======================================
| 0
| xx__-> [   30.071397][  T609] ------------[ cut here ]------------
| [ 30.071795][ T609] WARNING: CPU: 1 PID: 609 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) 
| [   30.072248][  T609] Modules linked in: netdevsim psample sctp
[   30.072900][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 30.073179][ T609] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 30.073463][ T609] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   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 d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[   30.074255][  T609] RSP: 0018:ffffc90000e97528 EFLAGS: 00010246
[   30.074540][  T609] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   30.074881][  T609] RDX: 0000000000000000 RSI: ffff88800256acd0 RDI: ffff88800cf450f8
[   30.075217][  T609] RBP: ffffffffabc53580 R08: 0000000000000000 R09: fffffbfff5342504
[   30.075550][  T609] R10: ffffffffa9a12827 R11: ffff88800cf445c0 R12: 0000000000000000
[   30.075940][  T609] R13: ffff88800256a130 R14: ffff88800256a008 R15: ffff88800256a000
[   30.076275][  T609] FS:  00007f4bec1e41c0(0000) GS:ffff88806ce80000(0000) knlGS:0000000000000000
[   30.076677][  T609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.076958][  T609] CR2: 00007f4bde189470 CR3: 000000000ce98002 CR4: 0000000000772ef0
[   30.077292][  T609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   30.077651][  T609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   30.077985][  T609] PKRU: 55555554
[   30.078281][  T609] Call Trace:
[   30.078453][  T609]  <TASK>
[ 30.078586][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 30.078813][ T609] ? __warn (kernel/panic.c:748) 
[ 30.078982][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 30.079205][ T609] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 30.079431][ T609] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 30.079615][ T609] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 30.079840][ T609] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 30.080077][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 30.080309][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 30.080538][ T609] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 30.080825][ T609] ? _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) 
[ 30.081050][ T609] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 30.081282][ T609] register_netdevice (net/core/dev.c:11003) 
[ 30.081511][ T609] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 30.081753][ T609] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 30.081990][ T609] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 30.082226][ T609] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 30.082514][ T609] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 30.082697][ T609] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 30.082993][ T609] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 30.083273][ T609] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 30.083571][ T609] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 30.083807][ T609] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 30.084085][ T609] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 30.084309][ T609] ? 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)) 
[ 30.084481][ T609] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 30.084722][ T609] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 30.084951][ T609] __driver_probe_device (drivers/base/dd.c:800) 
[ 30.085176][ T609] driver_probe_device (drivers/base/dd.c:830) 
[ 30.085399][ T609] __device_attach_driver (drivers/base/dd.c:959) 
[ 30.085646][ T609] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 30.085915][ T609] bus_for_each_drv (drivers/base/bus.c:462) 
[ 30.086138][ T609] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 30.086357][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 30.086589][ T609] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 30.086808][ T609] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 30.087033][ T609] __device_attach (drivers/base/dd.c:1030) 
[ 30.087254][ T609] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 30.087473][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 30.087708][ T609] ? 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) 
[ 30.087939][ T609] bus_probe_device (drivers/base/bus.c:537) 
[ 30.088162][ T609] device_add (drivers/base/core.c:3672) 
[ 30.088384][ T609] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 30.088613][ T609] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 30.088847][ T609] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 30.089130][ T609] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 30.089420][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 30.089658][ T609] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 30.089899][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 30.090117][ T609] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 30.090349][ T609] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 30.090527][ T609] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 30.090762][ T609] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 30.090985][ T609] ? 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) 
[ 30.091218][ T609] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 30.091443][ T609] ksys_write (fs/read_write.c:731) 
[ 30.091632][ T609] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 30.091850][ T609] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 30.092081][ T609] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 30.092307][ T609] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   30.092586][  T609] RIP: 0033:0x7f4bec3feb77
[ 30.092823][ T609] 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
[   30.093595][  T609] RSP: 002b:00007ffde1038ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   30.094100][  T609] RAX: ffffffffffffffda RBX: 00007f4bec1e4140 RCX: 00007f4bec3feb77
[   30.094433][  T609] RDX: 0000000000000008 RSI: 000055c304e304b0 RDI: 0000000000000005
[   30.094775][  T609] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[   30.095234][  T609] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f4bde081700
[   30.095576][  T609] R13: 000055c304e304b0 R14: 0000000000000005 R15: 000055c304967910
| [   41.535876][  T609] ------------[ cut here ]------------
| [ 41.536263][ T609] WARNING: CPU: 3 PID: 609 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) 
| [   41.536718][  T609] Modules linked in: netdevsim psample sctp
| [   41.537362][  T609] Tainted: [W]=WARN
[   41.537543][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.537820][ T609] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 41.538115][ T609] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   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 d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[   41.538845][  T609] RSP: 0018:ffffc90000e97528 EFLAGS: 00010246
[   41.539109][  T609] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   41.539424][  T609] RDX: 0000000000000000 RSI: ffff888005bf2cd0 RDI: ffff88800cf450f8
[   41.539732][  T609] RBP: ffffffffabc53580 R08: 0000000000000000 R09: fffffbfff5342504
[   41.540057][  T609] R10: ffffffffa9a12827 R11: ffff88800cf445c0 R12: 0000000000000000
[   41.540377][  T609] R13: ffff888005bf2130 R14: ffff888005bf2008 R15: ffff888005bf2000
[   41.540828][  T609] FS:  00007f4bec1e41c0(0000) GS:ffff88806cf80000(0000) knlGS:0000000000000000
[   41.541192][  T609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.541464][  T609] CR2: 00007f4bdebb1810 CR3: 000000000ce98005 CR4: 0000000000772ef0
[   41.541776][  T609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   41.542078][  T609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   41.542380][  T609] PKRU: 55555554
[   41.542534][  T609] Call Trace:
[   41.542697][  T609]  <TASK>
[ 41.542823][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 41.543063][ T609] ? __warn (kernel/panic.c:748) 
[ 41.543229][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 41.543441][ T609] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 41.543672][ T609] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 41.543834][ T609] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 41.544055][ T609] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 41.544275][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 41.544482][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 41.544702][ T609] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 41.544962][ T609] ? _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) 
