======================================
| 0
| xx__-> [   10.162760][  T227] ------------[ cut here ]------------
| [ 10.163227][ T227] WARNING: CPU: 3 PID: 227 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
| [   10.163699][  T227] Modules linked in: netdevsim
[   10.164393][  T227] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.164681][ T227] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.164980][ T227] Code: 00 e8 b3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 b8 56 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   10.165848][  T227] RSP: 0018:ffffc90000b47520 EFLAGS: 00010246
[   10.166147][  T227] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.166511][  T227] RDX: 0000000000000000 RSI: ffff88800609ac98 RDI: ffff888004f2ae38
[   10.166865][  T227] RBP: ffffffffaa324440 R08: 0000000000000000 R09: fffffbfff503d844
[   10.167217][  T227] R10: ffffffffa81ec227 R11: ffff888004f2a300 R12: 0000000000000000
[   10.167556][  T227] R13: ffff88800609a128 R14: ffff88800609a008 R15: ffff88800609a000
[   10.167903][  T227] FS:  00007fce18ce3740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   10.168314][  T227] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.168609][  T227] CR2: 000055e632dbab58 CR3: 0000000005bd6004 CR4: 0000000000772ef0
[   10.168958][  T227] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.169332][  T227] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.169681][  T227] PKRU: 55555554
[   10.169865][  T227] Call Trace:
[   10.170048][  T227]  <TASK>
[ 10.170184][ T227] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.170430][ T227] ? __warn (kernel/panic.c:748) 
[ 10.170615][ T227] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.170853][ T227] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.171093][ T227] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.171281][ T227] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.171521][ T227] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.171769][ T227] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.172016][ T227] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 10.172338][ T227] ? _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) 
[ 10.172584][ T227] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.172823][ T227] register_netdevice (net/core/dev.c:11033) 
[ 10.173066][ T227] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 10.173322][ T227] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.173571][ T227] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.173866][ T227] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.174046][ T227] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.174359][ T227] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.174656][ T227] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.174959][ T227] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.175221][ T227] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.175527][ T227] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.175768][ T227] ? 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)) 
[ 10.175948][ T227] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.176212][ T227] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.176498][ T227] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.176743][ T227] driver_probe_device (drivers/base/dd.c:830) 
[ 10.176997][ T227] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.177252][ T227] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.177543][ T227] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.177781][ T227] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.178018][ T227] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.178277][ T227] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.178519][ T227] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.178761][ T227] __device_attach (drivers/base/dd.c:1030) 
[ 10.178994][ T227] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.179237][ T227] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.179479][ T227] ? 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) 
[ 10.179723][ T227] bus_probe_device (drivers/base/bus.c:537) 
[ 10.179965][ T227] device_add (drivers/base/core.c:3672) 
[ 10.180231][ T227] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.180470][ T227] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.180714][ T227] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.181019][ T227] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.181336][ T227] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.181574][ T227] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.181819][ T227] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.182062][ T227] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.182317][ T227] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.182507][ T227] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.182753][ T227] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.182989][ T227] ? 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) 
[ 10.183246][ T227] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.183491][ T227] ksys_write (fs/read_write.c:731) 
[ 10.183678][ T227] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.183914][ T227] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.184173][ T227] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.184413][ T227] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.184702][  T227] RIP: 0033:0x7fce18e24b77
[ 10.184937][ T227] 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
[   10.185746][  T227] RSP: 002b:00007ffe626b4328 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.186087][  T227] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fce18e24b77
[   10.186441][  T227] RDX: 0000000000000007 RSI: 000055e632db9b50 RDI: 0000000000000001
[   10.186787][  T227] RBP: 000055e632db9b50 R08: 0000000000000003 R09: 0000000000000000
[   10.187127][  T227] R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000000007
