T983] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 290.489245][ T983] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 290.489471][ T983] ? __sys_recvmsg (net/socket.c:2859) 
[ 290.489686][ T983] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 290.489926][ T983] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 290.490162][ T983] __x64_sys_sendto (net/socket.c:2181) 
[ 290.490389][ T983] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 290.490663][ T983] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 290.490881][ T983] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  290.491161][  T983] RIP: 0033:0x7f4d74702a4a
[ 290.491394][ T983] 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
[  290.492160][  T983] RSP: 002b:00007ffc280e4ee8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  290.492482][  T983] RAX: ffffffffffffffda RBX: 0000000010ffdb00 RCX: 00007f4d74702a4a
[  290.492804][  T983] RDX: 0000000000000038 RSI: 0000000010ffdb00 RDI: 0000000000000005
[  290.493143][  T983] RBP: 0000000010ffd910 R08: 00007f4d748a6200 R09: 000000000000000c
[  290.493479][  T983] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[  290.493800][  T983] R13: 0000000010ffd910 R14: 0000000000000000 R15: 0000000000000003
| [  291.195693][  T997] ------------[ cut here ]------------
| [ 291.195984][ T997] WARNING: CPU: 0 PID: 997 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  291.196512][  T997] Modules linked in: netdevsim
| [  291.197191][  T997] Tainted: [W]=WARN
[  291.197374][  T997] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 291.197670][ T997] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 291.197969][ T997] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  291.198836][  T997] RSP: 0018:ffffc90001f871e8 EFLAGS: 00010246
[  291.199144][  T997] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  291.199494][  T997] RDX: 0000000000000000 RSI: ffff88800a292c98 RDI: ffff888009690b00
[  291.199835][  T997] RBP: ffff88800c2a8040 R08: 0000000000000000 R09: fffffbfff613d83c
[  291.200187][  T997] R10: ffffffffb09ec1e7 R11: ffff888009690040 R12: 0000000000000000
[  291.200527][  T997] R13: ffff88800a292128 R14: ffff88800a292008 R15: ffff88800a292000
[  291.200877][  T997] FS:  00007f5435689800(0000) GS:ffff88802f600000(0000) knlGS:0000000000000000
[  291.201291][  T997] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  291.201584][  T997] CR2: 00007f5435a39200 CR3: 0000000009bee002 CR4: 0000000000772ef0
[  291.201938][  T997] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  291.202300][  T997] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  291.202644][  T997] PKRU: 55555554
[  291.202825][  T997] Call Trace:
[  291.203002][  T997]  <TASK>
[ 291.203143][ T997] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 291.203376][ T997] ? __warn (kernel/panic.c:748) 
[ 291.203558][ T997] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 291.203800][ T997] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 291.204042][ T997] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 291.204232][ T997] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 291.204463][ T997] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 291.204706][ T997] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 291.204938][ T997] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 291.205190][ T997] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 291.205486][ T997] ? _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) 
[ 291.205726][ T997] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 291.205959][ T997] register_netdevice (net/core/dev.c:11003) 
[ 291.206212][ T997] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 291.206454][ T997] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 291.206701][ T997] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 291.206999][ T997] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 291.207320][ T997] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 291.207625][ T997] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 291.207922][ T997] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 291.208226][ T997] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 291.208521][ T997] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 291.208758][ T997] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 291.209057][ T997] devlink_reload (net/devlink/dev.c:474) 
[ 291.209322][ T997] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 291.209556][ T997] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 291.209852][ T997] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 291.210103][ T997] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 291.210394][ T997] ? __nla_parse (lib/nlattr.c:732) 
[ 291.210642][ T997] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 291.210878][ T997] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 291.211190][ T997] ? cap_capable (security/commoncap.c:131) 
[ 291.211426][ T997] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 291.211676][ T997] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 291.211917][ T997] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 291.212158][ T997] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 291.212454][ T997] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 291.212738][ T997] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 291.213034][ T997] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 291.213282][ T997] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 291.213517][ T997] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 291.213753][ T997] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 291.214003][ T997] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 291.214189][ T997] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 291.214425][ T997] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 291.214666][ T997] genl_rcv (net/netlink/genetlink.c:1220) 
[ 291.214842][ T997] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 291.215091][ T997] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 291.215327][ T997] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 291.215565][ T997] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 291.215808][ T997] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 291.216037][ T997] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 291.216280][ T997] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 291.216526][ T997] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 291.216765][ T997] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 291.217004][ T997] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 291.217258][ T997] ? __sys_recvmsg (net/socket.c:2859) 