[ 41.545181][ T609] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 41.545398][ T609] register_netdevice (net/core/dev.c:11003) 
[ 41.545618][ T609] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 41.545822][ T609] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 41.546044][ T609] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 41.546265][ T609] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 41.546523][ T609] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 41.546691][ T609] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 41.546966][ T609] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 41.547227][ T609] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 41.547491][ T609] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 41.547719][ T609] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 41.547978][ T609] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 41.548186][ T609] ? 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)) 
[ 41.548342][ T609] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 41.548558][ T609] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 41.548785][ T609] __driver_probe_device (drivers/base/dd.c:800) 
[ 41.548993][ T609] driver_probe_device (drivers/base/dd.c:830) 
[ 41.549198][ T609] __device_attach_driver (drivers/base/dd.c:959) 
[ 41.549426][ T609] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 41.549693][ T609] bus_for_each_drv (drivers/base/bus.c:462) 
[ 41.549907][ T609] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 41.550228][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 41.550443][ T609] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 41.550665][ T609] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 41.550882][ T609] __device_attach (drivers/base/dd.c:1030) 
[ 41.551092][ T609] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 41.551301][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 41.551519][ T609] ? 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) 
[ 41.551765][ T609] bus_probe_device (drivers/base/bus.c:537) 
[ 41.551978][ T609] device_add (drivers/base/core.c:3672) 
[ 41.552196][ T609] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 41.552402][ T609] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 41.552635][ T609] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 41.552918][ T609] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 41.553183][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 41.553415][ T609] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 41.553640][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 41.553846][ T609] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 41.554060][ T609] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 41.554228][ T609] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 41.554441][ T609] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 41.554666][ T609] ? 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) 
[ 41.554886][ T609] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 41.555097][ T609] ksys_write (fs/read_write.c:731) 
[ 41.555254][ T609] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 41.555454][ T609] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 41.555676][ T609] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 41.555885][ T609] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.556159][  T609] RIP: 0033:0x7f4bec3feb77
[ 41.556376][ T609] 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
[   41.557093][  T609] RSP: 002b:00007ffde1038ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   41.557404][  T609] RAX: ffffffffffffffda RBX: 00007f4bec1e4140 RCX: 00007f4bec3feb77
[   41.557725][  T609] RDX: 0000000000000009 RSI: 000055c304e304b0 RDI: 0000000000000005
[   41.558041][  T609] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[   41.558339][  T609] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f4bde081700
[   41.558648][  T609] R13: 000055c304e304b0 R14: 0000000000000005 R15: 000055c304967910
| [   80.287900][  T609] ------------[ cut here ]------------
| [ 80.288332][ T609] WARNING: CPU: 2 PID: 609 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) 
| [   80.288791][  T609] Modules linked in: cls_bpf sch_ingress netdevsim psample sctp
| [   80.289502][  T609] Tainted: [W]=WARN
[   80.289686][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 80.289954][ T609] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 80.290238][ T609] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   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 d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[   80.290980][  T609] RSP: 0018:ffffc90000e97528 EFLAGS: 00010246
[   80.291256][  T609] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   80.291583][  T609] RDX: 0000000000000000 RSI: ffff888010262cd0 RDI: ffff88800cf450f8
[   80.291904][  T609] RBP: ffffffffabc53580 R08: 0000000000000000 R09: fffffbfff5342504
[   80.292402][  T609] R10: ffffffffa9a12827 R11: ffff88800cf445c0 R12: 0000000000000000
[   80.292760][  T609] R13: ffff888010262130 R14: ffff888010262008 R15: ffff888010262000
[   80.293077][  T609] FS:  00007f4bec1e41c0(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[   80.293446][  T609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   80.293732][  T609] CR2: 00007f4bdebb1810 CR3: 000000000ce98004 CR4: 0000000000772ef0
[   80.294051][  T609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   80.294369][  T609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   80.294695][  T609] PKRU: 55555554
[   80.294865][  T609] Call Trace:
[   80.295031][  T609]  <TASK>
[ 80.295156][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 80.295375][ T609] ? __warn (kernel/panic.c:748) 
[ 80.295548][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 80.295786][ T609] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 80.296017][ T609] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 80.296190][ T609] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 80.296409][ T609] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 80.296654][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 80.296874][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 80.297098][ T609] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 80.297373][ T609] ? _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) 
[ 80.297609][ T609] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 80.297836][ T609] register_netdevice (net/core/dev.c:11003) 
[ 80.298063][ T609] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 80.298279][ T609] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 80.298518][ T609] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 80.298764][ T609] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 80.299042][ T609] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 80.299215][ T609] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 80.299497][ T609] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 80.299783][ T609] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 80.300080][ T609] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 80.300315][ T609] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 80.300602][ T609] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 80.300826][ T609] ? 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)) 
[ 80.300999][ T609] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 80.301224][ T609] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 80.301450][ T609] __driver_probe_device (drivers/base/dd.c:800) 
[ 80.301714][ T609] driver_probe_device (drivers/base/dd.c:830) 
[ 80.301934][ T609] __device_attach_driver (drivers/base/dd.c:959) 
[ 80.302155][ T609] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 80.302417][ T609] bus_for_each_drv (drivers/base/bus.c:462) 
[ 80.302645][ T609] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 80.302859][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 80.303076][ T609] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 80.303297][ T609] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 80.303523][ T609] __device_attach (drivers/base/dd.c:1030) 
[ 80.303753][ T609] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 80.303969][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 80.304184][ T609] ? 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) 
[ 80.304411][ T609] bus_probe_device (drivers/base/bus.c:537) 
[ 80.304640][ T609] device_add (drivers/base/core.c:3672) 
