======================================
| 0
| xx__-> [   10.604015][  T228] ------------[ cut here ]------------
| [ 10.604486][ T228] WARNING: CPU: 2 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
| [   10.605075][  T228] Modules linked in: netdevsim
[   10.605746][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.606071][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.606379][ T228] Code: 00 e8 b3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 b8 56 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   10.607198][  T228] RSP: 0018:ffffc90000ae7520 EFLAGS: 00010246
[   10.607513][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.607868][  T228] RDX: 0000000000000000 RSI: ffff88800506ac98 RDI: ffff888009368b78
[   10.608221][  T228] RBP: ffffffffae724440 R08: 0000000000000000 R09: fffffbfff58bd844
[   10.608565][  T228] R10: ffffffffac5ec227 R11: ffff888009368040 R12: 0000000000000000
[   10.608929][  T228] R13: ffff88800506a128 R14: ffff88800506a008 R15: ffff88800506a000
[   10.609285][  T228] FS:  00007ffbd433a740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   10.609710][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.610017][  T228] CR2: 000055f5189e6b58 CR3: 00000000025dc001 CR4: 0000000000772ef0
[   10.610369][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.610719][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.611076][  T228] PKRU: 55555554
[   10.611258][  T228] Call Trace:
[   10.611446][  T228]  <TASK>
[ 10.611589][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.611843][ T228] ? __warn (kernel/panic.c:748) 
[ 10.612028][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.612263][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.612506][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.612693][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.613032][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.613281][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.613525][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 10.613826][ 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) 
[ 10.614065][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.614302][ T228] register_netdevice (net/core/dev.c:11033) 
[ 10.614572][ T228] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 10.614831][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.615082][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.615376][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.615575][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.615888][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.616182][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.616476][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.616718][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.617021][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.617260][ 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)) 
[ 10.617440][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.617683][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.617943][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.618183][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 10.618428][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.618668][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.618980][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.619222][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.619460][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.619698][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.619950][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.620195][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 10.620434][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.620673][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.620932][ 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) 
[ 10.621184][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 10.621427][ T228] device_add (drivers/base/core.c:3672) 
[ 10.621678][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.621928][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.622180][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.622481][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.622802][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.623041][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.623286][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.623527][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.623774][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.623981][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.624227][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.624465][ 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) 
[ 10.624715][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.624973][ T228] ksys_write (fs/read_write.c:731) 
[ 10.625161][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.625393][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.625642][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.625897][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.626211][  T228] RIP: 0033:0x7ffbd447bb77
[ 10.626461][ 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
[   10.627256][  T228] RSP: 002b:00007ffc4dd20718 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.627609][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ffbd447bb77
[   10.627969][  T228] RDX: 0000000000000007 RSI: 000055f5189e5b50 RDI: 0000000000000001
[   10.628320][  T228] RBP: 000055f5189e5b50 R08: 0000000000000003 R09: 0000000000000000
[   10.628670][  T228] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000007
[   10.629030][  T228] R13: 00007ffbd4537760 R14: 0000000000000007 R15: 00007ffbd45329c0
| [   10.682037][  T228] ------------[ cut here ]------------
| [ 10.682358][ 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:10596) 
| [   10.682904][  T228] Modules linked in: netdevsim
| [   10.683552][  T228] Tainted: [W]=WARN
[   10.683730][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.683997][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.684258][ T228] Code: 00 e8 b3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 b8 56 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   10.685044][  T228] RSP: 0018:ffffc90000ae7520 EFLAGS: 00010246
[   10.685302][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.685612][  T228] RDX: 0000000000000000 RSI: ffff88800968ac98 RDI: ffff888009368b78
[   10.685943][  T228] RBP: ffffffffae724440 R08: 0000000000000000 R09: fffffbfff58bd844
[   10.686265][  T228] R10: ffffffffac5ec227 R11: ffff888009368040 R12: 0000000000000000
[   10.686584][  T228] R13: ffff88800968a128 R14: ffff88800968a008 R15: ffff88800968a000
[   10.686905][  T228] FS:  00007ffbd433a740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   10.687273][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.687541][  T228] CR2: 000055f51886e288 CR3: 00000000025dc001 CR4: 0000000000772ef0
[   10.687877][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.688191][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.688505][  T228] PKRU: 55555554
[   10.688669][  T228] Call Trace:
[   10.688839][  T228]  <TASK>
[ 10.688953][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.689170][ T228] ? __warn (kernel/panic.c:748) 
[ 10.689344][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.689565][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.689800][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.689973][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.690195][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.690426][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.690653][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 10.690942][ 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) 
[ 10.691170][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.691383][ T228] register_netdevice (net/core/dev.c:11033) 
[ 10.691609][ T228] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 10.691850][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.692084][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.692359][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.692526][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.692815][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.693087][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.693364][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.693586][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.693875][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.694097][ 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)) 
[ 10.694260][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.694491][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.694709][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.694933][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 10.695145][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.695365][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.695629][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.695845][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.696067][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.696277][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.696486][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.696701][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 10.696925][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.697143][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.697357][ 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) 
[ 10.697581][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 10.697812][ T228] device_add (drivers/base/core.c:3672) 
[ 10.698034][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.698246][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.698479][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.698754][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.699047][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.699260][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.699479][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.699691][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.699921][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.700094][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.700314][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.700526][ 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) 
[ 10.700743][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.700970][ T228] ksys_write (fs/read_write.c:731) 
[ 10.701139][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.701350][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.701588][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.701825][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.702085][  T228] RIP: 0033:0x7ffbd447bb77
[ 10.702308][ T228] Code: Unable to access opcode bytes at 0x7ffbd447bb4d.