[   10.187486][  T227] R13: 00007fce18ee0760 R14: 0000000000000007 R15: 00007fce18edb9c0
| [   10.261133][  T227] ------------[ cut here ]------------
| [ 10.261697][ T227] WARNING: CPU: 3 PID: 227 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
| [   10.262175][  T227] Modules linked in: netdevsim
| [   10.262872][  T227] Tainted: [W]=WARN
[   10.263074][  T227] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.263440][ T227] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.263725][ T227] Code: 00 e8 b3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 b8 56 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   10.264529][  T227] RSP: 0018:ffffc90000b47520 EFLAGS: 00010246
[   10.264814][  T227] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.265257][  T227] RDX: 0000000000000000 RSI: ffff888004e4ac98 RDI: ffff888004f2ae38
[   10.265609][  T227] RBP: ffffffffaa324440 R08: 0000000000000000 R09: fffffbfff503d844
[   10.265939][  T227] R10: ffffffffa81ec227 R11: ffff888004f2a300 R12: 0000000000000000
[   10.266284][  T227] R13: ffff888004e4a128 R14: ffff888004e4a008 R15: ffff888004e4a000
[   10.266628][  T227] FS:  00007fce18ce3740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   10.267018][  T227] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.267331][  T227] CR2: 000055e632c42288 CR3: 0000000005bd6004 CR4: 0000000000772ef0
[   10.267665][  T227] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.268005][  T227] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.268348][  T227] PKRU: 55555554
[   10.268519][  T227] Call Trace:
[   10.268691][  T227]  <TASK>
[ 10.268807][ T227] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.269037][ T227] ? __warn (kernel/panic.c:748) 
[ 10.269227][ T227] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.269466][ T227] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.269718][ T227] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.269895][ T227] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.270126][ T227] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.270385][ T227] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.270624][ T227] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 10.270931][ T227] ? _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) 
[ 10.271188][ T227] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.271426][ T227] register_netdevice (net/core/dev.c:11033) 
[ 10.271674][ T227] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 10.271926][ T227] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.272207][ T227] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.272517][ T227] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.272692][ T227] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.273002][ T227] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.273312][ T227] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.273605][ T227] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.273844][ T227] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.274165][ T227] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.274398][ T227] ? 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)) 
[ 10.274581][ T227] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.274829][ T227] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.275065][ T227] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.275320][ T227] driver_probe_device (drivers/base/dd.c:830) 
[ 10.275588][ T227] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.275822][ T227] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.276104][ T227] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.276370][ T227] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.276596][ T227] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.276837][ T227] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.277065][ T227] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.277314][ T227] __device_attach (drivers/base/dd.c:1030) 
[ 10.277555][ T227] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.277783][ T227] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.278029][ T227] ? 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) 
[ 10.278287][ T227] bus_probe_device (drivers/base/bus.c:537) 
[ 10.278526][ T227] device_add (drivers/base/core.c:3672) 
[ 10.278771][ T227] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.279002][ T227] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.279254][ T227] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.279549][ T227] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.279845][ T227] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.280069][ T227] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.280362][ T227] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.280591][ T227] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.280823][ T227] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.281005][ T227] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.281252][ T227] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.281481][ T227] ? 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) 
[ 10.281722][ T227] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.281962][ T227] ksys_write (fs/read_write.c:731) 
[ 10.282137][ T227] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.282376][ T227] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.282614][ T227] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.282842][ T227] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.283121][  T227] RIP: 0033:0x7fce18e24b77
[ 10.283374][ T227] Code: Unable to access opcode bytes at 0x7fce18e24b4d.

Code starting with the faulting instruction
===========================================
[   10.283674][  T227] RSP: 002b:00007ffe626b4458 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.284010][  T227] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fce18e24b77
[   10.284360][  T227] RDX: 0000000000000007 RSI: 000055e632db9b50 RDI: 0000000000000001
[   10.284697][  T227] RBP: 000055e632db9b50 R08: 0000000000000000 R09: 00007fce18e974e0