[ 80.304867][ T609] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 80.305082][ T609] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 80.305314][ T609] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 80.305603][ T609] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 80.305883][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 80.306096][ T609] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 80.306320][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 80.306540][ T609] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 80.306778][ T609] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 80.306958][ T609] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 80.307179][ T609] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 80.307394][ T609] ? 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) 
[ 80.307634][ T609] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 80.307859][ T609] ksys_write (fs/read_write.c:731) 
[ 80.308034][ T609] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 80.308251][ T609] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 80.308477][ T609] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 80.308708][ T609] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   80.308971][  T609] RIP: 0033:0x7f4bec3feb77
[ 80.309194][ T609] 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
[   80.309919][  T609] RSP: 002b:00007ffde1038ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   80.310246][  T609] RAX: ffffffffffffffda RBX: 00007f4bec1e4140 RCX: 00007f4bec3feb77
[   80.310568][  T609] RDX: 0000000000000008 RSI: 000055c304e351b0 RDI: 0000000000000005
[   80.310882][  T609] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[   80.311199][  T609] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f4bde081700
[   80.311511][  T609] R13: 000055c304e351b0 R14: 0000000000000005 R15: 000055c304967910
| [   92.436309][  T609] ------------[ cut here ]------------
| [ 92.436709][ T609] WARNING: CPU: 2 PID: 609 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) 
| [   92.437149][  T609] Modules linked in: cls_bpf sch_ingress netdevsim psample sctp
| [   92.437895][  T609] Tainted: [W]=WARN
[   92.438071][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 92.438340][ T609] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 92.438627][ T609] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   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 d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[   92.439360][  T609] RSP: 0018:ffffc90000e97528 EFLAGS: 00010246
[   92.439847][  T609] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   92.440189][  T609] RDX: 0000000000000000 RSI: ffff88801026acd0 RDI: ffff88800cf450f8
[   92.440515][  T609] RBP: ffffffffabc53580 R08: 0000000000000000 R09: fffffbfff5342504
[   92.440847][  T609] R10: ffffffffa9a12827 R11: ffff88800cf445c0 R12: 0000000000000000
[   92.441169][  T609] R13: ffff88801026a130 R14: ffff88801026a008 R15: ffff88801026a000
[   92.441486][  T609] FS:  00007f4bec1e41c0(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[   92.441869][  T609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   92.442145][  T609] CR2: 00007f4bdebb1810 CR3: 000000000ce98003 CR4: 0000000000772ef0
[   92.442476][  T609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   92.442802][  T609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   92.443117][  T609] PKRU: 55555554
[   92.443288][  T609] Call Trace:
[   92.443456][  T609]  <TASK>
[ 92.443587][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 92.443809][ T609] ? __warn (kernel/panic.c:748) 
[ 92.443989][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 92.444209][ T609] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 92.444432][ T609] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 92.444620][ T609] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 92.444843][ T609] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 92.445082][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 92.445301][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 92.445534][ T609] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 92.445823][ T609] ? _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) 
[ 92.446050][ T609] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 92.446282][ T609] register_netdevice (net/core/dev.c:11003) 
[ 92.446510][ T609] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 92.446739][ T609] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 92.446977][ T609] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 92.447214][ T609] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 92.447489][ T609] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 92.447674][ T609] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 92.447960][ T609] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 92.448240][ T609] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 92.448517][ T609] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 92.448763][ T609] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 92.449039][ T609] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 92.449294][ T609] ? 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)) 
[ 92.449466][ T609] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 92.449714][ T609] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 92.449946][ T609] __driver_probe_device (drivers/base/dd.c:800) 
[ 92.450174][ T609] driver_probe_device (drivers/base/dd.c:830) 
[ 92.450394][ T609] __device_attach_driver (drivers/base/dd.c:959) 
[ 92.450630][ T609] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 92.450899][ T609] bus_for_each_drv (drivers/base/bus.c:462) 
[ 92.451122][ T609] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 92.451341][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 92.451569][ T609] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 92.451788][ T609] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 92.452012][ T609] __device_attach (drivers/base/dd.c:1030) 
[ 92.452228][ T609] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 92.452450][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 92.452677][ T609] ? 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) 
[ 92.452905][ T609] bus_probe_device (drivers/base/bus.c:537) 
[ 92.453126][ T609] device_add (drivers/base/core.c:3672) 
[ 92.453345][ T609] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 92.453575][ T609] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 92.453807][ T609] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 92.454092][ T609] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 92.454371][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 92.454597][ T609] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 92.454821][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 92.455035][ T609] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 92.455259][ T609] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 92.455437][ T609] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 92.455676][ T609] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 92.455893][ T609] ? 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) 
[ 92.456118][ T609] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 92.456345][ T609] ksys_write (fs/read_write.c:731) 
[ 92.456516][ T609] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 92.456743][ T609] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 92.456971][ T609] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 92.457197][ T609] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   92.457469][  T609] RIP: 0033:0x7f4bec3feb77
[ 92.457702][ T609] 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
[   92.458415][  T609] RSP: 002b:00007ffde1038ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   92.458746][  T609] RAX: ffffffffffffffda RBX: 00007f4bec1e4140 RCX: 00007f4bec3feb77
[   92.459061][  T609] RDX: 0000000000000009 RSI: 000055c304e351b0 RDI: 0000000000000005
[   92.459372][  T609] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[   92.459695][  T609] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f4bde081700
[   92.460019][  T609] R13: 000055c304e351b0 R14: 0000000000000005 R15: 000055c304967910
| [  121.501221][  T609] ------------[ cut here ]------------
| [ 121.501550][ T609] WARNING: CPU: 0 PID: 609 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) 
| [  121.502005][  T609] Modules linked in: cls_bpf sch_ingress netdevsim psample sctp
| [  121.502768][  T609] Tainted: [W]=WARN
[  121.502953][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 121.503231][ T609] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 121.503516][ T609] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   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 d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[  121.504312][  T609] RSP: 0018:ffffc90000e97528 EFLAGS: 00010246
