======================================
| 0
| xx__-> [    9.618910][  T228] ------------[ cut here ]------------
| [ 9.619288][ 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:10566) 
| [    9.619731][  T228] Modules linked in: netdevsim
[    9.620449][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.620727][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.621005][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[    9.621790][  T228] RSP: 0018:ffffc90000af7520 EFLAGS: 00010246
[    9.622076][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.622408][  T228] RDX: 0000000000000000 RSI: ffff88800895ac98 RDI: ffff88800a252e38
[    9.622728][  T228] RBP: ffffffff9bd23440 R08: 0000000000000000 R09: fffffbfff337d83c
[    9.623054][  T228] R10: ffffffff99bec1e7 R11: ffff88800a252300 R12: 0000000000000000
[    9.623391][  T228] R13: ffff88800895a128 R14: ffff88800895a008 R15: ffff88800895a000
[    9.623721][  T228] FS:  00007f89ae772740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[    9.624094][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.624383][  T228] CR2: 0000565377976b58 CR3: 000000000ab66003 CR4: 0000000000772ef0
[    9.624709][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.625034][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.625388][  T228] PKRU: 55555554
[    9.625563][  T228] Call Trace:
[    9.625736][  T228]  <TASK>
[ 9.625864][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.626108][ T228] ? __warn (kernel/panic.c:748) 
[ 9.626284][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.626506][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.626732][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.626907][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.627141][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.627380][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.627610][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.627909][ 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) 
[ 9.628146][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.628374][ T228] register_netdevice (net/core/dev.c:11003) 
[ 9.628602][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.628835][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.629069][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.629359][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.629532][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.629816][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.630095][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.630385][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.630614][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.630888][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.631130][ 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)) 
[ 9.631303][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.631530][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.631760][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.631986][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 9.632221][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.632447][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.632711][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.632932][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.633158][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.633380][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.633596][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.633830][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 9.634050][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.634276][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.634496][ 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) 
[ 9.634725][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 9.634948][ T228] device_add (drivers/base/core.c:3672) 
[ 9.635186][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.635404][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.635642][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.635927][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.636219][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.636438][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.636665][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.636881][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.637120][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.637300][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.637525][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.637743][ 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) 
[ 9.637971][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.638212][ T228] ksys_write (fs/read_write.c:731) 
[ 9.638384][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.638602][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.638835][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.639058][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.639334][  T228] RIP: 0033:0x7f89ae8b3b77
[ 9.639563][ 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
[    9.640300][  T228] RSP: 002b:00007ffcb96b4048 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.640624][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f89ae8b3b77
[    9.640953][  T228] RDX: 0000000000000007 RSI: 0000565377975b50 RDI: 0000000000000001
[    9.641285][  T228] RBP: 0000565377975b50 R08: 0000000000000003 R09: 0000000000000000
[    9.641614][  T228] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000007
[    9.641937][  T228] R13: 00007f89ae96f760 R14: 0000000000000007 R15: 00007f89ae96a9c0
| [    9.707783][  T228] ------------[ cut here ]------------
| [ 9.708132][ 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:10566) 
| [    9.708563][  T228] Modules linked in: netdevsim
| [    9.709579][  T228] Tainted: [W]=WARN
[    9.709781][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.710051][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.710340][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[    9.711058][  T228] RSP: 0018:ffffc90000af7520 EFLAGS: 00010246
[    9.711339][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.711658][  T228] RDX: 0000000000000000 RSI: ffff88800a8fac98 RDI: ffff88800a252e38
[    9.711980][  T228] RBP: ffffffff9bd23440 R08: 0000000000000000 R09: fffffbfff337d83c
[    9.712316][  T228] R10: ffffffff99bec1e7 R11: ffff88800a252300 R12: 0000000000000000
[    9.712632][  T228] R13: ffff88800a8fa128 R14: ffff88800a8fa008 R15: ffff88800a8fa000
[    9.712953][  T228] FS:  00007f89ae772740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[    9.713337][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.713610][  T228] CR2: 00005653777fe288 CR3: 000000000ab66003 CR4: 0000000000772ef0
[    9.713929][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.714255][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.714568][  T228] PKRU: 55555554
[    9.714733][  T228] Call Trace:
[    9.714900][  T228]  <TASK>
[ 9.715022][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.715255][ T228] ? __warn (kernel/panic.c:748) 
[ 9.715431][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.715650][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.715873][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.716041][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.716270][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.716501][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.716754][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.717034][ 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) 
[ 9.717433][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.717669][ T228] register_netdevice (net/core/dev.c:11003) 
[ 9.717894][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.718136][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.718380][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.718656][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.718830][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.719122][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.719401][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.719677][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.719912][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.720192][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.720415][ 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)) 