[   10.285034][  T227] R10: 00007fce18e973e0 R11: 0000000000000246 R12: 0000000000000007
[   10.285387][  T227] R13: 00007fce18ee0760 R14: 0000000000000007 R15: 00007fce18edb9c0
| [   10.355243][  T227] ------------[ cut here ]------------
| [ 10.355622][ T227] WARNING: CPU: 3 PID: 227 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
| [   10.356402][  T227] Modules linked in: netdevsim
| [   10.357332][  T227] Tainted: [W]=WARN
[   10.357531][  T227] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.357830][ T227] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.358144][ T227] Code: 00 e8 b3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 b8 56 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   10.359024][  T227] RSP: 0018:ffffc90000b47520 EFLAGS: 00010246
[   10.359351][  T227] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.359731][  T227] RDX: 0000000000000000 RSI: ffff88800b2eac98 RDI: ffff888004f2ae38
[   10.360095][  T227] RBP: ffffffffaa324440 R08: 0000000000000000 R09: fffffbfff503d844
[   10.360481][  T227] R10: ffffffffa81ec227 R11: ffff888004f2a300 R12: 0000000000000000
[   10.360852][  T227] R13: ffff88800b2ea128 R14: ffff88800b2ea008 R15: ffff88800b2ea000
[   10.361234][  T227] FS:  00007fce18ce3740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   10.361667][  T227] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.361982][  T227] CR2: 00007fce18d68440 CR3: 0000000005bd6006 CR4: 0000000000772ef0
[   10.362364][  T227] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.362733][  T227] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.363105][  T227] PKRU: 55555554
[   10.363304][  T227] Call Trace:
[   10.363494][  T227]  <TASK>
[ 10.363630][ T227] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.363886][ T227] ? __warn (kernel/panic.c:748) 
[ 10.364087][ T227] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.364358][ T227] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.364615][ T227] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.364810][ T227] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.365061][ T227] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.365335][ T227] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.365626][ T227] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 10.365940][ T227] ? _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) 
[ 10.366206][ T227] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.366458][ T227] register_netdevice (net/core/dev.c:11033) 
[ 10.366731][ T227] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 10.366989][ T227] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.367275][ T227] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.367613][ T227] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 10.367803][ T227] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.368124][ T227] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.368451][ T227] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 10.368768][ T227] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 10.369041][ T227] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 10.369379][ T227] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 10.369644][ T227] ? 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)) 
[ 10.369836][ T227] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 10.370100][ T227] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 10.370368][ T227] __driver_probe_device (drivers/base/dd.c:800) 
[ 10.370593][ T227] driver_probe_device (drivers/base/dd.c:830) 
[ 10.370822][ T227] __device_attach_driver (drivers/base/dd.c:959) 
[ 10.371048][ T227] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 10.371339][ T227] bus_for_each_drv (drivers/base/bus.c:462) 
[ 10.371570][ T227] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 10.371813][ T227] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.372038][ T227] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.372275][ T227] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 10.372515][ T227] __device_attach (drivers/base/dd.c:1030) 
[ 10.372739][ T227] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 10.372963][ T227] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 10.373214][ T227] ? 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) 
[ 10.373452][ T227] bus_probe_device (drivers/base/bus.c:537) 
[ 10.373681][ T227] device_add (drivers/base/core.c:3672) 
[ 10.373910][ T227] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 10.374135][ T227] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 10.374389][ T227] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 10.374683][ T227] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 10.374977][ T227] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.375218][ T227] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 10.375454][ T227] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 10.375687][ T227] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 10.375919][ T227] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 10.376101][ T227] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 10.376351][ T227] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 10.376577][ T227] ? 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) 
[ 10.376817][ T227] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 10.377051][ T227] ksys_write (fs/read_write.c:731) 
[ 10.377240][ T227] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 10.377464][ T227] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 10.377701][ T227] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.377933][ T227] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.378225][  T227] RIP: 0033:0x7fce18e24b77
[ 10.378459][ T227] Code: Unable to access opcode bytes at 0x7fce18e24b4d.

Code starting with the faulting instruction
===========================================
[   10.378753][  T227] RSP: 002b:00007ffe626b4588 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   10.379125][  T227] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007fce18e24b77