[ 291.217489][ T997] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 291.217732][ T997] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 291.217968][ T997] __x64_sys_sendto (net/socket.c:2181) 
[ 291.218214][ T997] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 291.218501][ T997] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 291.218736][ T997] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  291.219022][  T997] RIP: 0033:0x7f5435895a4a
[ 291.219268][ T997] 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
[  291.220082][  T997] RSP: 002b:00007ffe3fa04c88 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  291.220433][  T997] RAX: ffffffffffffffda RBX: 00000000276bdb00 RCX: 00007f5435895a4a
[  291.220775][  T997] RDX: 0000000000000038 RSI: 00000000276bdb00 RDI: 0000000000000005
[  291.221141][  T997] RBP: 00000000276bd910 R08: 00007f5435a39200 R09: 000000000000000c
[  291.221485][  T997] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[  291.221832][  T997] R13: 00000000276bd910 R14: 0000000000000000 R15: 0000000000000003
| [  292.306229][ T1028] ------------[ cut here ]------------
| [ 292.306864][ T1028] WARNING: CPU: 3 PID: 1028 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  292.307596][ T1028] Modules linked in: netdevsim
| [  292.308616][ T1028] Tainted: [W]=WARN
[  292.308876][ T1028] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 292.309331][ T1028] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 292.309739][ T1028] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  292.311037][ T1028] RSP: 0018:ffffc900020b71e8 EFLAGS: 00010246
[  292.311509][ T1028] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  292.312008][ T1028] RDX: 0000000000000000 RSI: ffff88800bd72c98 RDI: ffff88800bebadc0
[  292.312466][ T1028] RBP: ffff88800c2a8040 R08: 0000000000000000 R09: fffffbfff613d83c
[  292.312899][ T1028] R10: ffffffffb09ec1e7 R11: ffff88800beba300 R12: 0000000000000000
[  292.313399][ T1028] R13: ffff88800bd72128 R14: ffff88800bd72008 R15: ffff88800bd72000
[  292.313891][ T1028] FS:  00007f505a052800(0000) GS:ffff88802f780000(0000) knlGS:0000000000000000
[  292.314555][ T1028] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  292.315238][ T1028] CR2: 00007f505a402200 CR3: 000000000a9d2002 CR4: 0000000000772ef0
[  292.315887][ T1028] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  292.316528][ T1028] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  292.317154][ T1028] PKRU: 55555554
[  292.317406][ T1028] Call Trace:
[  292.317685][ T1028]  <TASK>
[ 292.317838][ T1028] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 292.318164][ T1028] ? __warn (kernel/panic.c:748) 
[ 292.318393][ T1028] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 292.318739][ T1028] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 292.319053][ T1028] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 292.319439][ T1028] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 292.319800][ T1028] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 292.320195][ T1028] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 292.320581][ T1028] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 292.320923][ T1028] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 292.321399][ T1028] ? _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) 
[ 292.321790][ T1028] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 292.322131][ T1028] register_netdevice (net/core/dev.c:11003) 
[ 292.322436][ T1028] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 292.322747][ T1028] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 292.323182][ T1028] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 292.324187][ T1028] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 292.324540][ T1028] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 292.324910][ T1028] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 292.325336][ T1028] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 292.325769][ T1028] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 292.326180][ T1028] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 292.326482][ T1028] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 292.326940][ T1028] devlink_reload (net/devlink/dev.c:474) 
[ 292.327401][ T1028] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 292.327778][ T1028] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 292.328247][ T1028] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 292.328564][ T1028] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 292.328989][ T1028] ? __nla_parse (lib/nlattr.c:732) 
[ 292.329394][ T1028] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 292.329740][ T1028] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 292.330183][ T1028] ? cap_capable (security/commoncap.c:131) 
[ 292.330514][ T1028] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 292.330842][ T1028] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 292.331251][ T1028] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 292.331564][ T1028] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 292.331956][ T1028] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 292.332375][ T1028] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 292.332781][ T1028] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 292.333136][ T1028] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 292.333438][ T1028] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 292.333761][ T1028] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 292.334110][ T1028] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 292.334337][ T1028] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 292.334655][ T1028] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 292.334997][ T1028] genl_rcv (net/netlink/genetlink.c:1220) 
[ 292.335362][ T1028] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 292.335741][ T1028] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 292.336139][ T1028] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 292.336521][ T1028] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 292.336888][ T1028] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 292.337244][ T1028] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 292.337593][ T1028] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 292.337911][ T1028] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 292.338243][ T1028] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 292.338564][ T1028] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 292.338889][ T1028] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 292.339332][ T1028] ? __sys_recvmsg (net/socket.c:2859) 