[ 9.720583][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.720810][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.721033][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.721263][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 9.721487][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.721705][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.721977][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.722214][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.722429][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.722645][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.722861][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.723087][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 9.723315][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.723537][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.723755][ 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) 
[ 9.723978][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 9.724209][ T228] device_add (drivers/base/core.c:3672) 
[ 9.724428][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.724646][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.724879][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.725166][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.725442][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.725659][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.725880][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.726095][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.726332][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.726510][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.726733][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.726945][ 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) 
[ 9.727183][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.727408][ T228] ksys_write (fs/read_write.c:731) 
[ 9.727581][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.727796][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.728027][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.728256][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.728521][  T228] RIP: 0033:0x7f89ae8b3b77
[ 9.728744][ T228] Code: Unable to access opcode bytes at 0x7f89ae8b3b4d.

Code starting with the faulting instruction
===========================================
[    9.729018][  T228] RSP: 002b:00007ffcb96b4178 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.729346][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f89ae8b3b77
[    9.729666][  T228] RDX: 0000000000000007 RSI: 0000565377975b50 RDI: 0000000000000001
[    9.729977][  T228] RBP: 0000565377975b50 R08: 0000000000000000 R09: 00007f89ae9264e0
[    9.730299][  T228] R10: 00007f89ae9263e0 R11: 0000000000000246 R12: 0000000000000007
[    9.730612][  T228] R13: 00007f89ae96f760 R14: 0000000000000007 R15: 00007f89ae96a9c0
| [    9.787771][  T228] ------------[ cut here ]------------
| [ 9.788174][ T228] WARNING: CPU: 0 PID: 228 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
| [    9.788635][  T228] Modules linked in: netdevsim
| [    9.789349][  T228] Tainted: [W]=WARN
[    9.789505][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.789758][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.790019][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[    9.790740][  T228] RSP: 0018:ffffc90000af7520 EFLAGS: 00010246
[    9.790999][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.791309][  T228] RDX: 0000000000000000 RSI: ffff888005b32c98 RDI: ffff88800a252e38
[    9.791615][  T228] RBP: ffffffff9bd23440 R08: 0000000000000000 R09: fffffbfff337d83c
[    9.791919][  T228] R10: ffffffff99bec1e7 R11: ffff88800a252300 R12: 0000000000000000
[    9.792251][  T228] R13: ffff888005b32128 R14: ffff888005b32008 R15: ffff888005b32000
[    9.792557][  T228] FS:  00007f89ae772740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[    9.792911][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.793189][  T228] CR2: 00007f89ae771258 CR3: 000000000ab66005 CR4: 0000000000772ef0
[    9.793502][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.793805][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.794118][  T228] PKRU: 55555554
[    9.794276][  T228] Call Trace:
[    9.794435][  T228]  <TASK>
[ 9.794540][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.794750][ T228] ? __warn (kernel/panic.c:748) 
[ 9.794910][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.795128][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.795340][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.795498][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.795706][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.795925][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.796153][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.796411][ 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) 
[ 9.796623][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.796832][ T228] register_netdevice (net/core/dev.c:11003) 
[ 9.797045][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.797279][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.797502][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.797766][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.797924][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.798201][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.798463][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.798729][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.798942][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.799213][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.799420][ 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)) 
[ 9.799575][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.799789][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.799999][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.800214][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 9.800420][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.800630][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.800879][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.801086][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.801302][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.801511][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.801721][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.801934][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 9.802158][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.802361][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.802569][ 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) 
[ 9.802782][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 9.802990][ T228] device_add (drivers/base/core.c:3672) 
[ 9.803221][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.803425][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.803655][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.803918][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.804193][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.804401][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.804612][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.804814][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.805026][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.805203][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.805414][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.805616][ 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) 
[ 9.805829][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.806042][ T228] ksys_write (fs/read_write.c:731) 
[ 9.806211][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.806412][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.806634][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.806838][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.807084][  T228] RIP: 0033:0x7f89ae8b3b77
[ 9.807304][ T228] Code: Unable to access opcode bytes at 0x7f89ae8b3b4d.

