======================================
| 0
| xx__-> [    9.892029][  T229] ------------[ cut here ]------------
| [ 9.892453][ T229] WARNING: CPU: 3 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [    9.892965][  T229] Modules linked in: netdevsim
[    9.893593][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.893868][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.894156][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[    9.894925][  T229] RSP: 0018:ffffc90000b37520 EFLAGS: 00010246
[    9.895214][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.895542][  T229] RDX: 0000000000000000 RSI: ffff88800bd32c98 RDI: ffff88800a832e38
[    9.895871][  T229] RBP: ffffffffbf523440 R08: 0000000000000000 R09: fffffbfff7a7d83c
[    9.896206][  T229] R10: ffffffffbd3ec1e7 R11: ffff88800a832300 R12: 0000000000000000
[    9.896533][  T229] R13: ffff88800bd32128 R14: ffff88800bd32008 R15: ffff88800bd32000
[    9.896857][  T229] FS:  00007faa29910740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[    9.897238][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.897515][  T229] CR2: 0000559eb7ef3b58 CR3: 0000000005fea003 CR4: 0000000000772ef0
[    9.897845][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.898265][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.898592][  T229] PKRU: 55555554
[    9.898760][  T229] Call Trace:
[    9.898924][  T229]  <TASK>
[ 9.899041][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.899276][ T229] ? __warn (kernel/panic.c:748) 
[ 9.899442][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.899653][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.899876][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.900051][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.900276][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.900514][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.900747][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.901023][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 9.901254][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.901473][ T229] register_netdevice (net/core/dev.c:11003) 
[ 9.901697][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.901919][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.902156][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.902434][ T229] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.902598][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.902870][ T229] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.903155][ T229] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.903434][ T229] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.903659][ T229] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.903933][ T229] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.904158][ T229] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 9.904322][ T229] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.904552][ T229] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.904780][ T229] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.904996][ T229] driver_probe_device (drivers/base/dd.c:830) 
[ 9.905226][ T229] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.905452][ T229] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.905716][ T229] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.905934][ T229] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.906161][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.906379][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.906591][ T229] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.906812][ T229] __device_attach (drivers/base/dd.c:1030) 
[ 9.907027][ T229] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.907247][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.907464][ T229] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 9.907692][ T229] bus_probe_device (drivers/base/bus.c:537) 
[ 9.907913][ T229] device_add (drivers/base/core.c:3672) 
[ 9.908142][ T229] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.908355][ T229] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.908585][ T229] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.908859][ T229] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.909151][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.909370][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.909589][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.909801][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.910024][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.910211][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.910435][ T229] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.910657][ T229] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.910887][ T229] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.911123][ T229] ksys_write (fs/read_write.c:731) 
[ 9.911289][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.911500][ T229] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.911729][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.911952][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.912233][  T229] RIP: 0033:0x7faa29a51b77
[ 9.912459][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[    9.913222][  T229] RSP: 002b:00007ffc22fda0f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.913551][  T229] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007faa29a51b77
[    9.913864][  T229] RDX: 0000000000000007 RSI: 0000559eb7ef2b50 RDI: 0000000000000001
[    9.914191][  T229] RBP: 0000559eb7ef2b50 R08: 0000000000000003 R09: 0000000000000000
[    9.914496][  T229] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000007
[    9.914813][  T229] R13: 00007faa29b0d760 R14: 0000000000000007 R15: 00007faa29b089c0
| [    9.971334][  T229] ------------[ cut here ]------------
| [ 9.971658][ T229] WARNING: CPU: 3 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [    9.972096][  T229] Modules linked in: netdevsim
| [    9.972804][  T229] Tainted: [W]=WARN