[  121.504598][  T609] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  121.504920][  T609] RDX: 0000000000000000 RSI: ffff888010b72cd0 RDI: ffff88800cf450f8
[  121.505244][  T609] RBP: ffffffffabc53580 R08: 0000000000000000 R09: fffffbfff5342504
[  121.505723][  T609] R10: ffffffffa9a12827 R11: ffff88800cf445c0 R12: 0000000000000000
[  121.506040][  T609] R13: ffff888010b72130 R14: ffff888010b72008 R15: ffff888010b72000
[  121.506369][  T609] FS:  00007f4bec1e41c0(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[  121.506752][  T609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  121.507023][  T609] CR2: 00007f4bdec44f30 CR3: 000000000ce98002 CR4: 0000000000772ef0
[  121.507357][  T609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  121.507688][  T609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  121.508012][  T609] PKRU: 55555554
[  121.508179][  T609] Call Trace:
[  121.508346][  T609]  <TASK>
[ 121.508459][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 121.508689][ T609] ? __warn (kernel/panic.c:748) 
[ 121.508859][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 121.509084][ T609] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 121.509308][ T609] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 121.509478][ T609] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 121.509729][ T609] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 121.509991][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 121.510217][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 121.510449][ T609] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 121.510742][ T609] ? _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) 
[ 121.510975][ T609] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 121.511207][ T609] register_netdevice (net/core/dev.c:11003) 
[ 121.511434][ T609] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 121.511672][ T609] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 121.511907][ T609] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 121.512146][ T609] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 121.512428][ T609] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 121.512609][ T609] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 121.512901][ T609] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 121.513202][ T609] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 121.513490][ T609] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 121.513731][ T609] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 121.514017][ T609] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 121.514246][ T609] ? 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)) 
[ 121.514413][ T609] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 121.514655][ T609] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 121.514901][ T609] __driver_probe_device (drivers/base/dd.c:800) 
[ 121.515139][ T609] driver_probe_device (drivers/base/dd.c:830) 
[ 121.515386][ T609] __device_attach_driver (drivers/base/dd.c:959) 
[ 121.515623][ T609] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 121.515892][ T609] bus_for_each_drv (drivers/base/bus.c:462) 
[ 121.516113][ T609] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 121.516329][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 121.516553][ T609] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 121.516781][ T609] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 121.517008][ T609] __device_attach (drivers/base/dd.c:1030) 
[ 121.517223][ T609] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 121.517445][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 121.517671][ T609] ? 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) 
[ 121.517899][ T609] bus_probe_device (drivers/base/bus.c:537) 
[ 121.518122][ T609] device_add (drivers/base/core.c:3672) 
[ 121.518360][ T609] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 121.518590][ T609] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 121.518830][ T609] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 121.519121][ T609] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 121.519410][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 121.519648][ T609] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 121.519897][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 121.520114][ T609] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 121.520348][ T609] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 121.520524][ T609] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 121.520757][ T609] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 121.520996][ T609] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:885) 
[ 121.521283][ T609] ksys_write (fs/read_write.c:731) 
[ 121.521450][ T609] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 121.521677][ T609] ? kernfs_fop_llseek (fs/kernfs/file.c:891) 
[ 121.521906][ T609] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 121.522125][ T609] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  121.522394][  T609] RIP: 0033:0x7f4bec3feb77
[ 121.522622][ T609] 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
[  121.523385][  T609] RSP: 002b:00007ffde1038ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  121.523727][  T609] RAX: ffffffffffffffda RBX: 00007f4bec1e4140 RCX: 00007f4bec3feb77
[  121.524051][  T609] RDX: 0000000000000008 RSI: 000055c304e379b0 RDI: 0000000000000005
[  121.524372][  T609] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[  121.524711][  T609] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f4bde081700
[  121.525061][  T609] R13: 000055c304e379b0 R14: 0000000000000005 R15: 000055c304967910
| [  136.739590][  T609] ------------[ cut here ]------------
| [ 136.739937][ T609] WARNING: CPU: 1 PID: 609 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) 
| [  136.740481][  T609] Modules linked in: cls_bpf sch_ingress netdevsim psample sctp
| [  136.741252][  T609] Tainted: [W]=WARN
[  136.741418][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 136.741698][ T609] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 136.741978][ T609] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   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 d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[  136.742745][  T609] RSP: 0018:ffffc90000e97528 EFLAGS: 00010246
[  136.743024][  T609] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  136.743363][  T609] RDX: 0000000000000000 RSI: ffff88800d62acd0 RDI: ffff88800cf450f8
[  136.743693][  T609] RBP: ffffffffabc53580 R08: 0000000000000000 R09: fffffbfff5342504
[  136.744017][  T609] R10: ffffffffa9a12827 R11: ffff88800cf445c0 R12: 0000000000000000
[  136.744342][  T609] R13: ffff88800d62a130 R14: ffff88800d62a008 R15: ffff88800d62a000
[  136.744682][  T609] FS:  00007f4bec1e41c0(0000) GS:ffff88806ce80000(0000) knlGS:0000000000000000
[  136.745064][  T609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  136.745334][  T609] CR2: 00007fb1eee6eb60 CR3: 000000000ce98006 CR4: 0000000000772ef0
[  136.745671][  T609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  136.746001][  T609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  136.746320][  T609] PKRU: 55555554
[  136.746493][  T609] Call Trace:
[  136.746668][  T609]  <TASK>
[ 136.746784][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 136.747001][ T609] ? __warn (kernel/panic.c:748) 
[ 136.747173][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 136.747396][ T609] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 136.747634][ T609] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 136.747797][ T609] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 136.748013][ T609] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 136.748247][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 136.748471][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 136.748706][ T609] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 136.748986][ T609] ? _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) 
[ 136.749215][ T609] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 136.749444][ T609] register_netdevice (net/core/dev.c:11003) 
[ 136.749698][ T609] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 136.749927][ T609] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 136.750168][ T609] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 136.750411][ T609] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 136.750713][ T609] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 136.750889][ T609] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 136.751184][ T609] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 136.751473][ T609] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 136.751770][ T609] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 136.752002][ T609] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 136.752292][ T609] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 136.752524][ T609] ? 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)) 