[ 292.339649][ T1028] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 292.340015][ T1028] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 292.340392][ T1028] __x64_sys_sendto (net/socket.c:2181) 
[ 292.340727][ T1028] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 292.341109][ T1028] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 292.341399][ T1028] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  292.341766][ T1028] RIP: 0033:0x7f505a25ea4a
[ 292.342103][ T1028] 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
[  292.343275][ T1028] RSP: 002b:00007ffe1c25b368 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  292.343726][ T1028] RAX: ffffffffffffffda RBX: 0000000020dccb00 RCX: 00007f505a25ea4a
[  292.344247][ T1028] RDX: 0000000000000038 RSI: 0000000020dccb00 RDI: 0000000000000005
[  292.344779][ T1028] RBP: 0000000020dcc910 R08: 00007f505a402200 R09: 000000000000000c
[  292.345343][ T1028] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[  292.345879][ T1028] R13: 0000000020dcc910 R14: 0000000000000000 R15: 0000000000000003
| [  293.374115][ T1046] ------------[ cut here ]------------
| [ 293.374399][ T1046] WARNING: CPU: 0 PID: 1046 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  293.374819][ T1046] Modules linked in: netdevsim
| [  293.375414][ T1046] Tainted: [W]=WARN
[  293.375570][ T1046] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 293.375832][ T1046] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 293.376102][ T1046] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  293.376800][ T1046] RSP: 0018:ffffc900021471e8 EFLAGS: 00010246
[  293.377052][ T1046] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  293.377380][ T1046] RDX: 0000000000000000 RSI: ffff8880023d2c98 RDI: ffff88800d902dc0
[  293.377675][ T1046] RBP: ffff88800c2a8040 R08: 0000000000000000 R09: fffffbfff613d83c
[  293.377985][ T1046] R10: ffffffffb09ec1e7 R11: ffff88800d902300 R12: 0000000000000000
[  293.378294][ T1046] R13: ffff8880023d2128 R14: ffff8880023d2008 R15: ffff8880023d2000
[  293.378607][ T1046] FS:  00007efc48177800(0000) GS:ffff88802f600000(0000) knlGS:0000000000000000
[  293.378964][ T1046] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  293.379239][ T1046] CR2: 00007f9669a2c5a0 CR3: 00000000024c4006 CR4: 0000000000772ef0
[  293.379538][ T1046] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  293.379844][ T1046] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  293.380166][ T1046] PKRU: 55555554
[  293.380322][ T1046] Call Trace:
[  293.380475][ T1046]  <TASK>
[ 293.380580][ T1046] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 293.380787][ T1046] ? __warn (kernel/panic.c:748) 
[ 293.380945][ T1046] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 293.381187][ T1046] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 293.381406][ T1046] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 293.381563][ T1046] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 293.381775][ T1046] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 293.381990][ T1046] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 293.382210][ T1046] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 293.382421][ T1046] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 293.382675][ T1046] ? _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) 
[ 293.382889][ T1046] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 293.383105][ T1046] register_netdevice (net/core/dev.c:11003) 
[ 293.383316][ T1046] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 293.383528][ T1046] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 293.383764][ T1046] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 293.384027][ T1046] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 293.384317][ T1046] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 293.384584][ T1046] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 293.384859][ T1046] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 293.385130][ T1046] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 293.385385][ T1046] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 293.385593][ T1046] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 293.385870][ T1046] devlink_reload (net/devlink/dev.c:474) 
[ 293.386102][ T1046] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 293.386331][ T1046] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 293.386601][ T1046] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 293.386819][ T1046] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 293.387111][ T1046] ? __nla_parse (lib/nlattr.c:732) 
[ 293.387337][ T1046] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 293.387558][ T1046] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 293.387841][ T1046] ? cap_capable (security/commoncap.c:131) 
[ 293.388043][ T1046] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 293.388280][ T1046] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 293.388489][ T1046] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 293.388700][ T1046] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 293.388970][ T1046] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 293.389231][ T1046] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 293.389494][ T1046] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 293.389700][ T1046] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 293.389901][ T1046] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 293.390136][ T1046] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 293.390355][ T1046] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 293.390537][ T1046] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 293.390747][ T1046] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 293.390968][ T1046] genl_rcv (net/netlink/genetlink.c:1220) 