Code starting with the faulting instruction
===========================================
[   10.702586][  T228] RSP: 002b:00007ffc4dd20848 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.702915][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ffbd447bb77
[   10.703235][  T228] RDX: 0000000000000007 RSI: 000055f5189e5b50 RDI: 0000000000000001
[   10.703548][  T228] RBP: 000055f5189e5b50 R08: 0000000000000000 R09: 00007ffbd44ee4e0
[   10.703872][  T228] R10: 00007ffbd44ee3e0 R11: 0000000000000246 R12: 0000000000000007
[   10.704182][  T228] R13: 00007ffbd4537760 R14: 0000000000000007 R15: 00007ffbd45329c0
| [   10.781673][  T228] ------------[ cut here ]------------
| [ 10.782026][ 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:10596) 
| [   10.782468][  T228] Modules linked in: netdevsim
| [   10.783268][  T228] Tainted: [W]=WARN
[   10.783437][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.783712][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.784011][ T228] Code: 00 e8 b3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 b8 56 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   10.784809][  T228] RSP: 0018:ffffc90000ae7520 EFLAGS: 00010246
[   10.785091][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.785452][  T228] RDX: 0000000000000000 RSI: ffff88800abb2c98 RDI: ffff888009368b78
[   10.785808][  T228] RBP: ffffffffae724440 R08: 0000000000000000 R09: fffffbfff58bd844
[   10.786141][  T228] R10: ffffffffac5ec227 R11: ffff888009368040 R12: 0000000000000000
[   10.786476][  T228] R13: ffff88800abb2128 R14: ffff88800abb2008 R15: ffff88800abb2000
[   10.786824][  T228] FS:  00007ffbd433a740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   10.787218][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.787632][  T228] CR2: 00007ffbd4339258 CR3: 00000000025dc005 CR4: 0000000000772ef0
[   10.787978][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.788307][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.788634][  T228] PKRU: 55555554
[   10.788811][  T228] Call Trace:
[   10.788985][  T228]  <TASK>
[ 10.789101][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.789331][ T228] ? __warn (kernel/panic.c:748) 
[ 10.789505][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.789729][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.790036][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.790206][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.790430][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.790674][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.790919][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 10.791205][ 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) 
[ 10.791439][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.791679][ T228] register_netdevice (net/core/dev.c:11033) 
[ 10.791916][ T228] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 10.792158][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.792966][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.793270][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.793453][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.793772][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.794103][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.794424][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.794689][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.795010][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.795267][ 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)) 
[ 10.795453][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.795703][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.795968][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.796230][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 10.796477][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.796731][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.797046][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.797300][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.797553][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.797816][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.798075][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.798324][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 10.798563][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.798819][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.799069][ 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) 
[ 10.799318][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 10.799564][ T228] device_add (drivers/base/core.c:3672) 
[ 10.799827][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.800068][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.800326][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.800641][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.800980][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.801231][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.801481][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.801767][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.802038][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.802246][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.802512][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.802762][ 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) 
[ 10.803136][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.803413][ T228] ksys_write (fs/read_write.c:731) 
[ 10.803620][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.803888][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.804148][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.804402][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.804727][  T228] RIP: 0033:0x7ffbd447bb77
[ 10.805010][ T228] Code: Unable to access opcode bytes at 0x7ffbd447bb4d.