Code starting with the faulting instruction
===========================================
[    9.807563][  T228] RSP: 002b:00007ffcb96b42a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.807873][  T228] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f89ae8b3b77
[    9.808183][  T228] RDX: 0000000000000007 RSI: 0000565377975b50 RDI: 0000000000000001
[    9.808483][  T228] RBP: 0000565377975b50 R08: 0000000000000000 R09: 00007f89ae9264e0
[    9.808787][  T228] R10: 00007f89ae9263e0 R11: 0000000000000246 R12: 0000000000000007
[    9.809084][  T228] R13: 00007f89ae96f760 R14: 0000000000000007 R15: 00007f89ae96a9c0
| [   10.138637][  T271] ------------[ cut here ]------------
| [ 10.138960][ T271] WARNING: CPU: 2 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:10566) 
| [   10.139461][  T271] Modules linked in: netdevsim
| [   10.140042][  T271] Tainted: [W]=WARN
[   10.140224][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.140477][ T271] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.140735][ T271] 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
[   10.141416][  T271] RSP: 0018:ffffc900005671e8 EFLAGS: 00010246
[   10.141674][  T271] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.141976][  T271] RDX: 0000000000000000 RSI: ffff88800bd02c98 RDI: ffff8880097eadc0
[   10.142286][  T271] RBP: ffff888009630040 R08: 0000000000000000 R09: fffffbfff337d83c
[   10.142579][  T271] R10: ffffffff99bec1e7 R11: ffff8880097ea300 R12: 0000000000000000
[   10.142875][  T271] R13: ffff88800bd02128 R14: ffff88800bd02008 R15: ffff88800bd02000
[   10.143180][  T271] FS:  00007f7625c44800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   10.143523][  T271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.143782][  T271] CR2: 00007fc888b5aa00 CR3: 000000000906a005 CR4: 0000000000772ef0
[   10.144083][  T271] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.144389][  T271] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.144683][  T271] PKRU: 55555554
[   10.144840][  T271] Call Trace:
[   10.144996][  T271]  <TASK>
[ 10.145116][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.145322][ T271] ? __warn (kernel/panic.c:748) 
[ 10.145487][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.145691][ T271] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.145903][ T271] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.146062][ T271] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.146274][ T271] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.146490][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.146691][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 10.146901][ T271] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.147193][ 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) 
[ 10.147415][ T271] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.147622][ T271] register_netdevice (net/core/dev.c:11003) 
[ 10.147834][ T271] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.148047][ T271] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.148279][ T271] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.148536][ T271] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.148802][ T271] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 10.149062][ T271] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 10.149330][ T271] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 10.149585][ T271] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 10.149845][ T271] devlink_reload (net/devlink/dev.c:474) 
[ 10.150051][ T271] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 10.150262][ T271] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 10.150469][ T271] ? cap_capable (security/commoncap.c:131) 
[ 10.150668][ 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) 
[ 10.150833][ T271] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 10.151037][ T271] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.151296][ T271] ? __nla_parse (lib/nlattr.c:732) 
[ 10.151509][ T271] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 10.151712][ T271] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 10.151979][ T271] ? cap_capable (security/commoncap.c:131) 
[ 10.152186][ T271] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 10.152397][ T271] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 10.152605][ T271] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 10.152809][ T271] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 10.153055][ T271] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.153308][ T271] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 10.153564][ T271] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 10.153767][ T271] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 10.153964][ T271] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 10.154180][ T271] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 10.154394][ T271] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 10.154550][ T271] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 10.154756][ T271] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 10.154964][ T271] genl_rcv (net/netlink/genetlink.c:1220) 
[ 10.155131][ T271] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 10.155334][ T271] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 10.155542][ T271] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 10.155752][ T271] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 10.155964][ T271] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 10.156172][ T271] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 10.156378][ T271] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 10.156589][ T271] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 10.156793][ T271] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 10.156995][ T271] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.157205][ T271] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 10.157430][ T271] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.157641][ T271] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 10.157915][ T271] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.158130][ T271] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 10.158383][ T271] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 10.158592][ T271] __x64_sys_sendto (net/socket.c:2181) 