[ 293.391150][ T1046] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 293.391359][ T1046] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 293.391589][ T1046] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 293.391830][ T1046] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 293.392071][ T1046] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 293.392287][ T1046] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 293.392504][ T1046] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 293.392734][ T1046] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 293.392947][ T1046] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 293.393184][ T1046] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 293.393394][ T1046] ? __sys_recvmsg (net/socket.c:2859) 
[ 293.393613][ T1046] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 293.393848][ T1046] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 293.394084][ T1046] __x64_sys_sendto (net/socket.c:2181) 
[ 293.394296][ T1046] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 293.394570][ T1046] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 293.394790][ T1046] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  293.395054][ T1046] RIP: 0033:0x7efc48383a4a
[ 293.395301][ T1046] 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
[  293.396045][ T1046] RSP: 002b:00007ffc18ef0048 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  293.396381][ T1046] RAX: ffffffffffffffda RBX: 00000000040c7b00 RCX: 00007efc48383a4a
[  293.396701][ T1046] RDX: 0000000000000038 RSI: 00000000040c7b00 RDI: 0000000000000005
[  293.397023][ T1046] RBP: 00000000040c7910 R08: 00007efc48527200 R09: 000000000000000c
[  293.397354][ T1046] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[  293.397666][ T1046] R13: 00000000040c7910 R14: 0000000000000000 R15: 0000000000000003
| [  297.013684][ T1138] ------------[ cut here ]------------
| [ 297.014235][ T1138] WARNING: CPU: 3 PID: 1138 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  297.014862][ T1138] Modules linked in: netdevsim
| [  297.015781][ T1138] Tainted: [W]=WARN
[  297.016029][ T1138] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 297.016453][ T1138] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 297.016872][ T1138] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  297.017941][ T1138] RSP: 0018:ffffc900024871e8 EFLAGS: 00010246
[  297.018346][ T1138] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  297.018824][ T1138] RDX: 0000000000000000 RSI: ffff88800bc0ac98 RDI: ffff888004e2adc0
[  297.019296][ T1138] RBP: ffff88800c2a8040 R08: 0000000000000000 R09: fffffbfff613d83c
[  297.019740][ T1138] R10: ffffffffb09ec1e7 R11: ffff888004e2a300 R12: 0000000000000000
[  297.020191][ T1138] R13: ffff88800bc0a128 R14: ffff88800bc0a008 R15: ffff88800bc0a000
[  297.020629][ T1138] FS:  00007f462e664800(0000) GS:ffff88802f780000(0000) knlGS:0000000000000000
[  297.021170][ T1138] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  297.021576][ T1138] CR2: 000055e65e28ddec CR3: 000000000e28a004 CR4: 0000000000772ef0
[  297.022111][ T1138] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  297.022548][ T1138] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  297.022974][ T1138] PKRU: 55555554
[  297.023230][ T1138] Call Trace:
[  297.023460][ T1138]  <TASK>
[ 297.023611][ T1138] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 297.023960][ T1138] ? __warn (kernel/panic.c:748) 
[ 297.024233][ T1138] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 297.024553][ T1138] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 297.024896][ T1138] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 297.025177][ T1138] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 297.025510][ T1138] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 297.025857][ T1138] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 297.026229][ T1138] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 297.026587][ T1138] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 297.027011][ T1138] ? _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) 
[ 297.027367][ T1138] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 297.027683][ T1138] register_netdevice (net/core/dev.c:11003) 
[ 297.027975][ T1138] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 297.028308][ T1138] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 297.028689][ T1138] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 297.029156][ T1138] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 297.029556][ T1138] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 297.029927][ T1138] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 297.030335][ T1138] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 297.030764][ T1138] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 297.031224][ T1138] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 297.031542][ T1138] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 297.032007][ T1138] devlink_reload (net/devlink/dev.c:474) 
[ 297.032325][ T1138] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 297.032622][ T1138] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 297.033154][ T1138] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 297.033514][ T1138] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 297.033871][ T1138] ? __nla_parse (lib/nlattr.c:732) 
[ 297.034203][ T1138] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 297.034539][ T1138] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 297.034954][ T1138] ? cap_capable (security/commoncap.c:131) 
[ 297.035329][ T1138] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 297.035699][ T1138] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 297.036035][ T1138] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 297.036366][ T1138] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 297.036730][ T1138] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 297.037055][ T1138] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 297.037546][ T1138] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 297.037971][ T1138] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 297.038349][ T1138] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 297.038754][ T1138] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 297.039217][ T1138] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 297.039485][ T1138] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 297.039760][ T1138] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 297.040037][ T1138] genl_rcv (net/netlink/genetlink.c:1220) 