Code starting with the faulting instruction
===========================================
[   10.805329][  T228] RSP: 002b:00007ffc4dd20978 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.805726][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007ffbd447bb77
[   10.806110][  T228] RDX: 0000000000000007 RSI: 000055f5189e5b50 RDI: 0000000000000001
[   10.806487][  T228] RBP: 000055f5189e5b50 R08: 0000000000000000 R09: 00007ffbd44ee4e0
[   10.806861][  T228] R10: 00007ffbd44ee3e0 R11: 0000000000000246 R12: 0000000000000007
[   10.807241][  T228] R13: 00007ffbd4537760 R14: 0000000000000007 R15: 00007ffbd45329c0
| [   11.420114][  T271] ------------[ cut here ]------------
| [ 11.421015][ T271] WARNING: CPU: 3 PID: 271 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
| [   11.421753][  T271] Modules linked in: netdevsim
| [   11.423585][  T271] Tainted: [W]=WARN
[   11.423892][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.424371][ T271] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 11.424877][ T271] Code: 00 e8 b3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 b8 56 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   11.426122][  T271] RSP: 0018:ffffc900005971e8 EFLAGS: 00010246
[   11.426564][  T271] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.427107][  T271] RDX: 0000000000000000 RSI: ffff888006022c98 RDI: ffff88800a89d080
[   11.427511][  T271] RBP: ffff8880023e8040 R08: 0000000000000000 R09: fffffbfff58bd844
[   11.428029][  T271] R10: ffffffffac5ec227 R11: ffff88800a89c5c0 R12: 0000000000000000
[   11.428557][  T271] R13: ffff888006022128 R14: ffff888006022008 R15: ffff888006022000
[   11.429079][  T271] FS:  00007f5d5fbf3800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   11.429677][  T271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.430137][  T271] CR2: 00007fe0320f2423 CR3: 000000000a3ee004 CR4: 0000000000772ef0
[   11.430594][  T271] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.431049][  T271] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.431538][  T271] PKRU: 55555554
[   11.431758][  T271] Call Trace:
[   11.431994][  T271]  <TASK>
[ 11.432136][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 11.432433][ T271] ? __warn (kernel/panic.c:748) 
[ 11.432653][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 11.432959][ T271] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.433263][ T271] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.433503][ T271] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.433826][ T271] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.434136][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 11.434429][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 11.434732][ T271] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 11.435148][ T271] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 11.435490][ T271] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.435827][ T271] register_netdevice (net/core/dev.c:11033) 
[ 11.436123][ T271] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 11.436455][ T271] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.436818][ T271] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.437192][ T271] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.437549][ T271] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 11.437936][ T271] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 11.438336][ T271] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 11.438697][ T271] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 11.439143][ T271] devlink_reload (net/devlink/dev.c:474) 
[ 11.439475][ T271] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 11.439840][ T271] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 11.440164][ T271] ? cap_capable (security/commoncap.c:131) 
[ 11.440530][ T271] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 11.440842][ T271] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 11.441198][ T271] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.441664][ T271] ? __nla_parse (lib/nlattr.c:732) 
[ 11.442038][ T271] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 11.442391][ T271] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 11.442873][ T271] ? cap_capable (security/commoncap.c:131) 
[ 11.443201][ T271] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 11.443474][ T271] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 11.443832][ T271] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 11.444203][ T271] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 11.444686][ T271] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.445193][ T271] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 11.445689][ T271] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 11.446118][ T271] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 11.446493][ T271] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 11.446925][ T271] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 11.447297][ T271] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 11.447559][ T271] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 11.447928][ T271] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 11.448275][ T271] genl_rcv (net/netlink/genetlink.c:1220) 
[ 11.448544][ T271] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 11.448926][ T271] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 11.449278][ T271] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 11.449561][ T271] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 11.449879][ T271] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 11.450232][ T271] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 11.450612][ T271] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 11.451000][ T271] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 11.451336][ T271] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 11.451654][ T271] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 11.451954][ T271] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 11.452244][ T271] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 11.452545][ T271] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 11.452934][ T271] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 11.453299][ T271] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 11.453590][ T271] __x64_sys_sendto (net/socket.c:2181) 