[    9.972978][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.973255][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.973520][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[    9.974257][  T229] RSP: 0018:ffffc90000b37520 EFLAGS: 00010246
[    9.974519][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.974822][  T229] RDX: 0000000000000000 RSI: ffff888004f2ac98 RDI: ffff88800a832e38
[    9.975141][  T229] RBP: ffffffffbf523440 R08: 0000000000000000 R09: fffffbfff7a7d83c
[    9.975451][  T229] R10: ffffffffbd3ec1e7 R11: ffff88800a832300 R12: 0000000000000000
[    9.975768][  T229] R13: ffff888004f2a128 R14: ffff888004f2a008 R15: ffff888004f2a000
[    9.976093][  T229] FS:  00007faa29910740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[    9.976454][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.976719][  T229] CR2: 0000559eb7d7b288 CR3: 0000000005fea004 CR4: 0000000000772ef0
[    9.977031][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.977357][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.977671][  T229] PKRU: 55555554
[    9.977831][  T229] Call Trace:
[    9.977989][  T229]  <TASK>
[ 9.978151][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.978371][ T229] ? __warn (kernel/panic.c:748) 
[ 9.978538][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.978754][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.978983][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.979159][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.979370][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.979594][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.979810][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.980257][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 9.980492][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.980730][ T229] register_netdevice (net/core/dev.c:11003) 
[ 9.980953][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.981194][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.981426][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.981703][ T229] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.981871][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.982173][ T229] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.982451][ T229] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.982731][ T229] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.982960][ T229] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.983239][ T229] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.983461][ T229] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 9.983626][ T229] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.983848][ T229] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.984089][ T229] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.984302][ T229] driver_probe_device (drivers/base/dd.c:830) 
[ 9.984514][ T229] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.984726][ T229] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.984980][ T229] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.985205][ T229] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.985420][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.985631][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.985833][ T229] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.986047][ T229] __device_attach (drivers/base/dd.c:1030) 
[ 9.986262][ T229] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.986520][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.986737][ T229] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 9.986960][ T229] bus_probe_device (drivers/base/bus.c:537) 
[ 9.987191][ T229] device_add (drivers/base/core.c:3672) 
[ 9.987413][ T229] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.987629][ T229] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.987854][ T229] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.988339][ T229] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.988626][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.988841][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.989077][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.989287][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.989509][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.989674][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.989895][ T229] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.990119][ T229] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.990348][ T229] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.990580][ T229] ksys_write (fs/read_write.c:731) 
[ 9.990746][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.990960][ T229] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.991190][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.991405][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.991677][  T229] RIP: 0033:0x7faa29a51b77
[ 9.991901][ T229] Code: Unable to access opcode bytes at 0x7faa29a51b4d.

Code starting with the faulting instruction
===========================================
[    9.992185][  T229] RSP: 002b:00007ffc22fda228 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.992507][  T229] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007faa29a51b77
[    9.992824][  T229] RDX: 0000000000000007 RSI: 0000559eb7ef2b50 RDI: 0000000000000001
[    9.993151][  T229] RBP: 0000559eb7ef2b50 R08: 0000000000000000 R09: 00007faa29ac44e0
[    9.993467][  T229] R10: 00007faa29ac43e0 R11: 0000000000000246 R12: 0000000000000007
[    9.993784][  T229] R13: 00007faa29b0d760 R14: 0000000000000007 R15: 00007faa29b089c0
| [   10.072121][  T229] ------------[ cut here ]------------
| [ 10.072445][ T229] WARNING: CPU: 3 PID: 229 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   10.072956][  T229] Modules linked in: netdevsim
| [   10.073661][  T229] Tainted: [W]=WARN