[ 297.040279][ T1138] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 297.040586][ T1138] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 297.040876][ T1138] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 297.041233][ T1138] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 297.041530][ T1138] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 297.041899][ T1138] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 297.042272][ T1138] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 297.042626][ T1138] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 297.042976][ T1138] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 297.043342][ T1138] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 297.043649][ T1138] ? __sys_recvmsg (net/socket.c:2859) 
[ 297.043942][ T1138] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 297.044250][ T1138] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 297.044550][ T1138] __x64_sys_sendto (net/socket.c:2181) 
[ 297.044865][ T1138] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 297.045408][ T1138] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 297.045791][ T1138] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  297.046217][ T1138] RIP: 0033:0x7f462e870a4a
[ 297.046524][ T1138] 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
[  297.047486][ T1138] RSP: 002b:00007fff7309f6d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  297.047899][ T1138] RAX: ffffffffffffffda RBX: 0000000027041b00 RCX: 00007f462e870a4a
[  297.048347][ T1138] RDX: 0000000000000038 RSI: 0000000027041b00 RDI: 0000000000000005
[  297.048768][ T1138] RBP: 0000000027041910 R08: 00007f462ea14200 R09: 000000000000000c
[  297.049214][ T1138] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[  297.049632][ T1138] R13: 0000000027041910 R14: 0000000000000000 R15: 0000000000000003
| [  298.075541][ T1152] ------------[ cut here ]------------
| [ 298.075886][ T1152] WARNING: CPU: 0 PID: 1152 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  298.076353][ T1152] Modules linked in: netdevsim
| [  298.076938][ T1152] Tainted: [W]=WARN
[  298.077118][ T1152] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 298.077381][ T1152] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 298.077647][ T1152] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  298.078395][ T1152] RSP: 0018:ffffc900025171e8 EFLAGS: 00010246
[  298.078659][ T1152] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  298.078964][ T1152] RDX: 0000000000000000 RSI: ffff8880024cac98 RDI: ffff88800e1fd080
[  298.079290][ T1152] RBP: ffff88800c2a8040 R08: 0000000000000000 R09: fffffbfff613d83c
[  298.079595][ T1152] R10: ffffffffb09ec1e7 R11: ffff88800e1fc5c0 R12: 0000000000000000
[  298.079908][ T1152] R13: ffff8880024ca128 R14: ffff8880024ca008 R15: ffff8880024ca000
[  298.080227][ T1152] FS:  00007f81bee83800(0000) GS:ffff88802f600000(0000) knlGS:0000000000000000
[  298.080590][ T1152] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  298.080846][ T1152] CR2: 00007f81bf233200 CR3: 000000000a30c002 CR4: 0000000000772ef0
[  298.081176][ T1152] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  298.081485][ T1152] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  298.081808][ T1152] PKRU: 55555554
[  298.081967][ T1152] Call Trace:
[  298.082136][ T1152]  <TASK>
[ 298.082247][ T1152] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 298.082459][ T1152] ? __warn (kernel/panic.c:748) 
[ 298.082621][ T1152] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 298.082836][ T1152] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 298.083056][ T1152] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 298.083229][ T1152] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 298.083442][ T1152] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 298.083665][ T1152] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 298.083875][ T1152] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 298.084100][ T1152] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 298.084366][ T1152] ? _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) 
[ 298.084580][ T1152] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 298.084794][ T1152] register_netdevice (net/core/dev.c:11003) 
[ 298.085005][ T1152] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 298.085246][ T1152] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 298.085474][ T1152] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 298.085741][ T1152] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 298.086026][ T1152] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 298.086319][ T1152] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 298.086591][ T1152] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 298.086856][ T1152] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 298.087130][ T1152] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 298.087340][ T1152] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 298.087613][ T1152] devlink_reload (net/devlink/dev.c:474) 
[ 298.087829][ T1152] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 298.088042][ T1152] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 298.088326][ T1152] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 298.088538][ T1152] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 298.088801][ T1152] ? __nla_parse (lib/nlattr.c:732) 
[ 298.089020][ T1152] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 298.089252][ T1152] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 298.089530][ T1152] ? cap_capable (security/commoncap.c:131) 
[ 298.089737][ T1152] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 298.089951][ T1152] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 298.090178][ T1152] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 298.090389][ T1152] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 298.090644][ T1152] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 298.090906][ T1152] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 298.091194][ T1152] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 298.091405][ T1152] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 298.091619][ T1152] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 298.091831][ T1152] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 298.092055][ T1152] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 298.092227][ T1152] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 298.092438][ T1152] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 298.092656][ T1152] genl_rcv (net/netlink/genetlink.c:1220) 