[ 136.752715][ T609] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 136.752950][ T609] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 136.753185][ T609] __driver_probe_device (drivers/base/dd.c:800) 
[ 136.753413][ T609] driver_probe_device (drivers/base/dd.c:830) 
[ 136.753648][ T609] __device_attach_driver (drivers/base/dd.c:959) 
[ 136.753879][ T609] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 136.754156][ T609] bus_for_each_drv (drivers/base/bus.c:462) 
[ 136.754377][ T609] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 136.754607][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 136.754824][ T609] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 136.755045][ T609] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 136.755267][ T609] __device_attach (drivers/base/dd.c:1030) 
[ 136.755506][ T609] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 136.755744][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 136.755967][ T609] ? 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) 
[ 136.756194][ T609] bus_probe_device (drivers/base/bus.c:537) 
[ 136.756421][ T609] device_add (drivers/base/core.c:3672) 
[ 136.756653][ T609] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 136.756873][ T609] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 136.757108][ T609] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 136.757398][ T609] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 136.757712][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 136.757931][ T609] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 136.758154][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 136.758390][ T609] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 136.758633][ T609] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 136.758814][ T609] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 136.759040][ T609] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 136.759277][ T609] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:885) 
[ 136.759573][ T609] ksys_write (fs/read_write.c:731) 
[ 136.759771][ T609] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 136.759992][ T609] ? kernfs_fop_llseek (fs/kernfs/file.c:891) 
[ 136.760226][ T609] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 136.760452][ T609] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  136.760739][  T609] RIP: 0033:0x7f4bec3feb77
[ 136.760965][ T609] 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
[  136.761752][  T609] RSP: 002b:00007ffde1038d48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  136.762078][  T609] RAX: ffffffffffffffda RBX: 00007f4bec1e4140 RCX: 00007f4bec3feb77
[  136.762423][  T609] RDX: 0000000000000009 RSI: 000055c304e379b0 RDI: 0000000000000005
[  136.762760][  T609] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  136.763086][  T609] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f4bde081940
[  136.763413][  T609] R13: 000055c304e379b0 R14: 0000000000000005 R15: 000055c304967910
| [  149.079828][  T609] ------------[ cut here ]------------
| [ 149.080193][ T609] WARNING: CPU: 2 PID: 609 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) 
| [  149.080690][  T609] Modules linked in: cls_bpf sch_ingress netdevsim psample sctp
| [  149.081459][  T609] Tainted: [W]=WARN
[  149.081666][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 149.081949][ T609] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 149.082245][ T609] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   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 d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[  149.083051][  T609] RSP: 0018:ffffc90000e97528 EFLAGS: 00010246
[  149.083346][  T609] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  149.083692][  T609] RDX: 0000000000000000 RSI: ffff888010262cd0 RDI: ffff88800cf450f8
[  149.084031][  T609] RBP: ffffffffabc53580 R08: 0000000000000000 R09: fffffbfff5342504
[  149.084368][  T609] R10: ffffffffa9a12827 R11: ffff88800cf445c0 R12: 0000000000000000
[  149.084729][  T609] R13: ffff888010262130 R14: ffff888010262008 R15: ffff888010262000
[  149.085061][  T609] FS:  00007f4bec1e41c0(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[  149.085442][  T609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  149.085734][  T609] CR2: 00007f4bdec22d60 CR3: 000000000ce98005 CR4: 0000000000772ef0
[  149.086076][  T609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  149.086535][  T609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  149.086890][  T609] PKRU: 55555554
[  149.087072][  T609] Call Trace:
[  149.087254][  T609]  <TASK>
[ 149.087382][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 149.087626][ T609] ? __warn (kernel/panic.c:748) 
[ 149.087815][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 149.088050][ T609] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 149.088290][ T609] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 149.088481][ T609] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 149.088740][ T609] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 149.088987][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 149.089226][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 149.089477][ T609] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 149.089794][ T609] ? _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) 
[ 149.090031][ T609] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 149.090268][ T609] register_netdevice (net/core/dev.c:11003) 
[ 149.090508][ T609] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 149.090748][ T609] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 149.091004][ T609] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 149.091266][ T609] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 149.091576][ T609] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 149.091762][ T609] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 149.092063][ T609] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 149.092364][ T609] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 149.092686][ T609] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 149.092953][ T609] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 149.093247][ T609] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 149.093484][ T609] ? 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)) 
[ 149.093680][ T609] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 149.093923][ T609] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 149.094173][ T609] __driver_probe_device (drivers/base/dd.c:800) 
[ 149.094405][ T609] driver_probe_device (drivers/base/dd.c:830) 
[ 149.094649][ T609] __device_attach_driver (drivers/base/dd.c:959) 
[ 149.094879][ T609] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 149.095156][ T609] bus_for_each_drv (drivers/base/bus.c:462) 
[ 149.095385][ T609] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 149.095624][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 149.095851][ T609] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 149.096078][ T609] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 149.096315][ T609] __device_attach (drivers/base/dd.c:1030) 
[ 149.096541][ T609] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 149.096780][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 149.097026][ T609] ? 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) 
[ 149.097267][ T609] bus_probe_device (drivers/base/bus.c:537) 
[ 149.097500][ T609] device_add (drivers/base/core.c:3672) 
[ 149.097746][ T609] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 149.097979][ T609] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 149.098234][ T609] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 149.098530][ T609] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 149.098854][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 149.099085][ T609] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 149.099324][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 149.099553][ T609] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 149.099825][ T609] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 149.100013][ T609] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 149.100250][ T609] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 149.100494][ T609] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:885) 
[ 149.100802][ T609] ksys_write (fs/read_write.c:731) 