[   10.073818][  T229] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.074108][ T229] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.074373][ T229] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   10.075106][  T229] RSP: 0018:ffffc90000b37520 EFLAGS: 00010246
[   10.075378][  T229] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.075694][  T229] RDX: 0000000000000000 RSI: ffff888009aeac98 RDI: ffff88800a832e38
[   10.076011][  T229] RBP: ffffffffbf523440 R08: 0000000000000000 R09: fffffbfff7a7d83c
[   10.076339][  T229] R10: ffffffffbd3ec1e7 R11: ffff88800a832300 R12: 0000000000000000
[   10.076666][  T229] R13: ffff888009aea128 R14: ffff888009aea008 R15: ffff888009aea000
[   10.076987][  T229] FS:  00007faa29910740(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[   10.077374][  T229] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.077634][  T229] CR2: 00005606e42cb810 CR3: 0000000005fea004 CR4: 0000000000772ef0
[   10.077938][  T229] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.078263][  T229] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.078574][  T229] PKRU: 55555554
[   10.078728][  T229] Call Trace:
[   10.078884][  T229]  <TASK>
[ 10.078992][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.079208][ T229] ? __warn (kernel/panic.c:748) 
[ 10.079368][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.079576][ T229] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.079787][ T229] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.079950][ T229] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.080168][ T229] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.080386][ T229] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.080614][ T229] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.080870][ T229] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 10.081094][ T229] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.081302][ T229] register_netdevice (net/core/dev.c:11003) 
[ 10.081517][ T229] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.081732][ T229] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.081953][ T229] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.082226][ T229] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.082385][ T229] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.082656][ T229] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.082924][ T229] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.083199][ T229] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.083420][ T229] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.083680][ T229] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.083891][ T229] ? kernfs_put (./arch/x86/include/asm/atomic.h:67 (discriminator 1) ./include/linux/atomic/atomic-arch-fallback.h:2278 (discriminator 1) ./include/linux/atomic/atomic-instrumented.h:1384 (discriminator 1) fs/kernfs/dir.c:557 (discriminator 1)) 
[ 10.084047][ T229] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.084285][ T229] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.084503][ T229] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.084709][ T229] driver_probe_device (drivers/base/dd.c:830) 
[ 10.084925][ T229] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.085155][ T229] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.085417][ T229] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.085633][ T229] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.085845][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.086075][ T229] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.086289][ T229] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.086501][ T229] __device_attach (drivers/base/dd.c:1030) 
[ 10.086704][ T229] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.086907][ T229] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.087124][ T229] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 10.087337][ T229] bus_probe_device (drivers/base/bus.c:537) 
[ 10.087547][ T229] device_add (drivers/base/core.c:3672) 
[ 10.087755][ T229] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.087957][ T229] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.088186][ T229] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.088448][ T229] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.088715][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.088920][ T229] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.089155][ T229] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.089365][ T229] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.089588][ T229] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.089760][ T229] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.089980][ T229] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.090203][ T229] ? do_user_addr_fault (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.090426][ T229] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.090662][ T229] ksys_write (fs/read_write.c:731) 
[ 10.090822][ T229] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.091034][ T229] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.091268][ T229] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.091492][ T229] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.091754][  T229] RIP: 0033:0x7faa29a51b77
[ 10.091974][ T229] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 01 00 00 00       	mov    $0x1,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[   10.092724][  T229] RSP: 002b:00007ffc22fda358 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.093044][  T229] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007faa29a51b77
[   10.093370][  T229] RDX: 0000000000000007 RSI: 0000559eb7ef2b50 RDI: 0000000000000001
[   10.093693][  T229] RBP: 0000559eb7ef2b50 R08: 0000000000000000 R09: 00007faa29ac44e0
[   10.094007][  T229] R10: 00007faa29ac43e0 R11: 0000000000000246 R12: 0000000000000007
[   10.094331][  T229] R13: 00007faa29b0d760 R14: 0000000000000007 R15: 00007faa29b089c0
| [   10.460385][  T272] ------------[ cut here ]------------
| [ 10.460694][ T272] WARNING: CPU: 3 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) 