[ 298.092816][ T1152] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 298.093032][ T1152] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 298.093263][ T1152] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 298.093484][ T1152] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 298.093698][ T1152] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 298.093902][ T1152] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 298.094128][ T1152] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 298.094349][ T1152] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 298.094559][ T1152] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 298.094779][ T1152] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 298.094994][ T1152] ? __sys_recvmsg (net/socket.c:2859) 
[ 298.095217][ T1152] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 298.095438][ T1152] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 298.095652][ T1152] __x64_sys_sendto (net/socket.c:2181) 
[ 298.095865][ T1152] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 298.096134][ T1152] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 298.096345][ T1152] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  298.096603][ T1152] RIP: 0033:0x7f81bf08fa4a
[ 298.096818][ T1152] 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
[  298.097559][ T1152] RSP: 002b:00007ffe0cf901c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  298.097868][ T1152] RAX: ffffffffffffffda RBX: 0000000039ac1b00 RCX: 00007f81bf08fa4a
[  298.098191][ T1152] RDX: 0000000000000038 RSI: 0000000039ac1b00 RDI: 0000000000000005
[  298.098500][ T1152] RBP: 0000000039ac1910 R08: 00007f81bf233200 R09: 000000000000000c
[  298.098810][ T1152] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[  298.099132][ T1152] R13: 0000000039ac1910 R14: 0000000000000000 R15: 0000000000000003
| [  300.729052][ T1217] ------------[ cut here ]------------
| [ 300.729437][ T1217] WARNING: CPU: 3 PID: 1217 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  300.729856][ T1217] Modules linked in: netdevsim
| [  300.730451][ T1217] Tainted: [W]=WARN
[  300.730609][ T1217] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 300.730870][ T1217] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 300.731143][ T1217] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  300.731906][ T1217] RSP: 0018:ffffc900027771e8 EFLAGS: 00010246
[  300.732185][ T1217] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  300.732494][ T1217] RDX: 0000000000000000 RSI: ffff888009a12c98 RDI: ffff88800e232dc0
[  300.732796][ T1217] RBP: ffff88800c2a8040 R08: 0000000000000000 R09: fffffbfff613d83c
[  300.733114][ T1217] R10: ffffffffb09ec1e7 R11: ffff88800e232300 R12: 0000000000000000
[  300.733412][ T1217] R13: ffff888009a12128 R14: ffff888009a12008 R15: ffff888009a12000
[  300.733719][ T1217] FS:  00007fdd42675800(0000) GS:ffff88802f780000(0000) knlGS:0000000000000000
[  300.734081][ T1217] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  300.734339][ T1217] CR2: 00007fdd42a25200 CR3: 000000000bfec001 CR4: 0000000000772ef0
[  300.734644][ T1217] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  300.734938][ T1217] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  300.735249][ T1217] PKRU: 55555554
[  300.735405][ T1217] Call Trace:
[  300.735558][ T1217]  <TASK>
[ 300.735665][ T1217] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 300.735866][ T1217] ? __warn (kernel/panic.c:748) 
[ 300.736026][ T1217] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 300.736245][ T1217] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 300.736454][ T1217] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 300.736607][ T1217] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 300.736813][ T1217] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 300.737030][ T1217] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 300.737253][ T1217] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 300.737464][ T1217] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 300.737725][ T1217] ? _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) 
[ 300.737934][ T1217] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 300.738155][ T1217] register_netdevice (net/core/dev.c:11003) 
[ 300.738367][ T1217] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 300.738582][ T1217] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 300.738805][ T1217] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 300.739082][ T1217] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 300.739353][ T1217] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 300.739618][ T1217] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 300.739878][ T1217] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 300.740143][ T1217] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 300.740402][ T1217] ? devl_region_destroy (net/devlink/region.c:1178) 
[ 300.740606][ T1217] ? nsim_dev_reload_down (drivers/net/netdevsim/dev.c:969) netdevsim 
[ 300.740871][ T1217] devlink_reload (net/devlink/dev.c:474) 
[ 300.741089][ T1217] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 300.741301][ T1217] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 300.741563][ T1217] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 300.741790][ T1217] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 300.742044][ T1217] ? __nla_parse (lib/nlattr.c:732) 
[ 300.742275][ T1217] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 300.742483][ T1217] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 300.742751][ T1217] ? cap_capable (security/commoncap.c:131) 
[ 300.742955][ T1217] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 300.743180][ T1217] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 300.743385][ T1217] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 300.743589][ T1217] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 300.743841][ T1217] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 300.744104][ T1217] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 300.744368][ T1217] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 300.744574][ T1217] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 300.744779][ T1217] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 300.744986][ T1217] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 300.745223][ T1217] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 300.745378][ T1217] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 300.745587][ T1217] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 300.745804][ T1217] genl_rcv (net/netlink/genetlink.c:1220) 
