======================================
| 0
| xx__-> [   10.184149][  T228] ------------[ cut here ]------------
| [ 10.184645][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   10.185227][  T228] Modules linked in: netdevsim
[   10.185867][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.186176][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.186467][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   10.187312][  T228] RSP: 0018:ffffc90000af7520 EFLAGS: 00010246
[   10.187605][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.187970][  T228] RDX: 0000000000000000 RSI: ffff88800bcaac98 RDI: ffff88800a77ae38
[   10.188315][  T228] RBP: ffffffffb9923440 R08: 0000000000000000 R09: fffffbfff6efd83c
[   10.188660][  T228] R10: ffffffffb77ec1e7 R11: ffff88800a77a300 R12: 0000000000000000
[   10.189018][  T228] R13: ffff88800bcaa128 R14: ffff88800bcaa008 R15: ffff88800bcaa000
[   10.189363][  T228] FS:  00007ffa78700740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   10.189766][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.190065][  T228] CR2: 00005581d3804b58 CR3: 00000000023ac003 CR4: 0000000000772ef0
[   10.190417][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.190761][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.191113][  T228] PKRU: 55555554
[   10.191323][  T228] Call Trace:
[   10.191500][  T228]  <TASK>
[ 10.191623][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.191863][ T228] ? __warn (kernel/panic.c:748) 
[ 10.192052][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.192283][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.192520][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.192694][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.192924][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.193180][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.193420][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.193708][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 10.193954][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.194191][ T228] register_netdevice (net/core/dev.c:11003) 
[ 10.194428][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.194667][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.194916][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.195341][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.195520][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.195831][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.196129][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.196422][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.196675][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.196974][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.197207][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 10.197384][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.197624][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.197859][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.198100][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 10.198333][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.198561][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.198843][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.199087][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.199339][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.199568][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.199797][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.200037][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 10.200261][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.200485][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.200720][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 10.200960][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 10.201189][ T228] device_add (drivers/base/core.c:3672) 
[ 10.201424][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.201647][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.201878][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.202179][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.202477][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.202702][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.202937][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.203173][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.203425][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.203602][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.203829][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.204054][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.204291][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.204516][ T228] ksys_write (fs/read_write.c:731) 
[ 10.204684][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.204900][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.205140][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.205365][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.205634][  T228] RIP: 0033:0x7ffa78841b77
[ 10.205871][ T228] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   10.206662][  T228] RSP: 002b:00007ffc5927e158 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.207009][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ffa78841b77
[   10.207374][  T228] RDX: 0000000000000007 RSI: 00005581d3803b50 RDI: 0000000000000001
[   10.207711][  T228] RBP: 00005581d3803b50 R08: 0000000000000003 R09: 0000000000000000
[   10.208062][  T228] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000007
[   10.208392][  T228] R13: 00007ffa788fd760 R14: 0000000000000007 R15: 00007ffa788f89c0
| [   10.291673][  T228] ------------[ cut here ]------------
| [ 10.292100][ T228] WARNING: CPU: 3 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   10.292901][  T228] Modules linked in: netdevsim
| [   10.293984][  T228] Tainted: [W]=WARN
[   10.294289][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.294666][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.294987][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   10.296159][  T228] RSP: 0018:ffffc90000af7520 EFLAGS: 00010246
[   10.296599][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.297093][  T228] RDX: 0000000000000000 RSI: ffff8880025e2c98 RDI: ffff88800a77ae38
[   10.297527][  T228] RBP: ffffffffb9923440 R08: 0000000000000000 R09: fffffbfff6efd83c
[   10.297925][  T228] R10: ffffffffb77ec1e7 R11: ffff88800a77a300 R12: 0000000000000000
[   10.298469][  T228] R13: ffff8880025e2128 R14: ffff8880025e2008 R15: ffff8880025e2000
[   10.299032][  T228] FS:  00007ffa78700740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   10.299602][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.299998][  T228] CR2: 00005581d368c288 CR3: 00000000023ac003 CR4: 0000000000772ef0
[   10.300412][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.300805][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.301334][  T228] PKRU: 55555554
[   10.301599][  T228] Call Trace:
[   10.301865][  T228]  <TASK>
[ 10.302060][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.302395][ T228] ? __warn (kernel/panic.c:748) 
[ 10.302626][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.302969][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.303227][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.303422][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.303731][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.304137][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.304512][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.304973][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 10.305322][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.305672][ T228] register_netdevice (net/core/dev.c:11003) 
[ 10.306014][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.306310][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.306673][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.307148][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.307434][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.307904][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.308367][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.308815][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.309171][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.309562][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.309929][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 10.310221][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.310594][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.311001][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.311323][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 10.311644][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.311987][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.312359][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.312650][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.313022][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.313388][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.313764][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.314165][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 10.314525][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.314876][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.315230][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 10.315505][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 10.315872][ T228] device_add (drivers/base/core.c:3672) 
[ 10.316278][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.316646][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.317074][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.317498][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.317933][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.318251][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.318606][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.318982][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.319376][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.319668][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.320204][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.320532][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.320845][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.321132][ T228] ksys_write (fs/read_write.c:731) 
[ 10.321377][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.321723][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.322146][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.322504][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.322927][  T228] RIP: 0033:0x7ffa78841b77
[ 10.323234][ T228] Code: Unable to access opcode bytes at 0x7ffa78841b4d.