[   10.379482][  T227] RDX: 0000000000000007 RSI: 000055e632db9b50 RDI: 0000000000000001
[   10.379822][  T227] RBP: 000055e632db9b50 R08: 0000000000000000 R09: 00007fce18e974e0
[   10.380210][  T227] R10: 00007fce18e973e0 R11: 0000000000000246 R12: 0000000000000007
[   10.380564][  T227] R13: 00007fce18ee0760 R14: 0000000000000007 R15: 00007fce18edb9c0
| [   10.786150][  T271] ------------[ cut here ]------------
| [ 10.786507][ T271] WARNING: CPU: 0 PID: 271 at ./include/net/netdev_lock.h:52 __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
| [   10.787059][  T271] Modules linked in: netdevsim
| [   10.787786][  T271] Tainted: [W]=WARN
[   10.787952][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.788323][ T271] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.788594][ T271] Code: 00 e8 b3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 b8 56 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   10.789440][  T271] RSP: 0018:ffffc900005771e8 EFLAGS: 00010246
[   10.789712][  T271] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.790034][  T271] RDX: 0000000000000000 RSI: ffff88800e442c98 RDI: ffff88800b12adc0
[   10.790450][  T271] RBP: ffff888004e30040 R08: 0000000000000000 R09: fffffbfff503d844
[   10.790772][  T271] R10: ffffffffa81ec227 R11: ffff88800b12a300 R12: 0000000000000000
[   10.791094][  T271] R13: ffff88800e442128 R14: ffff88800e442008 R15: ffff88800e442000
[   10.791504][  T271] FS:  00007f85a272d800(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   10.791873][  T271] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.792244][  T271] CR2: 00007fc9ea047840 CR3: 0000000009284005 CR4: 0000000000772ef0
[   10.792604][  T271] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.792950][  T271] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.793307][  T271] PKRU: 55555554
[   10.793483][  T271] Call Trace:
[   10.793661][  T271]  <TASK>
[ 10.793776][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.793994][ T271] ? __warn (kernel/panic.c:748) 
[ 10.794175][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.794391][ T271] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.794615][ T271] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.794787][ T271] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.795008][ T271] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.795246][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.795467][ T271] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 10.795702][ T271] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 10.795974][ 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) 
[ 10.796212][ T271] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.796439][ T271] register_netdevice (net/core/dev.c:11033) 
[ 10.796662][ T271] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 10.796896][ T271] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.797128][ T271] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.797428][ T271] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.797702][ T271] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 10.797971][ T271] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 10.798253][ T271] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 10.798514][ T271] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 10.798783][ T271] devlink_reload (net/devlink/dev.c:474) 
[ 10.798994][ T271] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 10.799216][ T271] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 10.799423][ T271] ? cap_capable (security/commoncap.c:131) 
[ 10.799628][ 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) 
[ 10.799795][ T271] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 10.800006][ T271] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.800275][ T271] ? __nla_parse (lib/nlattr.c:732) 
[ 10.800490][ T271] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 10.800697][ T271] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 10.800961][ T271] ? cap_capable (security/commoncap.c:131) 
[ 10.801180][ T271] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 10.801396][ T271] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 10.801603][ T271] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 10.801809][ T271] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 10.802064][ T271] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.802327][ T271] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 10.802592][ T271] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 10.802801][ T271] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 10.803001][ T271] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 10.803226][ T271] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 10.803449][ T271] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 10.803605][ T271] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 10.803814][ T271] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 10.804029][ T271] genl_rcv (net/netlink/genetlink.c:1220) 
[ 10.804199][ T271] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 10.804412][ T271] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 10.804629][ T271] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 10.804875][ T271] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 10.805084][ T271] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 10.805301][ T271] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 10.805515][ T271] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 10.805727][ T271] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 10.805935][ T271] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 10.806135][ T271] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.806369][ T271] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 10.806584][ T271] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.806794][ T271] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 10.807047][ T271] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 10.807321][ T271] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 10.807533][ T271] __x64_sys_sendto (net/socket.c:2181) 