[ 300.745971][ T1217] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 300.746194][ T1217] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 300.746398][ T1217] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 300.746609][ T1217] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 300.746815][ T1217] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 300.747014][ T1217] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 300.747228][ T1217] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 300.747440][ T1217] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 300.747651][ T1217] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 300.747861][ T1217] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 300.748081][ T1217] ? __sys_recvmsg (net/socket.c:2859) 
[ 300.748282][ T1217] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 300.748494][ T1217] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 300.748701][ T1217] __x64_sys_sendto (net/socket.c:2181) 
[ 300.748904][ T1217] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 300.749174][ T1217] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 300.749378][ T1217] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  300.749628][ T1217] RIP: 0033:0x7fdd42881a4a
[ 300.749837][ T1217] 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
[  300.750551][ T1217] RSP: 002b:00007ffe66c077f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  300.750869][ T1217] RAX: ffffffffffffffda RBX: 0000000034114b00 RCX: 00007fdd42881a4a
[  300.751176][ T1217] RDX: 0000000000000038 RSI: 0000000034114b00 RDI: 0000000000000005
[  300.751472][ T1217] RBP: 0000000034114910 R08: 00007fdd42a25200 R09: 000000000000000c
[  300.751781][ T1217] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[  300.752094][ T1217] R13: 0000000034114910 R14: 0000000000000000 R15: 0000000000000003
| [  301.957096][ T1247] ------------[ cut here ]------------
| [ 301.957351][ T1247] WARNING: CPU: 0 PID: 1247 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  301.957749][ T1247] Modules linked in: netdevsim
| [  301.958329][ T1247] Tainted: [W]=WARN
[  301.958483][ T1247] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 301.958734][ T1247] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 301.959002][ T1247] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  301.959863][ T1247] RSP: 0018:ffffc900028871e8 EFLAGS: 00010246
[  301.960342][ T1247] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  301.960650][ T1247] RDX: 0000000000000000 RSI: ffff88800a292c98 RDI: ffff88800e1fadc0
[  301.960944][ T1247] RBP: ffff88800c2a8040 R08: 0000000000000000 R09: fffffbfff613d83c
[  301.961348][ T1247] R10: ffffffffb09ec1e7 R11: ffff88800e1fa300 R12: 0000000000000000
[  301.961656][ T1247] R13: ffff88800a292128 R14: ffff88800a292008 R15: ffff88800a292000
[  301.961959][ T1247] FS:  00007f58492ff800(0000) GS:ffff88802f600000(0000) knlGS:0000000000000000
[  301.962397][ T1247] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  301.962647][ T1247] CR2: 00007f58496af200 CR3: 000000000c3d6002 CR4: 0000000000772ef0
[  301.962947][ T1247] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  301.963318][ T1247] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  301.963621][ T1247] PKRU: 55555554
[  301.963778][ T1247] Call Trace:
[  301.963932][ T1247]  <TASK>
[ 301.964037][ T1247] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 301.964256][ T1247] ? __warn (kernel/panic.c:748) 
[ 301.964415][ T1247] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 301.964624][ T1247] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 301.964834][ T1247] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 301.964989][ T1247] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 301.965211][ T1247] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 301.965429][ T1247] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 301.965635][ T1247] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 301.965842][ T1247] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 301.966108][ T1247] ? _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) 
[ 301.966319][ T1247] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 301.966524][ T1247] register_netdevice (net/core/dev.c:11003) 
[ 301.966730][ T1247] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 301.966945][ T1247] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 301.967183][ T1247] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 301.967446][ T1247] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 301.967715][ T1247] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 301.967984][ T1247] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 301.968260][ T1247] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 301.968515][ T1247] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 301.968770][ T1247] ? nsim_dev_reload_destroy (drivers/net/netdevsim/dev.c:1651) netdevsim 
[ 301.969036][ T1247] devlink_reload (net/devlink/dev.c:474) 
[ 301.969257][ T1247] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 301.969460][ T1247] ? devlink_resources_validate (net/devlink/resource.c:311) 
[ 301.969719][ T1247] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 301.969924][ T1247] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 301.970186][ T1247] ? __nla_parse (lib/nlattr.c:732) 
[ 301.970398][ T1247] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 301.970601][ T1247] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 301.970864][ T1247] ? cap_capable (security/commoncap.c:131) 
[ 301.971073][ T1247] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 301.971281][ T1247] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 301.971490][ T1247] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 301.971703][ T1247] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 301.971948][ T1247] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 301.972210][ T1247] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 301.972478][ T1247] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 301.972681][ T1247] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 301.972884][ T1247] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 301.973100][ T1247] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 301.973319][ T1247] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 301.973475][ T1247] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 301.973679][ T1247] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 301.973886][ T1247] genl_rcv (net/netlink/genetlink.c:1220) 