Code starting with the faulting instruction
===========================================
[   10.323604][  T228] RSP: 002b:00007ffc5927e288 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.324009][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ffa78841b77
[   10.324538][  T228] RDX: 0000000000000007 RSI: 00005581d3803b50 RDI: 0000000000000001
[   10.325077][  T228] RBP: 00005581d3803b50 R08: 0000000000000000 R09: 00007ffa788b44e0
[   10.325581][  T228] R10: 00007ffa788b43e0 R11: 0000000000000246 R12: 0000000000000007
[   10.326090][  T228] R13: 00007ffa788fd760 R14: 0000000000000007 R15: 00007ffa788f89c0
| [   10.426264][  T228] ------------[ cut here ]------------
| [ 10.426588][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   10.427047][  T228] Modules linked in: netdevsim
| [   10.427695][  T228] Tainted: [W]=WARN
[   10.427857][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.428216][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.428495][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   10.429234][  T228] RSP: 0000:ffffc90000af7520 EFLAGS: 00010246
[   10.429503][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.429817][  T228] RDX: 0000000000000000 RSI: ffff888001fbac98 RDI: ffff88800a77ae38
[   10.430142][  T228] RBP: ffffffffb9923440 R08: 0000000000000000 R09: fffffbfff6efd83c
[   10.430461][  T228] R10: ffffffffb77ec1e7 R11: ffff88800a77a300 R12: 0000000000000000
[   10.430776][  T228] R13: ffff888001fba128 R14: ffff888001fba008 R15: ffff888001fba000
[   10.431098][  T228] FS:  00007ffa78700740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   10.431482][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.431743][  T228] CR2: 00007fbbba012f10 CR3: 00000000023ac001 CR4: 0000000000772ef0
[   10.432059][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.432373][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.432678][  T228] PKRU: 55555554
[   10.432841][  T228] Call Trace:
[   10.433015][  T228]  <TASK>
[ 10.433127][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.433348][ T228] ? __warn (kernel/panic.c:748) 
[ 10.433514][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.433746][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.433977][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.434146][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.434366][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.434598][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.434819][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.435095][ T228] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 10.435316][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.435530][ T228] register_netdevice (net/core/dev.c:11003) 
[ 10.435748][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.435988][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.436219][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.436487][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.436658][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.436929][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.437202][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.437471][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.437710][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.437999][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.438228][ T228] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 10.438397][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.438625][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.438853][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.439090][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 10.439313][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.439539][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.439808][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.440037][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.440256][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.440480][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.440702][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.440937][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 10.441163][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.441374][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.441667][ T228] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 10.441882][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 10.442108][ T228] device_add (drivers/base/core.c:3672) 
[ 10.442325][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.442536][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.442754][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.443032][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.443306][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.443512][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.443730][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.443933][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.444158][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.444327][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.444540][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.444745][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.444971][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.445185][ T228] ksys_write (fs/read_write.c:731) 
[ 10.445349][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.445554][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.445796][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.446028][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.446306][  T228] RIP: 0033:0x7ffa78841b77
[ 10.446541][ T228] Code: Unable to access opcode bytes at 0x7ffa78841b4d.