| [   10.461186][  T272] Modules linked in: netdevsim
| [   10.461731][  T272] Tainted: [W]=WARN
[   10.461887][  T272] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.462133][ T272] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.462372][ 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
[   10.463027][  T272] RSP: 0018:ffffc900005971e8 EFLAGS: 00010246
[   10.463290][  T272] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.463586][  T272] RDX: 0000000000000000 RSI: ffff88800e432c98 RDI: ffff88800bd9adc0
[   10.463873][  T272] RBP: ffff88800bd50040 R08: 0000000000000000 R09: fffffbfff7a7d83c
[   10.464172][  T272] R10: ffffffffbd3ec1e7 R11: ffff88800bd9a300 R12: 0000000000000000
[   10.464458][  T272] R13: ffff88800e432128 R14: ffff88800e432008 R15: ffff88800e432000
[   10.464746][  T272] FS:  00007f1e239da800(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[   10.465098][  T272] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.465348][  T272] CR2: 00005606e42beb58 CR3: 0000000004ffa006 CR4: 0000000000772ef0
[   10.465639][  T272] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.465922][  T272] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.466216][  T272] PKRU: 55555554
[   10.466361][  T272] Call Trace:
[   10.466507][  T272]  <TASK>
[ 10.466609][ T272] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.466802][ T272] ? __warn (kernel/panic.c:748) 
[ 10.466948][ T272] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.467148][ T272] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.467344][ T272] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.467487][ T272] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.467678][ T272] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.467887][ T272] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.468088][ T272] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 10.468285][ T272] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.468525][ 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) 
[ 10.468725][ T272] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.468926][ T272] register_netdevice (net/core/dev.c:11003) 
[ 10.469131][ T272] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.469332][ T272] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.469540][ T272] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.469788][ T272] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.470040][ T272] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 10.470300][ T272] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 10.470550][ T272] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 10.470795][ T272] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 10.471045][ T272] devlink_reload (net/devlink/dev.c:474) 
[ 10.471251][ T272] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 10.471442][ T272] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 10.471638][ T272] ? cap_capable (security/commoncap.c:131) 
[ 10.471825][ 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) 
[ 10.471981][ T272] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 10.472191][ T272] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.472448][ T272] ? __nla_parse (lib/nlattr.c:732) 
[ 10.472649][ T272] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 10.472846][ T272] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 10.473113][ T272] ? cap_capable (security/commoncap.c:131) 
[ 10.473306][ T272] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 10.473505][ T272] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 10.473703][ T272] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 10.473903][ T272] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 10.474151][ T272] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.474396][ T272] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 10.474649][ T272] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 10.474849][ T272] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 10.475040][ T272] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 10.475242][ T272] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 10.475449][ T272] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 10.475601][ T272] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 10.475806][ T272] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 10.476015][ T272] genl_rcv (net/netlink/genetlink.c:1220) 
[ 10.476177][ T272] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 10.476382][ T272] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 10.476584][ T272] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 10.476794][ T272] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 10.476999][ T272] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 10.477205][ T272] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 10.477398][ T272] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 10.477605][ T272] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 10.477806][ T272] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 10.477998][ T272] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.478208][ T272] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 10.478425][ T272] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.478630][ T272] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 10.478881][ T272] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 10.479129][ T272] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 10.479326][ T272] __x64_sys_sendto (net/socket.c:2181) 
[ 10.479515][ T272] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.479751][ T272] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.479940][ T272] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.480178][  T272] RIP: 0033:0x7f1e23be6a4a
[ 10.480387][ 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
[   10.481050][  T272] RSP: 002b:00007ffd4f1df0f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   10.481342][  T272] RAX: ffffffffffffffda RBX: 00000000040cdb00 RCX: 00007f1e23be6a4a