[ 11.453893][ T271] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 11.454257][ T271] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.454549][ T271] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.454948][  T271] RIP: 0033:0x7f5d5fdffa4a
[ 11.455361][ T271] Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb b8 0f 1f 00 f3 0f 1e fa 41 89 ca 64 8b 04 25 18 00 00 00 85 c0 75 15 b8 2c 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 7e c3 0f 1f 44 00 00 41 54 48 83 ec 30 44 89
All code
========
   0:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   4:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   b:	eb b8                	jmp    0xffffffffffffffc5
   d:	0f 1f 00             	nopl   (%rax)
  10:	f3 0f 1e fa          	endbr64
  14:	41 89 ca             	mov    %ecx,%r10d
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 15                	jne    0x38
  23:	b8 2c 00 00 00       	mov    $0x2c,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 7e                	ja     0xb0
  32:	c3                   	ret
  33:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
  38:	41 54                	push   %r12
  3a:	48 83 ec 30          	sub    $0x30,%rsp
  3e:	44                   	rex.R
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 7e                	ja     0x86
   8:	c3                   	ret
   9:	0f 1f 44 00 00       	nopl   0x0(%rax,%rax,1)
   e:	41 54                	push   %r12
  10:	48 83 ec 30          	sub    $0x30,%rsp
  14:	44                   	rex.R
  15:	89                   	.byte 0x89
[   11.456372][  T271] RSP: 002b:00007ffffb84fc98 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   11.456850][  T271] RAX: ffffffffffffffda RBX: 000000001b4e9b00 RCX: 00007f5d5fdffa4a
[   11.457285][  T271] RDX: 0000000000000040 RSI: 000000001b4e9b00 RDI: 0000000000000005
[   11.457682][  T271] RBP: 000000001b4e9910 R08: 00007f5d5ffa3200 R09: 000000000000000c
[   11.458114][  T271] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   11.458540][  T271] R13: 000000001b4e9910 R14: 0000000000000000 R15: 0000000000000001
| [   11.666119][  T277] ------------[ cut here ]------------
| [ 11.666543][ T277] WARNING: CPU: 0 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:10596) 
| [   11.667358][  T277] Modules linked in: netdevsim
| [   11.667988][  T277] Tainted: [W]=WARN
[   11.668156][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.668426][ T277] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 11.668709][ T277] Code: 00 e8 b3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 b8 56 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   11.669517][  T277] RSP: 0018:ffffc900005b71e8 EFLAGS: 00010246
[   11.669799][  T277] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.670126][  T277] RDX: 0000000000000000 RSI: ffff8880053aac98 RDI: ffff8880054f8b00
[   11.670444][  T277] RBP: ffff8880023e8040 R08: 0000000000000000 R09: fffffbfff58bd844
[   11.670769][  T277] R10: ffffffffac5ec227 R11: ffff8880054f8040 R12: 0000000000000000
[   11.671108][  T277] R13: ffff8880053aa128 R14: ffff8880053aa008 R15: ffff8880053aa000
[   11.671427][  T277] FS:  00007f0459d5b800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   11.671829][  T277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.672103][  T277] CR2: 00007fe0320745a0 CR3: 0000000008fa8006 CR4: 0000000000772ef0
[   11.672444][  T277] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.672772][  T277] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.673115][  T277] PKRU: 55555554
[   11.673286][  T277] Call Trace:
[   11.673452][  T277]  <TASK>
[ 11.673569][ T277] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 11.673810][ T277] ? __warn (kernel/panic.c:748) 
[ 11.673987][ T277] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 11.674206][ T277] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.674442][ T277] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.674614][ T277] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.674855][ T277] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.675092][ T277] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 11.675321][ T277] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 11.675555][ T277] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 11.675843][ 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) 
[ 11.676075][ T277] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.676305][ T277] register_netdevice (net/core/dev.c:11033) 
[ 11.676530][ T277] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 11.676761][ T277] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.677022][ T277] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.677313][ T277] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.677605][ T277] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 11.677901][ T277] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 11.678196][ T277] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 11.678484][ T277] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 11.678774][ T277] devlink_reload (net/devlink/dev.c:474) 
[ 11.679023][ T277] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 11.679246][ T277] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 11.679473][ T277] ? cap_capable (security/commoncap.c:131) 
[ 11.679695][ 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) 
[ 11.679880][ T277] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 11.680118][ T277] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.680396][ T277] ? __nla_parse (lib/nlattr.c:732) 
[ 11.680630][ T277] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 11.680864][ T277] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 11.681157][ T277] ? cap_capable (security/commoncap.c:131) 