Code starting with the faulting instruction
===========================================
[   10.446833][  T228] RSP: 002b:00007ffc5927e3b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.447178][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ffa78841b77
[   10.447512][  T228] RDX: 0000000000000007 RSI: 00005581d3803b50 RDI: 0000000000000001
[   10.447841][  T228] RBP: 00005581d3803b50 R08: 0000000000000000 R09: 00007ffa788b44e0
[   10.448174][  T228] R10: 00007ffa788b43e0 R11: 0000000000000246 R12: 0000000000000007
[   10.448503][  T228] R13: 00007ffa788fd760 R14: 0000000000000007 R15: 00007ffa788f89c0
| [   10.874862][  T272] ------------[ cut here ]------------
| [ 10.875770][ T272] WARNING: CPU: 2 PID: 272 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) 
| [   10.876243][  T272] Modules linked in: netdevsim
| [   10.876904][  T272] Tainted: [W]=WARN
[   10.877216][  T272] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.877513][ T272] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.877804][ T272] 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
[   10.878594][  T272] RSP: 0018:ffffc900005471e8 EFLAGS: 00010246
[   10.878889][  T272] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.879242][  T272] RDX: 0000000000000000 RSI: ffff88800974ac98 RDI: ffff888009875080
[   10.879583][  T272] RBP: ffff888002aa0040 R08: 0000000000000000 R09: fffffbfff6efd83c
[   10.879924][  T272] R10: ffffffffb77ec1e7 R11: ffff8880098745c0 R12: 0000000000000000
[   10.880271][  T272] R13: ffff88800974a128 R14: ffff88800974a008 R15: ffff88800974a000
[   10.880620][  T272] FS:  00007f28f51fe800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   10.881025][  T272] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.881313][  T272] CR2: 00007f28f533d440 CR3: 0000000004dac003 CR4: 0000000000772ef0
[   10.881653][  T272] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.882001][  T272] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.882338][  T272] PKRU: 55555554
[   10.882517][  T272] Call Trace:
[   10.882696][  T272]  <TASK>
[ 10.882822][ T272] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.883067][ T272] ? __warn (kernel/panic.c:748) 
[ 10.883253][ T272] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.883492][ T272] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.883731][ T272] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.883910][ T272] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.884154][ T272] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.884424][ T272] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.884668][ T272] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 10.884909][ T272] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.885215][ T272] ? _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) 
[ 10.885455][ T272] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.885698][ T272] register_netdevice (net/core/dev.c:11003) 
[ 10.885932][ T272] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.886191][ T272] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.886448][ T272] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.886757][ T272] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.887072][ T272] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 10.887375][ T272] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 10.887676][ T272] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 10.887981][ T272] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 10.888287][ T272] devlink_reload (net/devlink/dev.c:474) 
[ 10.888535][ T272] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 10.888767][ T272] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 10.889018][ T272] ? cap_capable (security/commoncap.c:131) 
[ 10.889253][ T272] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 10.889446][ T272] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 10.889684][ T272] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.889990][ T272] ? __nla_parse (lib/nlattr.c:732) 
[ 10.890235][ T272] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 10.890480][ T272] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 10.890782][ T272] ? cap_capable (security/commoncap.c:131) 
[ 10.891029][ T272] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 10.891274][ T272] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 10.891515][ T272] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 10.891751][ T272] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 10.892045][ T272] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.892328][ T272] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 10.892632][ T272] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 10.892869][ T272] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 10.893114][ T272] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 10.893350][ T272] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 10.893597][ T272] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 10.893785][ T272] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 10.894030][ T272] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 10.894272][ T272] genl_rcv (net/netlink/genetlink.c:1220) 
[ 10.894456][ T272] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 10.894699][ T272] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 10.894936][ T272] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 10.895195][ T272] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 10.895437][ T272] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 10.895673][ T272] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 10.895912][ T272] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 10.896166][ T272] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 10.896406][ T272] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 10.896634][ T272] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.896931][ T272] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 10.897175][ T272] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.897401][ T272] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 10.897667][ T272] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.897888][ T272] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 10.898170][ T272] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 10.898399][ T272] __x64_sys_sendto (net/socket.c:2181) 