[ 10.158795][ T271] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.159038][ T271] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.159259][ T271] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.159504][  T271] RIP: 0033:0x7f7625e50a4a
[ 10.159713][ 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
[   10.160383][  T271] RSP: 002b:00007ffd4e32abb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   10.160686][  T271] RAX: ffffffffffffffda RBX: 0000000007fe0b00 RCX: 00007f7625e50a4a
[   10.160980][  T271] RDX: 0000000000000040 RSI: 0000000007fe0b00 RDI: 0000000000000005
[   10.161277][  T271] RBP: 0000000007fe0910 R08: 00007f7625ff4200 R09: 000000000000000c
[   10.161564][  T271] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   10.161858][  T271] R13: 0000000007fe0910 R14: 0000000000000000 R15: 0000000000000001
| [   10.356408][  T276] ------------[ cut here ]------------
| [ 10.356759][ T276] WARNING: CPU: 3 PID: 276 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) 
| [   10.357237][  T276] Modules linked in: netdevsim
| [   10.357756][  T276] Tainted: [W]=WARN
[   10.357899][  T276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.358148][ T276] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.358387][ T276] 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
[   10.359038][  T276] RSP: 0018:ffffc900004e71e8 EFLAGS: 00010246
[   10.359287][  T276] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.359565][  T276] RDX: 0000000000000000 RSI: ffff8880092bac98 RDI: ffff888009ead080
[   10.359842][  T276] RBP: ffff888009630040 R08: 0000000000000000 R09: fffffbfff337d83c
[   10.360129][  T276] R10: ffffffff99bec1e7 R11: ffff888009eac5c0 R12: 0000000000000000
[   10.360406][  T276] R13: ffff8880092ba128 R14: ffff8880092ba008 R15: ffff8880092ba000
[   10.360680][  T276] FS:  00007fc32db19800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   10.361010][  T276] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.361256][  T276] CR2: 00007fc32dc58440 CR3: 000000000906a004 CR4: 0000000000772ef0
[   10.361535][  T276] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.361810][  T276] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.362096][  T276] PKRU: 55555554
[   10.362249][  T276] Call Trace:
[   10.362389][  T276]  <TASK>
[ 10.362487][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.362679][ T276] ? __warn (kernel/panic.c:748) 
[ 10.362825][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.363013][ T276] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.363217][ T276] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.363368][ T276] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.363556][ T276] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.363760][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.363952][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 10.364160][ T276] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.364396][ T276] ? _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) 
[ 10.364588][ T276] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.364781][ T276] register_netdevice (net/core/dev.c:11003) 
[ 10.364973][ T276] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.365180][ T276] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.365383][ T276] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.365625][ T276] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.365872][ T276] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 10.366127][ T276] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 10.366391][ T276] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 10.366630][ T276] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 10.366875][ T276] devlink_reload (net/devlink/dev.c:474) 
[ 10.367068][ T276] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 10.367264][ T276] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 10.367455][ T276] ? cap_capable (security/commoncap.c:131) 
[ 10.367642][ T276] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 10.367792][ T276] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 10.367984][ T276] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.368227][ T276] ? __nla_parse (lib/nlattr.c:732) 
[ 10.368425][ T276] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 10.368613][ T276] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 10.368859][ T276] ? cap_capable (security/commoncap.c:131) 
[ 10.369045][ T276] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 10.369255][ T276] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 10.369470][ T276] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 10.369658][ T276] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 10.369888][ T276] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.370125][ T276] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 10.370370][ T276] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 10.370559][ T276] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 10.370743][ T276] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 10.370937][ T276] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 10.371147][ T276] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 10.371291][ T276] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 10.371479][ T276] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 10.371673][ T276] genl_rcv (net/netlink/genetlink.c:1220) 