[ 11.681376][ T277] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 11.681622][ T277] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 11.681865][ T277] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 11.682090][ T277] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 11.682367][ T277] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.682639][ T277] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 11.682948][ T277] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 11.683182][ T277] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 11.683406][ T277] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 11.683640][ T277] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 11.683889][ T277] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 11.684059][ T277] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 11.684279][ T277] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 11.684507][ T277] genl_rcv (net/netlink/genetlink.c:1220) 
[ 11.684681][ T277] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 11.684915][ T277] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 11.685145][ T277] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 11.685371][ T277] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 11.685598][ T277] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 11.685820][ T277] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 11.686040][ T277] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 11.686276][ T277] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 11.686503][ T277] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 11.686721][ T277] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 11.686956][ T277] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 11.687185][ T277] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 11.687411][ T277] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 11.687680][ T277] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 11.687911][ T277] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 11.688193][ T277] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 11.688430][ T277] __x64_sys_sendto (net/socket.c:2181) 
[ 11.688652][ T277] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 11.688937][ T277] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.689158][ T277] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.689432][  T277] RIP: 0033:0x7f0459f67a4a
[ 11.689662][ 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
[   11.690441][  T277] RSP: 002b:00007ffd67033eb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   11.690771][  T277] RAX: ffffffffffffffda RBX: 000000002ed3bb00 RCX: 00007f0459f67a4a
[   11.691103][  T277] RDX: 0000000000000040 RSI: 000000002ed3bb00 RDI: 0000000000000005
[   11.691438][  T277] RBP: 000000002ed3b910 R08: 00007f045a10b200 R09: 000000000000000c
[   11.691787][  T277] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   11.692113][  T277] R13: 000000002ed3b910 R14: 0000000000000000 R15: 0000000000000001
| [   11.878874][  T282] ------------[ cut here ]------------
| [ 11.879310][ T282] WARNING: CPU: 0 PID: 282 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
| [   11.879833][  T282] Modules linked in: netdevsim
| [   11.880414][  T282] Tainted: [W]=WARN
[   11.880572][  T282] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.880845][ T282] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 11.881115][ T282] Code: 00 e8 b3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 b8 56 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   11.881884][  T282] RSP: 0018:ffffc900005771e8 EFLAGS: 00010246
[   11.882147][  T282] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.882450][  T282] RDX: 0000000000000000 RSI: ffff888009c22c98 RDI: ffff88800b59adc0
[   11.882750][  T282] RBP: ffff8880023e8040 R08: 0000000000000000 R09: fffffbfff58bd844
[   11.883063][  T282] R10: ffffffffac5ec227 R11: ffff88800b59a300 R12: 0000000000000000
[   11.883369][  T282] R13: ffff888009c22128 R14: ffff888009c22008 R15: ffff888009c22000
[   11.883672][  T282] FS:  00007f0ade2a4800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   11.884034][  T282] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.884289][  T282] CR2: 00007fe0320b0220 CR3: 000000000ba52004 CR4: 0000000000772ef0
[   11.884597][  T282] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.884912][  T282] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.885216][  T282] PKRU: 55555554
[   11.885370][  T282] Call Trace:
[   11.885524][  T282]  <TASK>
[ 11.885629][ T282] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 11.885851][ T282] ? __warn (kernel/panic.c:748) 
[ 11.886011][ T282] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 11.886218][ T282] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.886428][ T282] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.886585][ T282] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.886798][ T282] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.887017][ T282] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 11.887222][ T282] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 11.887438][ T282] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 11.887696][ 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) 
[ 11.887920][ T282] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.888130][ T282] register_netdevice (net/core/dev.c:11033) 
[ 11.888338][ T282] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 11.888551][ T282] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.888790][ T282] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.889055][ T282] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.889325][ T282] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 11.889594][ T282] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 11.889868][ T282] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 11.890126][ T282] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 11.890399][ T282] devlink_reload (net/devlink/dev.c:474) 
[ 11.890613][ T282] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 11.890827][ T282] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 11.891037][ T282] ? cap_capable (security/commoncap.c:131) 
[ 11.891240][ 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) 
[ 11.891406][ T282] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 11.891624][ T282] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.891895][ T282] ? __nla_parse (lib/nlattr.c:732) 