[ 10.807736][ T271] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.807990][ T271] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.808209][ T271] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.808462][  T271] RIP: 0033:0x7f85a2939a4a
[ 10.808669][ 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
[   10.809388][  T271] RSP: 002b:00007ffeb80fd4a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   10.809695][  T271] RAX: ffffffffffffffda RBX: 0000000015b1ab00 RCX: 00007f85a2939a4a
[   10.809993][  T271] RDX: 0000000000000040 RSI: 0000000015b1ab00 RDI: 0000000000000005
[   10.810315][  T271] RBP: 0000000015b1a910 R08: 00007f85a2add200 R09: 000000000000000c
[   10.810621][  T271] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   10.810923][  T271] R13: 0000000015b1a910 R14: 0000000000000000 R15: 0000000000000001
| [   10.975987][  T276] ------------[ cut here ]------------
| [ 10.976399][ T276] WARNING: CPU: 2 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:10596) 
| [   10.976842][  T276] Modules linked in: netdevsim
| [   10.977484][  T276] Tainted: [W]=WARN
[   10.977662][  T276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 10.978033][ T276] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.978360][ T276] Code: 00 e8 b3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 b8 56 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   10.979095][  T276] RSP: 0018:ffffc900005771e8 EFLAGS: 00010246
[   10.979389][  T276] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   10.979721][  T276] RDX: 0000000000000000 RSI: ffff8880097bac98 RDI: ffff8880023f8b00
[   10.980056][  T276] RBP: ffff888004e30040 R08: 0000000000000000 R09: fffffbfff503d844
[   10.980401][  T276] R10: ffffffffa81ec227 R11: ffff8880023f8040 R12: 0000000000000000
[   10.980737][  T276] R13: ffff8880097ba128 R14: ffff8880097ba008 R15: ffff8880097ba000
[   10.981077][  T276] FS:  00007f966f361800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   10.981476][  T276] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   10.981751][  T276] CR2: 00007f966f5cf733 CR3: 0000000009174005 CR4: 0000000000772ef0
[   10.982084][  T276] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   10.982425][  T276] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   10.982749][  T276] PKRU: 55555554
[   10.982925][  T276] Call Trace:
[   10.983110][  T276]  <TASK>
[ 10.983256][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.983494][ T276] ? __warn (kernel/panic.c:748) 
[ 10.983678][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.983910][ T276] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 10.984163][ T276] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 10.984346][ T276] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 10.984573][ T276] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 10.984815][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 10.985041][ T276] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 10.985293][ T276] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 10.985599][ 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) 
[ 10.985838][ T276] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 10.986071][ T276] register_netdevice (net/core/dev.c:11033) 
[ 10.986323][ T276] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 10.986570][ T276] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 10.986814][ T276] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 10.987111][ T276] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 10.987451][ T276] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 10.987752][ T276] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 10.988052][ T276] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 10.988338][ T276] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 10.988629][ T276] devlink_reload (net/devlink/dev.c:474) 
[ 10.988866][ T276] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 10.989096][ T276] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 10.989344][ T276] ? cap_capable (security/commoncap.c:131) 
[ 10.989570][ 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) 
[ 10.989756][ T276] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 10.989992][ T276] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.990285][ T276] ? __nla_parse (lib/nlattr.c:732) 
[ 10.990530][ T276] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 10.990769][ T276] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 10.991058][ T276] ? cap_capable (security/commoncap.c:131) 
[ 10.991304][ T276] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 10.991534][ T276] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 10.991761][ T276] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 10.991983][ T276] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 10.992293][ T276] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 10.992570][ T276] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 10.992874][ T276] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 10.993115][ T276] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 10.993353][ T276] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 10.993579][ T276] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 10.993826][ T276] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 10.994007][ T276] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 10.994246][ T276] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 10.994477][ T276] genl_rcv (net/netlink/genetlink.c:1220) 