[ 10.371815][ T276] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 10.372011][ T276] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 10.372215][ T276] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 10.372410][ T276] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 10.372603][ T276] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 10.372787][ T276] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 10.372975][ T276] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 10.373182][ T276] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 10.373374][ T276] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 10.373560][ T276] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.373749][ T276] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 10.373948][ T276] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.374150][ T276] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 10.374383][ T276] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.374572][ T276] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 10.374807][ T276] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 10.375004][ T276] __x64_sys_sendto (net/socket.c:2181) 
[ 10.375199][ T276] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.375432][ T276] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.375621][ T276] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.375864][  T276] RIP: 0033:0x7fc32dd25a4a
[ 10.376057][ T276] 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
[   10.376719][  T276] RSP: 002b:00007ffcaabff458 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   10.377000][  T276] RAX: ffffffffffffffda RBX: 000000003c615b00 RCX: 00007fc32dd25a4a
[   10.377285][  T276] RDX: 0000000000000040 RSI: 000000003c615b00 RDI: 0000000000000005
[   10.377561][  T276] RBP: 000000003c615910 R08: 00007fc32dec9200 R09: 000000000000000c
[   10.377840][  T276] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   10.378125][  T276] R13: 000000003c615910 R14: 0000000000000000 R15: 0000000000000001
| [   10.549604][  T281] ------------[ cut here ]------------
| [ 10.549986][ T281] WARNING: CPU: 3 PID: 281 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) 
| [   10.550805][  T281] Modules linked in: netdevsim
| [   10.551344][  T281] Tainted: [W]=WARN
[   10.551490][  T281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.551724][ T281] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.551994][ T281] 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
[   10.552742][  T281] RSP: 0018:ffffc900005871e8 EFLAGS: 00010246
[   10.552982][  T281] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.553269][  T281] RDX: 0000000000000000 RSI: ffff88800aaa2c98 RDI: ffff888005708b00
[   10.553551][  T281] RBP: ffff888009630040 R08: 0000000000000000 R09: fffffbfff337d83c
[   10.553827][  T281] R10: ffffffff99bec1e7 R11: ffff888005708040 R12: 0000000000000000
[   10.554116][  T281] R13: ffff88800aaa2128 R14: ffff88800aaa2008 R15: ffff88800aaa2000
[   10.554391][  T281] FS:  00007f381c8e5800(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   10.554716][  T281] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.554950][  T281] CR2: 00007f381ca24440 CR3: 000000000910e004 CR4: 0000000000772ef0
[   10.555241][  T281] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.555521][  T281] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.555800][  T281] PKRU: 55555554
[   10.555944][  T281] Call Trace:
[   10.556084][  T281]  <TASK>
[ 10.556192][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.556382][ T281] ? __warn (kernel/panic.c:748) 
[ 10.556528][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.556719][ T281] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.556911][ T281] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.557061][ T281] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.557291][ T281] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.557493][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 10.557681][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 10.557874][ T281] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 10.558128][ T281] ? _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) 
[ 10.558322][ T281] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.558540][ T281] register_netdevice (net/core/dev.c:11003) 
[ 10.558736][ T281] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 10.558934][ T281] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.559149][ T281] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.559395][ T281] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.559644][ T281] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 10.559892][ T281] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 10.560145][ T281] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 10.560384][ T281] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 10.560630][ T281] devlink_reload (net/devlink/dev.c:474) 
[ 10.560821][ T281] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 10.561010][ T281] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 10.561214][ T281] ? cap_capable (security/commoncap.c:131) 
[ 10.561400][ T281] ? fdget (./include/linux/atomic/atomic-arch-fallback.h:479 ./include/linux/atomic/atomic-instrumented.h:50 fs/file.c:1146 fs/file.c:1160) 
[ 10.561551][ T281] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 10.561741][ T281] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.561980][ T281] ? __nla_parse (lib/nlattr.c:732) 
[ 10.562192][ T281] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 10.562382][ T281] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 10.562630][ T281] ? cap_capable (security/commoncap.c:131) 