[ 10.898618][ T272] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.898885][ T272] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.899117][ T272] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.899385][  T272] RIP: 0033:0x7f28f540aa4a
[ 10.899607][ T272] 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
[   10.900414][  T272] RSP: 002b:00007fffcc8d73b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   10.900763][  T272] RAX: ffffffffffffffda RBX: 0000000015497b00 RCX: 00007f28f540aa4a
[   10.901111][  T272] RDX: 0000000000000040 RSI: 0000000015497b00 RDI: 0000000000000005
[   10.901444][  T272] RBP: 0000000015497910 R08: 00007f28f55ae200 R09: 000000000000000c
[   10.901787][  T272] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   10.902138][  T272] R13: 0000000015497910 R14: 0000000000000000 R15: 0000000000000001
| [   11.087790][  T277] ------------[ cut here ]------------
| [ 11.088348][ T277] WARNING: CPU: 2 PID: 277 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) 
| [   11.088782][  T277] Modules linked in: netdevsim
| [   11.089400][  T277] Tainted: [W]=WARN
[   11.089568][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.089836][ T277] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.090126][ T277] 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
[   11.090867][  T277] RSP: 0018:ffffc900005771e8 EFLAGS: 00010246
[   11.091149][  T277] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.091461][  T277] RDX: 0000000000000000 RSI: ffff88800248ac98 RDI: ffff8880099b5080
[   11.091771][  T277] RBP: ffff888002aa0040 R08: 0000000000000000 R09: fffffbfff6efd83c
[   11.092100][  T277] R10: ffffffffb77ec1e7 R11: ffff8880099b45c0 R12: 0000000000000000
[   11.092409][  T277] R13: ffff88800248a128 R14: ffff88800248a008 R15: ffff88800248a000
[   11.092720][  T277] FS:  00007f8d8f9ae800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   11.093090][  T277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.093365][  T277] CR2: 00007f8d8faed440 CR3: 00000000052b4006 CR4: 0000000000772ef0
[   11.093682][  T277] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.094009][  T277] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.094322][  T277] PKRU: 55555554
[   11.094489][  T277] Call Trace:
[   11.094656][  T277]  <TASK>
[ 11.094779][ T277] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.095012][ T277] ? __warn (kernel/panic.c:748) 
[ 11.095184][ T277] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.095405][ T277] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.095629][ T277] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.095799][ T277] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.096032][ T277] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.096262][ T277] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.096485][ T277] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 11.096715][ T277] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 11.096998][ T277] ? _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) 
[ 11.097220][ T277] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.097448][ T277] register_netdevice (net/core/dev.c:11003) 
[ 11.097670][ T277] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 11.097903][ T277] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.098148][ T277] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.098425][ T277] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.098706][ T277] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 11.099002][ T277] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 11.099280][ T277] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 11.099564][ T277] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 11.099842][ T277] devlink_reload (net/devlink/dev.c:474) 
[ 11.100081][ T277] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 11.100295][ T277] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 11.100518][ T277] ? cap_capable (security/commoncap.c:131) 
[ 11.100732][ T277] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 11.100916][ T277] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 11.101150][ T277] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.101425][ T277] ? __nla_parse (lib/nlattr.c:732) 
[ 11.101651][ T277] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 11.101873][ T277] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 11.102165][ T277] ? cap_capable (security/commoncap.c:131) 
[ 11.102382][ T277] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 11.102611][ T277] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 11.102829][ T277] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 11.103063][ T277] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 11.103325][ T277] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.103588][ T277] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 11.103867][ T277] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 11.104124][ T277] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 11.104350][ T277] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 11.104571][ T277] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 11.104800][ T277] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 11.104984][ T277] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 11.105202][ T277] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 11.105435][ T277] genl_rcv (net/netlink/genetlink.c:1220) 
[ 11.105601][ T277] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 11.105831][ T277] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 11.106062][ T277] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 11.106290][ T277] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 11.106513][ T277] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 11.106739][ T277] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 11.106969][ T277] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 11.107213][ T277] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 11.107491][ T277] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 11.107711][ T277] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 11.107929][ T277] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 11.108172][ T277] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 11.108397][ T277] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 11.108659][ T277] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 11.108878][ T277] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 11.109167][ T277] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 11.109399][ T277] __x64_sys_sendto (net/socket.c:2181) 