[   10.481622][  T272] RDX: 0000000000000040 RSI: 00000000040cdb00 RDI: 0000000000000005
[   10.481904][  T272] RBP: 00000000040cd910 R08: 00007f1e23d8a200 R09: 000000000000000c
[   10.482197][  T272] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   10.482488][  T272] R13: 00000000040cd910 R14: 0000000000000000 R15: 0000000000000001
| [   10.667801][  T277] ------------[ cut here ]------------
| [ 10.668181][ T277] WARNING: CPU: 3 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) 
| [   10.668561][  T277] Modules linked in: netdevsim
| [   10.669183][  T277] Tainted: [W]=WARN
[   10.669333][  T277] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.669572][ T277] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.669817][ 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
[   10.670492][  T277] RSP: 0018:ffffc900005a71e8 EFLAGS: 00010246
[   10.670740][  T277] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.671021][  T277] RDX: 0000000000000000 RSI: ffff8880052eac98 RDI: ffff88800bccadc0
[   10.671313][  T277] RBP: ffff88800bd50040 R08: 0000000000000000 R09: fffffbfff7a7d83c
[   10.671590][  T277] R10: ffffffffbd3ec1e7 R11: ffff88800bcca300 R12: 0000000000000000
[   10.671867][  T277] R13: ffff8880052ea128 R14: ffff8880052ea008 R15: ffff8880052ea000
[   10.672155][  T277] FS:  00007ff4ed33c800(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[   10.672480][  T277] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.672716][  T277] CR2: 00007ff4ed47b440 CR3: 0000000005040005 CR4: 0000000000772ef0
[   10.672995][  T277] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.673307][  T277] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.673586][  T277] PKRU: 55555554
[   10.673727][  T277] Call Trace:
[   10.673867][  T277]  <TASK>
[ 10.673964][ T277] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.674163][ T277] ? __warn (kernel/panic.c:748) 
[ 10.674311][ T277] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.674500][ T277] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.674697][ T277] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.674840][ T277] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.675029][ T277] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.675239][ T277] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.675430][ T277] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 10.675624][ T277] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.675862][ 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) 
[ 10.676112][ T277] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.676305][ T277] register_netdevice (net/core/dev.c:11003) 
[ 10.676499][ T277] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.676696][ T277] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.676900][ T277] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.677159][ T277] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.677417][ T277] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 10.677663][ T277] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 10.677905][ T277] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 10.678153][ T277] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 10.678398][ T277] devlink_reload (net/devlink/dev.c:474) 
[ 10.678591][ T277] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 10.678780][ T277] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 10.678970][ T277] ? cap_capable (security/commoncap.c:131) 
[ 10.679169][ 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) 
[ 10.679322][ T277] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 10.679512][ T277] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.679747][ T277] ? __nla_parse (lib/nlattr.c:732) 
[ 10.679946][ T277] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 10.680154][ T277] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 10.680398][ T277] ? cap_capable (security/commoncap.c:131) 
[ 10.680591][ T277] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 10.680784][ T277] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 10.680974][ T277] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 10.681175][ T277] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 10.681411][ T277] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.681640][ T277] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 10.681882][ T277] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 10.682084][ T277] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 10.682269][ T277] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 10.682459][ T277] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 10.682660][ T277] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 10.682809][ T277] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 10.682998][ T277] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 10.683206][ T277] genl_rcv (net/netlink/genetlink.c:1220) 
[ 10.683350][ T277] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 10.683540][ T277] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 10.683728][ T277] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 10.683921][ T277] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 10.684128][ T277] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 10.684317][ T277] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 10.684505][ T277] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 10.684702][ T277] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 10.684892][ T277] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 10.685088][ T277] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.685274][ T277] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 10.685471][ T277] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.685664][ T277] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 10.685892][ T277] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.686093][ T277] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 10.686332][ T277] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 10.686524][ T277] __x64_sys_sendto (net/socket.c:2181) 