[ 10.994654][ T276] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 10.994911][ T276] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 10.995146][ T276] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 10.995416][ T276] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 10.995672][ T276] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 10.995906][ T276] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 10.996141][ T276] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 10.996389][ T276] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 10.996614][ T276] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 10.996835][ T276] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 10.997054][ T276] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 10.997300][ T276] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 10.997535][ T276] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 10.997822][ T276] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 10.998098][ T276] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 10.998339][ T276] __x64_sys_sendto (net/socket.c:2181) 
[ 10.998562][ T276] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 10.998835][ T276] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 10.999061][ T276] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   10.999374][  T276] RIP: 0033:0x7f966f56da4a
[ 10.999613][ 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
[   11.000375][  T276] RSP: 002b:00007ffd0c5d5cb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   11.000717][  T276] RAX: ffffffffffffffda RBX: 000000001df59b00 RCX: 00007f966f56da4a
[   11.001039][  T276] RDX: 0000000000000040 RSI: 000000001df59b00 RDI: 0000000000000005
[   11.001376][  T276] RBP: 000000001df59910 R08: 00007f966f711200 R09: 000000000000000c
[   11.001707][  T276] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   11.002036][  T276] R13: 000000001df59910 R14: 0000000000000000 R15: 0000000000000001
| [   11.180467][  T281] ------------[ cut here ]------------
| [ 11.180937][ T281] WARNING: CPU: 2 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:10596) 
| [   11.181428][  T281] Modules linked in: netdevsim
| [   11.182235][  T281] Tainted: [W]=WARN
[   11.182421][  T281] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 11.182698][ T281] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 11.182978][ T281] Code: 00 e8 b3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 b8 56 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   11.183775][  T281] RSP: 0018:ffffc900005a71e8 EFLAGS: 00010246
[   11.184057][  T281] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   11.184389][  T281] RDX: 0000000000000000 RSI: ffff88800b172c98 RDI: ffff88800b275080
[   11.184713][  T281] RBP: ffff888004e30040 R08: 0000000000000000 R09: fffffbfff503d844
[   11.185038][  T281] R10: ffffffffa81ec227 R11: ffff88800b2745c0 R12: 0000000000000000
[   11.185410][  T281] R13: ffff88800b172128 R14: ffff88800b172008 R15: ffff88800b172000
[   11.185751][  T281] FS:  00007f5d32779800(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   11.186125][  T281] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   11.186421][  T281] CR2: 00007f5d328b8440 CR3: 00000000025fa002 CR4: 0000000000772ef0
[   11.186752][  T281] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   11.187075][  T281] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   11.187410][  T281] PKRU: 55555554
[   11.187582][  T281] Call Trace:
[   11.187756][  T281]  <TASK>
[ 11.187878][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 11.188107][ T281] ? __warn (kernel/panic.c:748) 
[ 11.188300][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 11.188528][ T281] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 11.188760][ T281] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 11.188950][ T281] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 11.189187][ T281] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 11.189424][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 11.189678][ T281] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10596) 
[ 11.189911][ T281] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 11.190234][ 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) 
[ 11.190465][ T281] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 11.190696][ T281] register_netdevice (net/core/dev.c:11033) 
[ 11.190923][ T281] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 11.191171][ T281] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 11.191416][ T281] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 11.191701][ T281] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 11.191992][ T281] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 11.192290][ T281] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 11.192573][ T281] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 11.192855][ T281] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 11.193162][ T281] devlink_reload (net/devlink/dev.c:474) 
[ 11.193393][ T281] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 11.193612][ T281] ? trace_cap_capable (./include/trace/events/capability.h:26 (discriminator 21)) 
[ 11.193846][ T281] ? cap_capable (security/commoncap.c:131) 
[ 11.194067][ 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) 
[ 11.194269][ T281] devlink_nl_reload_doit (net/devlink/dev.c:584) 
[ 11.194506][ T281] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.194801][ T281] ? __nla_parse (lib/nlattr.c:732) 
[ 11.195045][ T281] genl_family_rcv_msg_doit (net/netlink/genetlink.c:1115) 
[ 11.195292][ T281] ? __pfx_genl_family_rcv_msg_doit (net/netlink/genetlink.c:1088) 
[ 11.195604][ T281] ? cap_capable (security/commoncap.c:131) 
[ 11.195835][ T281] ? validate_chain (kernel/locking/lockdep.c:3799 kernel/locking/lockdep.c:3819 kernel/locking/lockdep.c:3874) 
[ 11.196078][ T281] genl_family_rcv_msg (net/netlink/genetlink.c:1195) 
[ 11.196350][ T281] ? __pfx_genl_family_rcv_msg (net/netlink/genetlink.c:1160) 
[ 11.196584][ T281] ? __pfx_devlink_nl_pre_doit_dev_lock (net/devlink/netlink.c:257) 
[ 11.196857][ T281] ? __pfx_devlink_nl_reload_doit (net/devlink/dev.c:520) 
[ 11.197131][ T281] ? __pfx_devlink_nl_post_doit_dev_lock (net/devlink/netlink.c:288) 
[ 11.197434][ T281] genl_rcv_msg (net/netlink/genetlink.c:65 net/netlink/genetlink.c:1211) 
[ 11.197666][ T281] netlink_rcv_skb (net/netlink/af_netlink.c:2534) 