[ 10.562814][ T281] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 10.563007][ T281] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 10.563207][ T281] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 10.563394][ T281] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 10.563622][ T281] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.563850][ T281] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 10.564095][ T281] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 10.564295][ T281] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 10.564480][ T281] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 10.564668][ T281] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 10.564868][ T281] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 10.565010][ T281] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 10.565209][ T281] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 10.565405][ T281] genl_rcv (net/netlink/genetlink.c:1220) 
[ 10.565548][ T281] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 10.565739][ T281] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 10.565929][ T281] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 10.566138][ T281] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 10.566329][ T281] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 10.566516][ T281] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 10.566707][ T281] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 10.566901][ T281] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 10.567090][ T281] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 10.567287][ T281] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.567473][ T281] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 10.567670][ T281] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.567862][ T281] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 10.568096][ T281] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.568296][ T281] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 10.568533][ T281] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 10.568726][ T281] __x64_sys_sendto (net/socket.c:2181) 
[ 10.568912][ T281] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.569155][ T281] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.569346][ T281] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.569577][  T281] RIP: 0033:0x7f381caf1a4a
[ 10.569768][ T281] 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
[   10.570424][  T281] RSP: 002b:00007ffc43d3e618 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   10.570705][  T281] RAX: ffffffffffffffda RBX: 0000000020441b00 RCX: 00007f381caf1a4a
[   10.570984][  T281] RDX: 0000000000000040 RSI: 0000000020441b00 RDI: 0000000000000005
[   10.571269][  T281] RBP: 0000000020441910 R08: 00007f381cc95200 R09: 000000000000000c
[   10.571543][  T281] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   10.571817][  T281] R13: 0000000020441910 R14: 0000000000000000 R15: 0000000000000001
| [   30.965461][   T11] ------------[ cut here ]------------
| [ 30.965771][ T11] WARNING: CPU: 1 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) 
| [   30.966223][   T11] Modules linked in: netdevsim
| [   30.966779][   T11] Tainted: [W]=WARN
[   30.966918][   T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   30.967224][   T11] Workqueue: netns cleanup_net
[ 30.967437][ T11] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 30.967669][ 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
[   30.968459][   T11] RSP: 0018:ffffc900000b7620 EFLAGS: 00010246
[   30.968690][   T11] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   30.968962][   T11] RDX: 0000000000000000 RSI: ffff88800245ac98 RDI: ffff888001a82e10
[   30.969247][   T11] RBP: ffffffff9bd23440 R08: 0000000000000000 R09: fffffbfff337d83c
[   30.969521][   T11] R10: ffffffff99bec1e7 R11: ffff888001a82300 R12: 0000000000000000
[   30.969787][   T11] R13: ffff88800245a128 R14: ffff88800245a008 R15: ffff88800245a000
[   30.970059][   T11] FS:  0000000000000000(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   30.970383][   T11] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.970609][   T11] CR2: 00007fa5ee4d32f0 CR3: 000000000ba82002 CR4: 0000000000772ef0
[   30.970886][   T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   30.971163][   T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   30.971432][   T11] PKRU: 55555554
[   30.971567][   T11] Call Trace:
[   30.971706][   T11]  <TASK>
[ 30.971802][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 30.971994][ T11] ? __warn (kernel/panic.c:748) 
[ 30.972149][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 30.972334][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 30.972523][ T11] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 30.972664][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 30.972847][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 30.973047][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 30.973248][ T11] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 30.973485][ 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) 
[ 30.973676][ T11] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 30.973864][ T11] register_netdevice (net/core/dev.c:11003) 
[ 30.974054][ T11] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 30.974257][ T11] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 30.974455][ T11] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 30.974692][ T11] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 30.974935][ T11] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 30.975253][ T11] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 30.975494][ T11] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 30.975726][ T11] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 30.975967][ T11] devlink_reload (net/devlink/dev.c:474) 
[ 30.976231][ T11] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 30.976418][ T11] ? devlinks_xa_find_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/devlink/core.c:343) 