[ 149.100989][ T609] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 149.101217][ T609] ? kernfs_fop_llseek (fs/kernfs/file.c:891) 
[ 149.101459][ T609] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 149.101700][ T609] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  149.101978][  T609] RIP: 0033:0x7f4bec3feb77
[ 149.102207][ T609] 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
[  149.102985][  T609] RSP: 002b:00007ffde1038d48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  149.103326][  T609] RAX: ffffffffffffffda RBX: 00007f4bec1e4140 RCX: 00007f4bec3feb77
[  149.103675][  T609] RDX: 0000000000000009 RSI: 000055c304e379b0 RDI: 0000000000000005
[  149.104018][  T609] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  149.104346][  T609] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f4bde081940
[  149.104689][  T609] R13: 000055c304e379b0 R14: 0000000000000005 R15: 000055c304967910
| [  161.478193][  T609] ------------[ cut here ]------------
| [ 161.478510][ T609] WARNING: CPU: 0 PID: 609 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) 
| [  161.478938][  T609] Modules linked in: cls_bpf sch_ingress netdevsim psample sctp
| [  161.479701][  T609] Tainted: [W]=WARN
[  161.479876][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 161.480149][ T609] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.480430][ T609] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   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 d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[  161.481217][  T609] RSP: 0018:ffffc90000e97528 EFLAGS: 00010246
[  161.481507][  T609] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  161.481840][  T609] RDX: 0000000000000000 RSI: ffff888010b72cd0 RDI: ffff88800cf450f8
[  161.482160][  T609] RBP: ffffffffabc53580 R08: 0000000000000000 R09: fffffbfff5342504
[  161.482490][  T609] R10: ffffffffa9a12827 R11: ffff88800cf445c0 R12: 0000000000000000
[  161.482834][  T609] R13: ffff888010b72130 R14: ffff888010b72008 R15: ffff888010b72000
[  161.483168][  T609] FS:  00007f4bec1e41c0(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[  161.483573][  T609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  161.483855][  T609] CR2: 00007f4bdec22d60 CR3: 000000000ce98005 CR4: 0000000000772ef0
[  161.484181][  T609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  161.484614][  T609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  161.484941][  T609] PKRU: 55555554
[  161.485130][  T609] Call Trace:
[  161.485294][  T609]  <TASK>
[ 161.485407][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.485636][ T609] ? __warn (kernel/panic.c:748) 
[ 161.485804][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.486021][ T609] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 161.486245][ T609] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 161.486429][ T609] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 161.486665][ T609] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 161.486902][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 161.487126][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 161.487355][ T609] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 161.487655][ T609] ? _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) 
[ 161.487877][ T609] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 161.488103][ T609] register_netdevice (net/core/dev.c:11003) 
[ 161.488332][ T609] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 161.488549][ T609] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 161.488789][ T609] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 161.489026][ T609] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 161.489304][ T609] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 161.489472][ T609] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 161.489831][ T609] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 161.490114][ T609] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 161.490399][ T609] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 161.490642][ T609] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 161.490927][ T609] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 161.491149][ T609] ? 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)) 
[ 161.491319][ T609] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 161.491550][ T609] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 161.491786][ T609] __driver_probe_device (drivers/base/dd.c:800) 
[ 161.492006][ T609] driver_probe_device (drivers/base/dd.c:830) 
[ 161.492224][ T609] __device_attach_driver (drivers/base/dd.c:959) 
[ 161.492444][ T609] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 161.492738][ T609] bus_for_each_drv (drivers/base/bus.c:462) 
[ 161.492986][ T609] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 161.493209][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 161.493436][ T609] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 161.493670][ T609] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 161.493905][ T609] __device_attach (drivers/base/dd.c:1030) 
[ 161.494133][ T609] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 161.494351][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 161.494578][ T609] ? 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) 
[ 161.494809][ T609] bus_probe_device (drivers/base/bus.c:537) 
[ 161.495029][ T609] device_add (drivers/base/core.c:3672) 
[ 161.495250][ T609] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 161.495467][ T609] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 161.495698][ T609] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 161.495976][ T609] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 161.496262][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 161.496494][ T609] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 161.496732][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 161.496950][ T609] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 161.497178][ T609] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 161.497358][ T609] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 161.497588][ T609] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 161.497834][ T609] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:885) 
[ 161.498115][ T609] ksys_write (fs/read_write.c:731) 
[ 161.498281][ T609] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 161.498500][ T609] ? kernfs_fop_llseek (fs/kernfs/file.c:891) 
[ 161.498736][ T609] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 161.498956][ T609] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  161.499237][  T609] RIP: 0033:0x7f4bec3feb77
[ 161.499462][ T609] 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
[  161.500258][  T609] RSP: 002b:00007ffde1038d48 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  161.500597][  T609] RAX: ffffffffffffffda RBX: 00007f4bec1e4140 RCX: 00007f4bec3feb77
[  161.500920][  T609] RDX: 0000000000000009 RSI: 000055c304e379b0 RDI: 0000000000000005
[  161.501250][  T609] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  161.501590][  T609] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f4bde081940
[  161.501914][  T609] R13: 000055c304e379b0 R14: 0000000000000005 R15: 000055c304967910
| [  186.702012][  T609] ------------[ cut here ]------------
| [ 186.702399][ T609] WARNING: CPU: 1 PID: 609 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) 
| [  186.702953][  T609] Modules linked in: cls_bpf sch_ingress netdevsim psample sctp
| [  186.703812][  T609] Tainted: [W]=WARN
[  186.704005][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 186.704317][ T609] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.704647][ T609] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   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 d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[  186.705503][  T609] RSP: 0018:ffffc90000e97528 EFLAGS: 00010246
[  186.705829][  T609] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  186.706200][  T609] RDX: 0000000000000000 RSI: ffff88800ffcacd0 RDI: ffff88800cf450f8
[  186.706602][  T609] RBP: ffffffffabc53580 R08: 0000000000000000 R09: fffffbfff5342504
[  186.706978][  T609] R10: ffffffffa9a12827 R11: ffff88800cf445c0 R12: 0000000000000000
[  186.707341][  T609] R13: ffff88800ffca130 R14: ffff88800ffca008 R15: ffff88800ffca000
[  186.707711][  T609] FS:  00007f4bec1e41c0(0000) GS:ffff88806ce80000(0000) knlGS:0000000000000000
[  186.708150][  T609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  186.708469][  T609] CR2: 00007f4bdebb1810 CR3: 000000000ce98004 CR4: 0000000000772ef0