[ 11.197891][ T281] ? __pfx_genl_rcv_msg (net/netlink/genetlink.c:1201) 
[ 11.198122][ T281] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2511) 
[ 11.198465][ T281] ? genl_rcv (net/netlink/genetlink.c:1219) 
[ 11.198720][ T281] ? __pfx_down_read (kernel/locking/rwsem.c:1522) 
[ 11.199026][ T281] ? netlink_deliver_tap (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/netlink/af_netlink.c:340) 
[ 11.199348][ T281] genl_rcv (net/netlink/genetlink.c:1220) 
[ 11.199600][ T281] netlink_unicast (net/netlink/af_netlink.c:1313 net/netlink/af_netlink.c:1339) 
[ 11.199901][ T281] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1324) 
[ 11.200127][ T281] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 11.200377][ T281] netlink_sendmsg (net/netlink/af_netlink.c:1883) 
[ 11.200612][ T281] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1802) 
[ 11.200839][ T281] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 11.201064][ T281] ? __might_fault (mm/memory.c:6851 mm/memory.c:6844) 
[ 11.201305][ T281] __sys_sendto (net/socket.c:709 net/socket.c:724 net/socket.c:2178) 
[ 11.201529][ T281] ? __pfx___sys_sendto (net/socket.c:2145) 
[ 11.201752][ T281] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 11.201978][ T281] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 11.202233][ T281] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 11.202471][ T281] ? __rseq_handle_notify_resume (kernel/rseq.c:420) 
[ 11.202755][ T281] ? rseq_update_cpu_node_id (kernel/rseq.c:188 (discriminator 10)) 
[ 11.202980][ T281] ? __pfx___rseq_handle_notify_resume (kernel/rseq.c:403) 
[ 11.203276][ T281] ? __pfx___x64_sys_openat (fs/open.c:1454) 
[ 11.203506][ T281] __x64_sys_sendto (net/socket.c:2181) 
[ 11.203755][ T281] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 11.204037][ T281] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 11.204287][ T281] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   11.204560][  T281] RIP: 0033:0x7f5d32985a4a
[ 11.204803][ 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
[   11.205576][  T281] RSP: 002b:00007fff73d68b28 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
[   11.205904][  T281] RAX: ffffffffffffffda RBX: 0000000021c3db00 RCX: 00007f5d32985a4a
[   11.206272][  T281] RDX: 0000000000000040 RSI: 0000000021c3db00 RDI: 0000000000000005
[   11.206598][  T281] RBP: 0000000021c3d910 R08: 00007f5d32b29200 R09: 000000000000000c
[   11.206925][  T281] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000040f200
[   11.207259][  T281] R13: 0000000021c3d910 R14: 0000000000000000 R15: 0000000000000001
| [   32.568393][   T11] ------------[ cut here ]------------
| [ 32.568711][ 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:10596) 
| [   32.569093][   T11] Modules linked in: netdevsim
| [   32.569690][   T11] Tainted: [W]=WARN
[   32.569831][   T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.570074][   T11] Workqueue: netns cleanup_net
[ 32.570318][ T11] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 32.570560][ T11] Code: 00 e8 b3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 b8 56 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   32.571245][   T11] RSP: 0018:ffffc900000b7620 EFLAGS: 00010246
[   32.571500][   T11] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   32.571783][   T11] RDX: 0000000000000000 RSI: ffff888004feac98 RDI: ffff888001a82e10
[   32.572066][   T11] RBP: ffffffffaa324440 R08: 0000000000000000 R09: fffffbfff503d844
[   32.572370][   T11] R10: ffffffffa81ec227 R11: ffff888001a82300 R12: 0000000000000000
[   32.572656][   T11] R13: ffff888004fea128 R14: ffff888004fea008 R15: ffff888004fea000
[   32.572942][   T11] FS:  0000000000000000(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   32.573299][   T11] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.573541][   T11] CR2: 00007f7e28ff0000 CR3: 000000001e728002 CR4: 0000000000772ef0
[   32.573822][   T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   32.574237][   T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   32.574532][   T11] PKRU: 55555554
[   32.574678][   T11] Call Trace:
[   32.574825][   T11]  <TASK>
[ 32.574924][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 32.575124][ T11] ? __warn (kernel/panic.c:748) 
[ 32.575299][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 32.575512][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 32.575715][ T11] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 32.575866][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 32.576059][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 32.576290][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 32.576493][ T11] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 32.576734][ 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) 
[ 32.576938][ T11] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 32.577133][ T11] register_netdevice (net/core/dev.c:11033) 
[ 32.577374][ T11] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 32.577581][ T11] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 32.577790][ T11] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 32.578046][ T11] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 32.578320][ T11] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 32.578577][ T11] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 32.578824][ T11] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 32.579063][ T11] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 32.579319][ T11] devlink_reload (net/devlink/dev.c:474) 
[ 32.579510][ T11] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 32.579691][ T11] ? devlinks_xa_find_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/devlink/core.c:343) 
[ 32.579891][ T11] devlink_pernet_pre_exit (net/devlink/core.c:288 net/devlink/devl_internal.h:114 net/devlink/core.c:513) 
[ 32.580077][ T11] ? __pfx_devlink_pernet_pre_exit (net/devlink/core.c:496) 
[ 32.580409][ T11] cleanup_net (net/core/net_namespace.c:162 net/core/net_namespace.c:632) 