[ 11.109618][ T277] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 11.109883][ T277] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.110111][ T277] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.110377][  T277] RIP: 0033:0x7f8d8fbbaa4a
[ 11.110600][ T277] 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
[   11.111332][  T277] RSP: 002b:00007ffeab915ce8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   11.111652][  T277] RAX: ffffffffffffffda RBX: 00000000342ddb00 RCX: 00007f8d8fbbaa4a
[   11.111974][  T277] RDX: 0000000000000040 RSI: 00000000342ddb00 RDI: 0000000000000005
[   11.112290][  T277] RBP: 00000000342dd910 R08: 00007f8d8fd5e200 R09: 000000000000000c
[   11.112602][  T277] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   11.112914][  T277] R13: 00000000342dd910 R14: 0000000000000000 R15: 0000000000000001
| [   11.299989][  T282] ------------[ cut here ]------------
| [ 11.300490][ T282] WARNING: CPU: 3 PID: 282 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   11.300885][  T282] Modules linked in: netdevsim
| [   11.301458][  T282] Tainted: [W]=WARN
[   11.301615][  T282] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.301858][ T282] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.302119][ T282] 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
[   11.302817][  T282] RSP: 0018:ffffc900005971e8 EFLAGS: 00010246
[   11.303074][  T282] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.303360][  T282] RDX: 0000000000000000 RSI: ffff88800be0ac98 RDI: ffff88800a212dc0
[   11.303645][  T282] RBP: ffff888002aa0040 R08: 0000000000000000 R09: fffffbfff6efd83c
[   11.303940][  T282] R10: ffffffffb77ec1e7 R11: ffff88800a212300 R12: 0000000000000000
[   11.304239][  T282] R13: ffff88800be0a128 R14: ffff88800be0a008 R15: ffff88800be0a000
[   11.304531][  T282] FS:  00007f64012b1800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   11.304863][  T282] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.305113][  T282] CR2: 00007f04c126c5a0 CR3: 000000000bb8c005 CR4: 0000000000772ef0
[   11.305409][  T282] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.305693][  T282] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.305992][  T282] PKRU: 55555554
[   11.306141][  T282] Call Trace:
[   11.306289][  T282]  <TASK>
[ 11.306389][ T282] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.306590][ T282] ? __warn (kernel/panic.c:748) 
[ 11.306751][ T282] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.306958][ T282] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.307162][ T282] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.307310][ T282] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.307504][ T282] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.307710][ T282] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 11.307910][ T282] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 11.308121][ T282] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 11.308375][ T282] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 11.308577][ T282] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.308779][ T282] register_netdevice (net/core/dev.c:11003) 
[ 11.308991][ T282] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 11.309194][ T282] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.309414][ T282] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.309667][ T282] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.309923][ T282] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 11.310194][ T282] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 11.310450][ T282] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 11.310702][ T282] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 11.310968][ T282] devlink_reload (net/devlink/dev.c:474) 
[ 11.311167][ T282] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 11.311357][ T282] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 11.311556][ T282] ? cap_capable (security/commoncap.c:131) 
[ 11.311747][ T282] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 11.311902][ T282] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 11.312117][ T282] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.312366][ T282] ? __nla_parse (lib/nlattr.c:732) 
[ 11.312572][ T282] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 11.312773][ T282] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 11.313036][ T282] ? cap_capable (security/commoncap.c:131) 
[ 11.313227][ T282] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 11.313428][ T282] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 11.313628][ T282] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 11.313821][ T282] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 11.314074][ T282] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.314315][ T282] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 11.314564][ T282] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 11.314759][ T282] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 11.314968][ T282] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 11.315161][ T282] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 11.315368][ T282] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 11.315514][ T282] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 11.315713][ T282] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 11.315913][ T282] genl_rcv (net/netlink/genetlink.c:1220) 
[ 11.316071][ T282] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 11.316267][ T282] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 11.316482][ T282] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 11.316719][ T282] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 11.316920][ T282] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 11.317126][ T282] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 11.317320][ T282] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 11.317521][ T282] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 11.317717][ T282] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 11.317907][ T282] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 11.318120][ T282] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 11.318328][ T282] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 11.318526][ T282] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 11.318767][ T282] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 11.319024][ T282] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 11.319225][ T282] __x64_sys_sendto (net/socket.c:2181) 