[ 10.686711][ T277] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.686942][ T277] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.687172][ T277] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.687410][  T277] RIP: 0033:0x7ff4ed548a4a
[ 10.687603][ 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
[   10.688261][  T277] RSP: 002b:00007ffee72f69b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   10.688547][  T277] RAX: ffffffffffffffda RBX: 0000000028224b00 RCX: 00007ff4ed548a4a
[   10.688822][  T277] RDX: 0000000000000040 RSI: 0000000028224b00 RDI: 0000000000000005
[   10.689110][  T277] RBP: 0000000028224910 R08: 00007ff4ed6ec200 R09: 000000000000000c
[   10.689385][  T277] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   10.689664][  T277] R13: 0000000028224910 R14: 0000000000000000 R15: 0000000000000001
| [   10.864664][  T282] ------------[ cut here ]------------
| [ 10.865026][ 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) 
| [   10.865434][  T282] Modules linked in: netdevsim
| [   10.866035][  T282] Tainted: [W]=WARN
[   10.866190][  T282] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.866423][ T282] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.866660][ 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
[   10.867336][  T282] RSP: 0018:ffffc900006971e8 EFLAGS: 00010246
[   10.867578][  T282] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.867853][  T282] RDX: 0000000000000000 RSI: ffff888002b62c98 RDI: ffff8880050c8b00
[   10.868204][  T282] RBP: ffff88800bd50040 R08: 0000000000000000 R09: fffffbfff7a7d83c
[   10.868488][  T282] R10: ffffffffbd3ec1e7 R11: ffff8880050c8040 R12: 0000000000000000
[   10.868765][  T282] R13: ffff888002b62128 R14: ffff888002b62008 R15: ffff888002b62000
[   10.869040][  T282] FS:  00007f9b00e21800(0000) GS:ffff88802f580000(0000) knlGS:0000000000000000
[   10.869381][  T282] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.869625][  T282] CR2: 00007f9b0108f733 CR3: 000000000a200003 CR4: 0000000000772ef0
[   10.869904][  T282] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.870197][  T282] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.870479][  T282] PKRU: 55555554
[   10.870628][  T282] Call Trace:
[   10.870769][  T282]  <TASK>
[ 10.870865][ T282] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.871055][ T282] ? __warn (kernel/panic.c:748) 
[ 10.871230][ T282] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.871417][ T282] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.871610][ T282] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.871752][ T282] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.871945][ T282] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.872156][ T282] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.872346][ T282] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 10.872538][ T282] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.872776][ 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) 
[ 10.872968][ T282] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.873182][ T282] register_netdevice (net/core/dev.c:11003) 
[ 10.873374][ T282] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.873571][ T282] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.873777][ T282] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.874018][ T282] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.874278][ T282] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 10.874531][ T282] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 10.874774][ T282] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 10.875014][ T282] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 10.875286][ T282] devlink_reload (net/devlink/dev.c:474) 
[ 10.875481][ T282] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 10.875667][ T282] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 10.875864][ T282] ? cap_capable (security/commoncap.c:131) 
[ 10.876049][ 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) 
[ 10.876214][ T282] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 10.876405][ T282] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.876641][ T282] ? __nla_parse (lib/nlattr.c:732) 
[ 10.876838][ T282] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 10.877028][ T282] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 10.877290][ T282] ? cap_capable (security/commoncap.c:131) 
[ 10.877477][ T282] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 10.877669][ T282] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 10.877859][ T282] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 10.878049][ T282] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 10.878292][ T282] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.878519][ T282] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 10.878769][ T282] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 10.878957][ T282] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 10.879166][ T282] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 10.879364][ T282] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 10.879566][ T282] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 10.879708][ T282] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 10.879895][ T282] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 10.880107][ T282] genl_rcv (net/netlink/genetlink.c:1220) 