[ 301.974039][ T1247] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 301.974256][ T1247] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 301.974468][ T1247] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 301.974676][ T1247] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 301.974881][ T1247] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 301.975091][ T1247] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 301.975294][ T1247] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 301.975503][ T1247] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 301.975709][ T1247] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 301.975920][ T1247] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 301.976143][ T1247] ? __sys_recvmsg (net/socket.c:2859) 
[ 301.976344][ T1247] ? __pfx___sys_recvmsg (net/socket.c:2844) 
[ 301.976556][ T1247] ? do_user_addr_fault (./include/linux/mmap_lock.h:218 arch/x86/mm/fault.c:1416) 
[ 301.976763][ T1247] __x64_sys_sendto (net/socket.c:2181) 
[ 301.976964][ T1247] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 301.977227][ T1247] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 301.977432][ T1247] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  301.977682][ T1247] RIP: 0033:0x7f584950ba4a
[ 301.977887][ T1247] 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
[  301.978592][ T1247] RSP: 002b:00007ffc82320068 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[  301.978893][ T1247] RAX: ffffffffffffffda RBX: 000000003e823b00 RCX: 00007f584950ba4a
[  301.979205][ T1247] RDX: 0000000000000038 RSI: 000000003e823b00 RDI: 0000000000000005
[  301.979502][ T1247] RBP: 000000003e823910 R08: 00007f58496af200 R09: 000000000000000c
[  301.979799][ T1247] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[  301.980109][ T1247] R13: 000000003e823910 R14: 0000000000000000 R15: 0000000000000003
| [  302.285307][   T67] ------------[ cut here ]------------
| [ 302.285620][ T67] WARNING: CPU: 3 PID: 67 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [  302.286010][   T67] Modules linked in: netdevsim
| [  302.286709][   T67] Tainted: [W]=WARN
[  302.286855][   T67] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  302.287119][   T67] Workqueue: netns cleanup_net
[ 302.287347][ T67] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 302.287592][ T67] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[  302.288268][   T67] RSP: 0018:ffffc90000487620 EFLAGS: 00010246
[  302.288512][   T67] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  302.288813][   T67] RDX: 0000000000000000 RSI: ffff88800bd72c98 RDI: ffff888005fa0b50
[  302.289115][   T67] RBP: ffffffffb2b23440 R08: 0000000000000000 R09: fffffbfff613d83c
[  302.289399][   T67] R10: ffffffffb09ec1e7 R11: ffff888005fa0040 R12: 0000000000000000
[  302.289685][   T67] R13: ffff88800bd72128 R14: ffff88800bd72008 R15: ffff88800bd72000
[  302.289974][   T67] FS:  0000000000000000(0000) GS:ffff88802f780000(0000) knlGS:0000000000000000
[  302.290311][   T67] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  302.290550][   T67] CR2: 000055e6974c1ac0 CR3: 000000000944c006 CR4: 0000000000772ef0
[  302.290835][   T67] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  302.291142][   T67] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  302.291430][   T67] PKRU: 55555554
[  302.291586][   T67] Call Trace:
[  302.291732][   T67]  <TASK>
[ 302.291833][ T67] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 302.292026][ T67] ? __warn (kernel/panic.c:748) 
[ 302.292197][ T67] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 302.292393][ T67] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 302.292601][ T67] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 302.292754][ T67] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 302.292952][ T67] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 302.293176][ T67] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 302.293385][ T67] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 302.293632][ T67] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 302.293836][ T67] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 302.294037][ T67] register_netdevice (net/core/dev.c:11003) 
[ 302.294253][ T67] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 302.294460][ T67] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 302.294666][ T67] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 302.294910][ T67] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 302.295184][ T67] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 302.295433][ T67] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 302.295680][ T67] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 302.295917][ T67] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 302.296176][ T67] devlink_reload (net/devlink/dev.c:474) 
[ 302.296368][ T67] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 302.296564][ T67] ? devlinks_xa_find_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/devlink/core.c:343) 
[ 302.296764][ T67] devlink_pernet_pre_exit (net/devlink/core.c:288 net/devlink/devl_internal.h:114 net/devlink/core.c:513) 
[ 302.296953][ T67] ? __pfx_devlink_pernet_pre_exit (net/devlink/core.c:496) 
[ 302.297216][ T67] cleanup_net (net/core/net_namespace.c:162 net/core/net_namespace.c:632) 
[ 302.297405][ T67] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 302.297600][ T67] ? __pfx_cleanup_net (net/core/net_namespace.c:594) 
[ 302.297787][ T67] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 302.297974][ T67] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 302.298166][ T67] ? process_one_work (kernel/workqueue.c:3214) 
[ 302.298368][ T67] process_one_work (kernel/workqueue.c:3238) 
[ 302.298568][ T67] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 302.298757][ T67] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 302.298956][ T67] ? assign_work (kernel/workqueue.c:1200) 
[ 302.299181][ T67] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 302.299374][ T67] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 302.299620][ T67] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 302.299818][ T67] kthread (kernel/kthread.c:464) 
[ 302.299963][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 302.300167][ T67] ? __pfx_kthread (kernel/kthread.c:413) 
[ 302.300359][ T67] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 302.300545][ T67] ? __pfx_kthread (kernel/kthread.c:413) 


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