[  186.708857][  T609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  186.709236][  T609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  186.709641][  T609] PKRU: 55555554
[  186.709994][  T609] Call Trace:
[  186.710188][  T609]  <TASK>
[ 186.710320][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.710595][ T609] ? __warn (kernel/panic.c:748) 
[ 186.710795][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.711053][ T609] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 186.711302][ T609] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 186.711511][ T609] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 186.711776][ T609] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 186.712048][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 186.712293][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 186.712544][ T609] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 186.712873][ T609] ? _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) 
[ 186.713125][ T609] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 186.713376][ T609] register_netdevice (net/core/dev.c:11003) 
[ 186.713656][ T609] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 186.713919][ T609] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 186.714201][ T609] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 186.714466][ T609] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 186.714811][ T609] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 186.715010][ T609] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 186.715349][ T609] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 186.715653][ T609] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 186.715949][ T609] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 186.716223][ T609] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 186.716515][ T609] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 186.716761][ T609] ? 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)) 
[ 186.716939][ T609] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 186.717180][ T609] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 186.717417][ T609] __driver_probe_device (drivers/base/dd.c:800) 
[ 186.717682][ T609] driver_probe_device (drivers/base/dd.c:830) 
[ 186.717933][ T609] __device_attach_driver (drivers/base/dd.c:959) 
[ 186.718178][ T609] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 186.718498][ T609] bus_for_each_drv (drivers/base/bus.c:462) 
[ 186.718756][ T609] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 186.718998][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 186.719227][ T609] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 186.719456][ T609] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 186.719753][ T609] __device_attach (drivers/base/dd.c:1030) 
[ 186.720006][ T609] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 186.720254][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 186.720500][ T609] ? 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) 
[ 186.720794][ T609] bus_probe_device (drivers/base/bus.c:537) 
[ 186.721042][ T609] device_add (drivers/base/core.c:3672) 
[ 186.721288][ T609] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 186.721534][ T609] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 186.721824][ T609] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 186.722144][ T609] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 186.722464][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 186.722722][ T609] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 186.722983][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 186.723240][ T609] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 186.723500][ T609] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 186.723715][ T609] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 186.723962][ T609] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 186.724203][ T609] ? 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) 
[ 186.724482][ T609] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 186.724744][ T609] ksys_write (fs/read_write.c:731) 
[ 186.724931][ T609] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 186.725169][ T609] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 186.725424][ T609] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 186.725699][ T609] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  186.726009][  T609] RIP: 0033:0x7f4bec3feb77
[ 186.726260][ T609] 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
[  186.727130][  T609] RSP: 002b:00007ffde1038ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  186.727492][  T609] RAX: ffffffffffffffda RBX: 00007f4bec1e4140 RCX: 00007f4bec3feb77
[  186.727859][  T609] RDX: 0000000000000009 RSI: 000055c304e379b0 RDI: 0000000000000005
[  186.728215][  T609] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  186.728590][  T609] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f4bde081940
[  186.728953][  T609] R13: 000055c304e379b0 R14: 0000000000000005 R15: 000055c304967910
| [  215.395139][  T609] ------------[ cut here ]------------
| [ 215.395491][ T609] WARNING: CPU: 3 PID: 609 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) 
| [  215.396652][  T609] Modules linked in: cls_bpf sch_ingress netdevsim psample sctp
| [  215.397447][  T609] Tainted: [W]=WARN
[  215.397643][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 215.397938][ T609] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 215.398245][ T609] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   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 d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[  215.399090][  T609] RSP: 0018:ffffc90000e97528 EFLAGS: 00010246
[  215.399425][  T609] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  215.399836][  T609] RDX: 0000000000000000 RSI: ffff888002492cd0 RDI: ffff88800cf450f8
[  215.400345][  T609] RBP: ffffffffabc53580 R08: 0000000000000000 R09: fffffbfff5342504
[  215.400739][  T609] R10: ffffffffa9a12827 R11: ffff88800cf445c0 R12: 0000000000000000
[  215.401113][  T609] R13: ffff888002492130 R14: ffff888002492008 R15: ffff888002492000
[  215.401462][  T609] FS:  00007f4bec1e41c0(0000) GS:ffff88806cf80000(0000) knlGS:0000000000000000
[  215.401906][  T609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  215.402206][  T609] CR2: 00007f4bdebb1810 CR3: 000000000ce98005 CR4: 0000000000772ef0
[  215.402578][  T609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  215.402935][  T609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  215.403293][  T609] PKRU: 55555554
[  215.403476][  T609] Call Trace:
[  215.403668][  T609]  <TASK>
[ 215.403791][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 215.404028][ T609] ? __warn (kernel/panic.c:748) 
[ 215.404212][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 215.404459][ T609] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 215.404742][ T609] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 215.404930][ T609] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 215.405170][ T609] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 215.405431][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 215.405686][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 215.405933][ T609] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 215.406243][ T609] ? _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) 
[ 215.406495][ T609] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 215.406765][ T609] register_netdevice (net/core/dev.c:11003) 
[ 215.407019][ T609] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 215.407268][ T609] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 215.407524][ T609] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 215.407973][ T609] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 215.408298][ T609] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 215.408489][ T609] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 215.408818][ T609] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 215.409128][ T609] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 215.409464][ T609] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 215.409814][ T609] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 215.410160][ T609] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 215.410410][ T609] ? 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)) 
[ 215.410641][ T609] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 215.411034][ T609] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 215.411283][ T609] __driver_probe_device (drivers/base/dd.c:800) 
[ 215.411528][ T609] driver_probe_device (drivers/base/dd.c:830) 
[ 215.411785][ T609] __device_attach_driver (drivers/base/dd.c:959) 