[ 32.580600][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 32.580799][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:594) 
[ 32.580982][ T11] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 32.581228][ T11] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 32.581414][ T11] ? process_one_work (kernel/workqueue.c:3214) 
[ 32.581615][ T11] process_one_work (kernel/workqueue.c:3238) 
[ 32.581808][ T11] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 32.581990][ T11] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 32.582204][ T11] ? assign_work (kernel/workqueue.c:1200) 
[ 32.582407][ T11] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 32.582607][ T11] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 32.582802][ T11] kthread (kernel/kthread.c:464) 
[ 32.582946][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 32.583142][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 32.583342][ T11] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 32.583535][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 32.583722][ T11] ret_from_fork_asm (arch/x86/entry/entry_64.S:257) 
| [   32.637547][   T11] ------------[ cut here ]------------
| [ 32.637891][ T11] WARNING: CPU: 0 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:10596) 
| [   32.638343][   T11] Modules linked in: netdevsim
| [   32.638909][   T11] Tainted: [W]=WARN
[   32.639049][   T11] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.639296][   T11] Workqueue: netns cleanup_net
[ 32.639501][ T11] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 32.639742][ T11] Code: 00 e8 b3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 b8 56 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	b3 48                	mov    $0x48,%bl
   4:	fe                   	(bad)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 b8 56 78 00       	call   0x7856d9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[   32.640403][   T11] RSP: 0018:ffffc900000b7620 EFLAGS: 00010246
[   32.640642][   T11] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   32.640907][   T11] RDX: 0000000000000000 RSI: ffff888004ebac98 RDI: ffff888001a82e10
[   32.641185][   T11] RBP: ffffffffaa324440 R08: 0000000000000000 R09: fffffbfff503d844
[   32.641460][   T11] R10: ffffffffa81ec227 R11: ffff888001a82300 R12: 0000000000000000
[   32.641730][   T11] R13: ffff888004eba128 R14: ffff888004eba008 R15: ffff888004eba000
[   32.642006][   T11] FS:  0000000000000000(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   32.642332][   T11] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.642668][   T11] CR2: 00007fc9e9fe49d0 CR3: 000000000b840002 CR4: 0000000000772ef0
[   32.642946][   T11] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   32.643229][   T11] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   32.643514][   T11] PKRU: 55555554
[   32.643657][   T11] Call Trace:
[   32.643818][   T11]  <TASK>
[ 32.643933][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 32.644124][ T11] ? __warn (kernel/panic.c:748) 
[ 32.644281][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 32.644469][ T11] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 32.644668][ T11] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 32.644825][ T11] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 32.645024][ T11] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 32.645240][ T11] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10596) 
[ 32.645464][ T11] ? __pfx___netdev_update_features (net/core/dev.c:10589) 
[ 32.645714][ 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) 
[ 32.645909][ T11] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 32.646111][ T11] register_netdevice (net/core/dev.c:11033) 
[ 32.646322][ T11] ? __pfx_register_netdevice (net/core/dev.c:10911) 
[ 32.646523][ T11] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 32.646730][ T11] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 32.646981][ T11] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 32.647233][ T11] ? nsim_dev_hwstats_init (./include/linux/workqueue.h:817 drivers/net/netdevsim/hwstats.c:442) netdevsim 
[ 32.647489][ T11] nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1450 drivers/net/netdevsim/dev.c:1501) netdevsim 
[ 32.647736][ T11] ? __pfx_nsim_dev_reload_create (drivers/net/netdevsim/dev.c:1462) netdevsim 
[ 32.647981][ T11] ? devlink_params_driverinit_load_new (net/devlink/param.c:833 (discriminator 2)) 
[ 32.648236][ T11] devlink_reload (net/devlink/dev.c:474) 
[ 32.648433][ T11] ? __pfx_devlink_reload (net/devlink/dev.c:446) 
[ 32.648627][ T11] ? devlinks_xa_find_get (./include/linux/rcupdate.h:347 ./include/linux/rcupdate.h:880 net/devlink/core.c:343) 
[ 32.648823][ T11] devlink_pernet_pre_exit (net/devlink/core.c:288 net/devlink/devl_internal.h:114 net/devlink/core.c:513) 
[ 32.649010][ T11] ? __pfx_devlink_pernet_pre_exit (net/devlink/core.c:496) 
[ 32.649279][ T11] cleanup_net (net/core/net_namespace.c:162 net/core/net_namespace.c:632) 
[ 32.649469][ T11] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 32.649691][ T11] ? __pfx_cleanup_net (net/core/net_namespace.c:594) 
[ 32.649877][ T11] ? trace_lock_acquire (./include/trace/events/lock.h:24 (discriminator 21)) 
[ 32.650073][ T11] ? lock_acquire (kernel/locking/lockdep.c:5824) 
[ 32.650267][ T11] ? process_one_work (kernel/workqueue.c:3214) 
[ 32.650465][ T11] process_one_work (kernel/workqueue.c:3238) 
[ 32.650694][ T11] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 32.650884][ T11] ? __pfx_process_one_work (kernel/workqueue.c:3140) 
[ 32.651086][ T11] ? assign_work (kernel/workqueue.c:1200) 
[ 32.651294][ T11] worker_thread (kernel/workqueue.c:3313 kernel/workqueue.c:3400) 
[ 32.651495][ T11] ? __pfx_worker_thread (kernel/workqueue.c:3346) 
[ 32.651687][ T11] kthread (kernel/kthread.c:464) 
[ 32.651831][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 32.652039][ T11] ? __pfx_kthread (kernel/kthread.c:413) 
[ 32.652245][ T11] ret_from_fork (arch/x86/kernel/process.c:148) 
[ 32.652437][ 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