[ 10.880249][ T282] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 10.880441][ T282] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 10.880638][ T282] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 10.880834][ T282] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 10.881026][ T282] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 10.881223][ T282] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 10.881418][ T282] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 10.881621][ T282] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 10.881813][ T282] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 10.881999][ T282] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.882199][ T282] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 10.882398][ T282] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.882589][ T282] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 10.882826][ T282] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 10.883091][ T282] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 10.883287][ T282] __x64_sys_sendto (net/socket.c:2181) 
[ 10.883475][ T282] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.883706][ T282] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.883896][ T282] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.884138][  T282] RIP: 0033:0x7f9b0102da4a
[ 10.884332][ 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
[   10.884978][  T282] RSP: 002b:00007ffc611e5b48 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   10.885272][  T282] RAX: ffffffffffffffda RBX: 00000000196feb00 RCX: 00007f9b0102da4a
[   10.885555][  T282] RDX: 0000000000000040 RSI: 00000000196feb00 RDI: 0000000000000005
[   10.885830][  T282] RBP: 00000000196fe910 R08: 00007f9b011d1200 R09: 000000000000000c
[   10.886120][  T282] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   10.886398][  T282] R13: 00000000196fe910 R14: 0000000000000000 R15: 0000000000000001
| [   31.851400][   T11] ------------[ cut here ]------------
| [ 31.851742][ T11] WARNING: CPU: 2 PID: 11 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [   31.852110][   T11] Modules linked in: netdevsim
| [   31.852657][   T11] Tainted: [W]=WARN
[   31.852800][   T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.853020][   T11] Workqueue: netns cleanup_net
[ 31.853249][ T11] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.853475][ T11] 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
[   31.854080][   T11] RSP: 0018:ffffc900000b7620 EFLAGS: 00010246
[   31.854316][   T11] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   31.854574][   T11] RDX: 0000000000000000 RSI: ffff888005b82c98 RDI: ffff888001a82e10
[   31.854831][   T11] RBP: ffffffffbf523440 R08: 0000000000000000 R09: fffffbfff7a7d83c
[   31.855102][   T11] R10: ffffffffbd3ec1e7 R11: ffff888001a82300 R12: 0000000000000000
[   31.855370][   T11] R13: ffff888005b82128 R14: ffff888005b82008 R15: ffff888005b82000
[   31.855630][   T11] FS:  0000000000000000(0000) GS:ffff88802f500000(0000) knlGS:0000000000000000
[   31.855932][   T11] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.856340][   T11] CR2: 00007feef3145000 CR3: 000000003ad28006 CR4: 0000000000772ef0
[   31.856610][   T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   31.856879][   T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   31.857155][   T11] PKRU: 55555554
[   31.857301][   T11] Call Trace:
[   31.857441][   T11]  <TASK>
[ 31.857545][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.857733][ T11] ? __warn (kernel/panic.c:748) 
[ 31.857876][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.858078][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 31.858277][ T11] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 31.858430][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 31.858624][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 31.858834][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.859041][ T11] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 31.859294][ T11] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 31.859498][ T11] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 31.859692][ T11] register_netdevice (net/core/dev.c:11003) 
[ 31.859898][ T11] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 31.860114][ T11] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 31.860327][ T11] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 31.860585][ T11] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 31.860846][ T11] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 31.861104][ T11] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 31.861344][ T11] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 31.861583][ T11] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 31.861836][ T11] devlink_reload (net/devlink/dev.c:474) 
[ 31.862031][ T11] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 31.862266][ T11] ? devlinks_xa_find_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/devlink/core.c:343) 
[ 31.862463][ T11] devlink_pernet_pre_exit (net/devlink/core.c:288 net/devlink/devl_internal.h:114 net/devlink/core.c:513) 
[ 31.862655][ T11] ? __pfx_devlink_pernet_pre_exit (net/devlink/core.c:496) 
[ 31.862903][ T11] cleanup_net (net/core/net_namespace.c:162 net/core/net_namespace.c:632) 
[ 31.863107][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 31.863293][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:594) 
[ 31.863491][ T11] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 31.863690][ T11] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 31.863883][ T11] ? process_one_work (kernel/workqueue.c:3214) 
[ 31.864102][ T11] process_one_work (kernel/workqueue.c:3238) 
[ 31.864311][ T11] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 31.864502][ T11] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 31.864694][ T11] ? assign_work (kernel/workqueue.c:1200) 
[ 31.864886][ T11] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 31.865097][ T11] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 31.865288][ T11] kthread (kernel/kthread.c:464) 
[ 31.865432][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 31.865626][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 31.865818][ T11] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 31.866003][ T11] ? __pfx_kthread (kernel/kthread.c:413) 


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