[ 11.319424][ T282] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 11.319665][ T282] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.319863][ T282] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.320113][  T282] RIP: 0033:0x7f64014bda4a
[ 11.320314][ T282] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
All code
========
   0:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   4:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   b:	eb b8                	jmp    0xffffffffffffffc5
   d:	0f 1f 00             	nopl   (%rax)
  10:	f3 0f 1e fa          	endbr64
  14:	41 89 ca             	mov    %ecx,%r10d
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 15                	jne    0x38
  23:	b8 2c 00 00 00       	mov    $0x2c,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 7e                	ja     0xb0
  32:	c3                   	ret
  33:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  38:	41 54                	push   %r12
  3a:	48 83 ec 30          	sub    $0x30,%rsp
  3e:	44                   	rex.R
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 7e                	ja     0x86
   8:	c3                   	ret
   9:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   e:	41 54                	push   %r12
  10:	48 83 ec 30          	sub    $0x30,%rsp
  14:	44                   	rex.R
  15:	89                   	.byte 0x89
[   11.321000][  T282] RSP: 002b:00007ffdbc2462c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   11.321289][  T282] RAX: ffffffffffffffda RBX: 00000000262f5b00 RCX: 00007f64014bda4a
[   11.321575][  T282] RDX: 0000000000000040 RSI: 00000000262f5b00 RDI: 0000000000000005
[   11.321879][  T282] RBP: 00000000262f5910 R08: 00007f6401661200 R09: 000000000000000c
[   11.322185][  T282] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   11.322467][  T282] R13: 00000000262f5910 R14: 0000000000000000 R15: 0000000000000001
| [   34.546722][   T65] ------------[ cut here ]------------
| [ 34.550883][ T65] WARNING: CPU: 0 PID: 65 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) 
| [   34.551470][   T65] Modules linked in: netdevsim
| [   34.552256][   T65] Tainted: [W]=WARN
[   34.552458][   T65] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.552777][   T65] Workqueue: netns cleanup_net
[ 34.553175][ T65] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 34.553520][ T65] 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
[   34.554454][   T65] RSP: 0000:ffffc90000467620 EFLAGS: 00010246
[   34.554792][   T65] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   34.555203][   T65] RDX: 0000000000000000 RSI: ffff88800529ac98 RDI: ffff888005572e10
[   34.555583][   T65] RBP: ffffffffb9923440 R08: 0000000000000000 R09: fffffbfff6efd83c
[   34.555981][   T65] R10: ffffffffb77ec1e7 R11: ffff888005572300 R12: 0000000000000000
[   34.556380][   T65] R13: ffff88800529a128 R14: ffff88800529a008 R15: ffff88800529a000
[   34.556805][   T65] FS:  0000000000000000(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   34.557324][   T65] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.557667][   T65] CR2: 00007f64df25d178 CR3: 0000000011d28004 CR4: 0000000000772ef0
[   34.558752][   T65] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   34.559190][   T65] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   34.559622][   T65] PKRU: 55555554
[   34.559824][   T65] Call Trace:
[   34.560053][   T65]  <TASK>
[ 34.560195][ T65] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 34.560476][ T65] ? __warn (kernel/panic.c:748) 
[ 34.560688][ T65] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 34.560998][ T65] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 34.561286][ T65] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 34.561494][ T65] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 34.561771][ T65] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 34.562079][ T65] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 34.562369][ T65] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 34.562725][ T65] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 34.563020][ T65] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 34.563314][ T65] register_netdevice (net/core/dev.c:11003) 
[ 34.563595][ T65] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 34.563870][ T65] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 34.564193][ T65] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 34.564560][ T65] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 34.564915][ T65] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 34.565290][ T65] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 34.565647][ T65] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 34.566008][ T65] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 34.566371][ T65] devlink_reload (net/devlink/dev.c:474) 
[ 34.566661][ T65] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 34.566926][ T65] ? devlinks_xa_find_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/devlink/core.c:343) 
[ 34.567220][ T65] devlink_pernet_pre_exit (net/devlink/core.c:288 net/devlink/devl_internal.h:114 net/devlink/core.c:513) 
[ 34.567483][ T65] ? __pfx_devlink_pernet_pre_exit (net/devlink/core.c:496) 
[ 34.567840][ T65] cleanup_net (net/core/net_namespace.c:162 net/core/net_namespace.c:632) 
[ 34.568134][ T65] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 34.568411][ T65] ? __pfx_cleanup_net (net/core/net_namespace.c:594) 
[ 34.568690][ T65] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 34.568982][ T65] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 34.569247][ T65] ? process_one_work (kernel/workqueue.c:3214) 
[ 34.569552][ T65] process_one_work (kernel/workqueue.c:3238) 
[ 34.569867][ T65] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 34.570179][ T65] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 34.570493][ T65] ? assign_work (kernel/workqueue.c:1200) 
[ 34.570759][ T65] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 34.570979][ T65] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 34.571262][ T65] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 34.571452][ T65] kthread (kernel/kthread.c:464) 
[ 34.571595][ T65] ? __pfx_kthread (kernel/kthread.c:413) 
[ 34.571786][ T65] ? __pfx_kthread (kernel/kthread.c:413) 
[ 34.571985][ T65] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 34.572196][ T65] ? __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