[ 11.892109][ T282] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 11.892320][ T282] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 11.892586][ T282] ? cap_capable (security/commoncap.c:131) 
[ 11.892801][ T282] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 11.893011][ T282] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 11.893221][ T282] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 11.893425][ T282] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 11.893679][ T282] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.893942][ T282] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 11.894209][ T282] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 11.894412][ T282] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 11.894611][ T282] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 11.894834][ T282] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 11.895052][ T282] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 11.895205][ T282] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 11.895412][ T282] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 11.895626][ T282] genl_rcv (net/netlink/genetlink.c:1220) 
[ 11.895790][ T282] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 11.896000][ T282] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 11.896212][ T282] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 11.896425][ T282] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 11.896635][ T282] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 11.896847][ T282] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 11.897055][ T282] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 11.897268][ T282] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 11.897476][ T282] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 11.897677][ T282] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 11.897898][ T282] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 11.898112][ T282] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 11.898327][ T282] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 11.898577][ T282] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 11.898796][ T282] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 11.899054][ T282] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 11.899270][ T282] __x64_sys_sendto (net/socket.c:2181) 
[ 11.899476][ T282] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 11.899731][ T282] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.899949][ T282] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.900206][  T282] RIP: 0033:0x7f0ade4b0a4a
[ 11.900414][ 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
[   11.901135][  T282] RSP: 002b:00007fff8d5a6688 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   11.901441][  T282] RAX: ffffffffffffffda RBX: 0000000039f2fb00 RCX: 00007f0ade4b0a4a
[   11.901752][  T282] RDX: 0000000000000040 RSI: 0000000039f2fb00 RDI: 0000000000000005
[   11.902063][  T282] RBP: 0000000039f2f910 R08: 00007f0ade654200 R09: 000000000000000c
[   11.902369][  T282] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   11.902671][  T282] R13: 0000000039f2f910 R14: 0000000000000000 R15: 0000000000000001
| [   34.134082][   T66] ------------[ cut here ]------------
| [ 34.134456][ T66] WARNING: CPU: 1 PID: 66 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
| [   34.134806][   T66] Modules linked in: netdevsim
| [   34.135317][   T66] Tainted: [W]=WARN
[   34.135447][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.135658][   T66] Workqueue: netns cleanup_net
[ 34.135869][ T66] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 34.136084][ T66] Code: 00 e8 b3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 b8 56 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   34.136663][   T66] RSP: 0018:ffffc90000477620 EFLAGS: 00010246
[   34.136885][   T66] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   34.137132][   T66] RDX: 0000000000000000 RSI: ffff888004d72c98 RDI: ffff888008da50d0
[   34.137378][   T66] RBP: ffffffffae724440 R08: 0000000000000000 R09: fffffbfff58bd844
[   34.137624][   T66] R10: ffffffffac5ec227 R11: ffff888008da45c0 R12: 0000000000000000
[   34.137884][   T66] R13: ffff888004d72128 R14: ffff888004d72008 R15: ffff888004d72000
[   34.138134][   T66] FS:  0000000000000000(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   34.138520][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.138733][   T66] CR2: 00007fe0321c126f CR3: 0000000009770002 CR4: 0000000000772ef0
[   34.138994][   T66] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   34.139243][   T66] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   34.139489][   T66] PKRU: 55555554
[   34.139616][   T66] Call Trace:
[   34.139741][   T66]  <TASK>
[ 34.139838][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 34.140010][ T66] ? __warn (kernel/panic.c:748) 
[ 34.140143][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 34.140313][ T66] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 34.140495][ T66] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 34.140630][ T66] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 34.140806][ T66] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 34.140986][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 34.141163][ T66] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 34.141377][ T66] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 34.141571][ T66] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 34.141745][ T66] register_netdevice (net/core/dev.c:11033) 
[ 34.141935][ T66] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 34.142117][ T66] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 34.142303][ T66] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 34.142529][ T66] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 34.142753][ T66] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 34.142985][ T66] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 34.143206][ T66] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 34.143422][ T66] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 34.143647][ T66] devlink_reload (net/devlink/dev.c:474) 