[ 30.976610][ T11] devlink_pernet_pre_exit (net/devlink/core.c:288 net/devlink/devl_internal.h:114 net/devlink/core.c:513) 
[ 30.976795][ T11] ? __pfx_devlink_pernet_pre_exit (net/devlink/core.c:496) 
[ 30.977037][ T11] cleanup_net (net/core/net_namespace.c:162 net/core/net_namespace.c:632) 
[ 30.977294][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 30.977480][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:594) 
[ 30.977663][ T11] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 30.977850][ T11] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 30.978027][ T11] ? process_one_work (kernel/workqueue.c:3214) 
[ 30.978279][ T11] process_one_work (kernel/workqueue.c:3238) 
[ 30.978471][ T11] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 30.978652][ T11] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 30.978846][ T11] ? assign_work (kernel/workqueue.c:1200) 
[ 30.979031][ T11] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 30.979236][ T11] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 30.979420][ T11] kthread (kernel/kthread.c:464) 
[ 30.979562][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 30.979746][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 30.979930][ T11] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 30.980116][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 30.980297][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
| [   31.047836][   T11] ------------[ cut here ]------------
| [ 31.048164][ T11] WARNING: CPU: 1 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) 
| [   31.048530][   T11] Modules linked in: netdevsim
| [   31.049090][   T11] Tainted: [W]=WARN
[   31.049241][   T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.049472][   T11] Workqueue: netns cleanup_net
[ 31.049665][ T11] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.049898][ 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
[   31.050630][   T11] RSP: 0018:ffffc900000b7620 EFLAGS: 00010246
[   31.050863][   T11] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   31.051146][   T11] RDX: 0000000000000000 RSI: ffff888002302c98 RDI: ffff888001a82e10
[   31.051418][   T11] RBP: ffffffff9bd23440 R08: 0000000000000000 R09: fffffbfff337d83c
[   31.051691][   T11] R10: ffffffff99bec1e7 R11: ffff888001a82300 R12: 0000000000000000
[   31.051994][   T11] R13: ffff888002302128 R14: ffff888002302008 R15: ffff888002302000
[   31.052273][   T11] FS:  0000000000000000(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   31.052589][   T11] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.052817][   T11] CR2: 00007fc888c48d40 CR3: 000000000bb90003 CR4: 0000000000772ef0
[   31.053095][   T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   31.053371][   T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   31.053640][   T11] PKRU: 55555554
[   31.053833][   T11] Call Trace:
[   31.053973][   T11]  <TASK>
[ 31.054068][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.054268][ T11] ? __warn (kernel/panic.c:748) 
[ 31.054410][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.054593][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 31.054788][ T11] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 31.054928][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 31.055120][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 31.055320][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 31.055515][ T11] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 31.055753][ 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) 
[ 31.055944][ T11] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 31.056144][ T11] register_netdevice (net/core/dev.c:11003) 
[ 31.056333][ T11] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 31.056534][ T11] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 31.056734][ T11] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 31.056979][ T11] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 31.057231][ T11] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 31.057474][ T11] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 31.057711][ T11] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 31.057943][ T11] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 31.058197][ T11] devlink_reload (net/devlink/dev.c:474) 
[ 31.058389][ T11] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 31.058574][ T11] ? devlinks_xa_find_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/devlink/core.c:343) 
[ 31.058767][ T11] devlink_pernet_pre_exit (net/devlink/core.c:288 net/devlink/devl_internal.h:114 net/devlink/core.c:513) 
[ 31.058951][ T11] ? __pfx_devlink_pernet_pre_exit (net/devlink/core.c:496) 
[ 31.059183][ T11] cleanup_net (net/core/net_namespace.c:162 net/core/net_namespace.c:632) 
[ 31.059356][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 31.059530][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:594) 
[ 31.059696][ T11] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 31.059876][ T11] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 31.060041][ T11] ? process_one_work (kernel/workqueue.c:3214) 
[ 31.060228][ T11] process_one_work (kernel/workqueue.c:3238) 
[ 31.060408][ T11] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 31.060576][ T11] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 31.060762][ T11] ? assign_work (kernel/workqueue.c:1200) 
[ 31.060938][ T11] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 31.061153][ T11] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 31.061328][ T11] kthread (kernel/kthread.c:464) 
[ 31.061459][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 31.061634][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 31.061808][ T11] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 31.061985][ 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