[ 34.143833][ T66] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 34.144004][ T66] ? devlinks_xa_find_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/devlink/core.c:343) 
[ 34.144179][ T66] devlink_pernet_pre_exit (net/devlink/core.c:288 net/devlink/devl_internal.h:114 net/devlink/core.c:513) 
[ 34.144347][ T66] ? __pfx_devlink_pernet_pre_exit (net/devlink/core.c:496) 
[ 34.144576][ T66] cleanup_net (net/core/net_namespace.c:162 net/core/net_namespace.c:632) 
[ 34.144751][ T66] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 34.144932][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:594) 
[ 34.145101][ T66] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 34.145274][ T66] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 34.145438][ T66] ? process_one_work (kernel/workqueue.c:3214) 
[ 34.145614][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 34.145802][ T66] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 34.145972][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 34.146156][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 34.146330][ T66] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 34.146499][ T66] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 34.146713][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 34.146891][ T66] kthread (kernel/kthread.c:464) 
[ 34.147022][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 34.147195][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 34.147366][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 34.147536][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 34.147706][ T66] ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
| [   34.227446][   T66] ------------[ cut here ]------------
| [ 34.227833][ T66] WARNING: CPU: 1 PID: 66 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
| [   34.228178][   T66] Modules linked in: netdevsim
| [   34.228698][   T66] Tainted: [W]=WARN
[   34.228931][   T66] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   34.229149][   T66] Workqueue: netns cleanup_net
[ 34.229331][ T66] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 34.229665][ T66] Code: 00 e8 b3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 b8 56 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   34.230334][   T66] RSP: 0018:ffffc90000477620 EFLAGS: 00010246
[   34.230557][   T66] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   34.230890][   T66] RDX: 0000000000000000 RSI: ffff888004e02c98 RDI: ffff888008da50d0
[   34.231144][   T66] RBP: ffffffffae724440 R08: 0000000000000000 R09: fffffbfff58bd844
[   34.231405][   T66] R10: ffffffffac5ec227 R11: ffff888008da45c0 R12: 0000000000000000
[   34.231672][   T66] R13: ffff888004e02128 R14: ffff888004e02008 R15: ffff888004e02000
[   34.232005][   T66] FS:  0000000000000000(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   34.232319][   T66] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   34.232533][   T66] CR2: 000055addf630a38 CR3: 0000000010328006 CR4: 0000000000772ef0
[   34.232851][   T66] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   34.233103][   T66] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   34.233361][   T66] PKRU: 55555554
[   34.233491][   T66] Call Trace:
[   34.233619][   T66]  <TASK>
[ 34.233709][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 34.233895][ T66] ? __warn (kernel/panic.c:748) 
[ 34.234031][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 34.234201][ T66] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 34.234378][ T66] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 34.234559][ T66] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 34.234732][ T66] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 34.234929][ T66] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 34.235113][ T66] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 34.235328][ T66] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 34.235506][ T66] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 34.235685][ T66] register_netdevice (net/core/dev.c:11033) 
[ 34.235876][ T66] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 34.236065][ T66] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 34.236252][ T66] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 34.236475][ T66] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 34.236702][ T66] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 34.236934][ T66] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 34.237162][ T66] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 34.237514][ T66] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 34.237744][ T66] devlink_reload (net/devlink/dev.c:474) 
[ 34.237937][ T66] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 34.238200][ T66] ? devlinks_xa_find_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/devlink/core.c:343) 
[ 34.238378][ T66] devlink_pernet_pre_exit (net/devlink/core.c:288 net/devlink/devl_internal.h:114 net/devlink/core.c:513) 
[ 34.238556][ T66] ? __pfx_devlink_pernet_pre_exit (net/devlink/core.c:496) 
[ 34.238791][ T66] cleanup_net (net/core/net_namespace.c:162 net/core/net_namespace.c:632) 
[ 34.239057][ T66] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 34.239230][ T66] ? __pfx_cleanup_net (net/core/net_namespace.c:594) 
[ 34.239399][ T66] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 34.239577][ T66] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 34.239744][ T66] ? process_one_work (kernel/workqueue.c:3214) 
[ 34.239942][ T66] process_one_work (kernel/workqueue.c:3238) 
[ 34.240124][ T66] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 34.240295][ T66] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 34.240477][ T66] ? assign_work (kernel/workqueue.c:1200) 
[ 34.240652][ T66] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 34.240830][ T66] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 34.241044][ T66] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 34.241308][ T66] kthread (kernel/kthread.c:464) 
[ 34.241446][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 34.241623][ T66] ? __pfx_kthread (kernel/kthread.c:413) 
[ 34.241802][ T66] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 34.242062][ T66] ? __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