[ 215.412157][ T609] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 215.412449][ T609] bus_for_each_drv (drivers/base/bus.c:462) 
[ 215.412704][ T609] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 215.412946][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 215.413311][ T609] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 215.413552][ T609] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 215.413810][ T609] __device_attach (drivers/base/dd.c:1030) 
[ 215.414053][ T609] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 215.414422][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 215.414700][ T609] ? 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) 
[ 215.414956][ T609] bus_probe_device (drivers/base/bus.c:537) 
[ 215.415207][ T609] device_add (drivers/base/core.c:3672) 
[ 215.415594][ T609] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 215.415837][ T609] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 215.416088][ T609] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 215.416400][ T609] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 215.416856][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 215.417094][ T609] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 215.417336][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 215.417712][ T609] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 215.418007][ T609] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 215.418198][ T609] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 215.418445][ T609] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 215.418818][ T609] ? 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) 
[ 215.419069][ T609] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 215.419317][ T609] ksys_write (fs/read_write.c:731) 
[ 215.419532][ T609] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 215.419817][ T609] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 215.420213][ T609] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 215.420459][ T609] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  215.420769][  T609] RIP: 0033:0x7f4bec3feb77
[ 215.421023][ T609] 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
[  215.421953][  T609] RSP: 002b:00007ffde1038ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  215.422420][  T609] RAX: ffffffffffffffda RBX: 00007f4bec1e4140 RCX: 00007f4bec3feb77
[  215.422758][  T609] RDX: 0000000000000009 RSI: 000055c304e30df0 RDI: 0000000000000005
[  215.423086][  T609] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  215.423539][  T609] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f4bde081940
[  215.423877][  T609] R13: 000055c304e30df0 R14: 0000000000000005 R15: 000055c304967910
| [  241.305327][  T609] ------------[ cut here ]------------
| [ 241.305755][ T609] WARNING: CPU: 1 PID: 609 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) 
| [  241.306175][  T609] Modules linked in: cls_bpf sch_ingress netdevsim psample sctp
| [  241.306883][  T609] Tainted: [W]=WARN
[  241.307044][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 241.307305][ T609] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 241.307585][ T609] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   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 d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[  241.308305][  T609] RSP: 0018:ffffc90000e97528 EFLAGS: 00010246
[  241.308580][  T609] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  241.308890][  T609] RDX: 0000000000000000 RSI: ffff88800ffbacd0 RDI: ffff88800cf450f8
[  241.309196][  T609] RBP: ffffffffabc53580 R08: 0000000000000000 R09: fffffbfff5342504
[  241.309511][  T609] R10: ffffffffa9a12827 R11: ffff88800cf445c0 R12: 0000000000000000
[  241.309831][  T609] R13: ffff88800ffba130 R14: ffff88800ffba008 R15: ffff88800ffba000
[  241.310143][  T609] FS:  00007f4bec1e41c0(0000) GS:ffff88806ce80000(0000) knlGS:0000000000000000
[  241.310500][  T609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  241.310770][  T609] CR2: 00007f4bde026a00 CR3: 000000000ce98004 CR4: 0000000000772ef0
[  241.311079][  T609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  241.311493][  T609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  241.311830][  T609] PKRU: 55555554
[  241.311990][  T609] Call Trace:
[  241.312152][  T609]  <TASK>
[ 241.312261][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 241.312476][ T609] ? __warn (kernel/panic.c:748) 
[ 241.312653][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 241.312866][ T609] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 241.313079][ T609] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 241.313241][ T609] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 241.313447][ T609] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 241.313682][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 241.313894][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 241.314105][ T609] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 241.314369][ T609] ? _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) 
[ 241.314591][ T609] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 241.314809][ T609] register_netdevice (net/core/dev.c:11003) 
[ 241.315024][ T609] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 241.315230][ T609] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 241.315448][ T609] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 241.315684][ T609] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 241.315949][ T609] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 241.316109][ T609] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 241.316382][ T609] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 241.316657][ T609] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 241.316925][ T609] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 241.317145][ T609] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 241.317406][ T609] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 241.317626][ T609] ? 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)) 
[ 241.317787][ T609] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 241.318006][ T609] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 241.318220][ T609] __driver_probe_device (drivers/base/dd.c:800) 
[ 241.318432][ T609] driver_probe_device (drivers/base/dd.c:830) 
[ 241.318649][ T609] __device_attach_driver (drivers/base/dd.c:959) 
[ 241.318859][ T609] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 241.319115][ T609] bus_for_each_drv (drivers/base/bus.c:462) 
[ 241.319328][ T609] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 241.319535][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 241.319749][ T609] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 241.319953][ T609] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 241.320164][ T609] __device_attach (drivers/base/dd.c:1030) 
[ 241.320369][ T609] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 241.320582][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 241.320790][ T609] ? 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) 
[ 241.321005][ T609] bus_probe_device (drivers/base/bus.c:537) 
[ 241.321214][ T609] device_add (drivers/base/core.c:3672) 
[ 241.321426][ T609] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 241.321638][ T609] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 241.321855][ T609] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 241.322119][ T609] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 241.322392][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 241.322612][ T609] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 241.322827][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 241.323030][ T609] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 241.323243][ T609] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 241.323407][ T609] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 241.323620][ T609] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 241.323837][ T609] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:885) 
[ 241.324098][ T609] ksys_write (fs/read_write.c:731) 
[ 241.324257][ T609] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 241.324465][ T609] ? kernfs_fop_llseek (fs/kernfs/file.c:891) 
[ 241.324687][ T609] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 241.324893][ T609] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  241.325145][  T609] RIP: 0033:0x7f4bec3feb77
[ 241.325354][ T609] 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
[  241.326087][  T609] RSP: 002b:00007ffde1038ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  241.326391][  T609] RAX: ffffffffffffffda RBX: 00007f4bec1e4140 RCX: 00007f4bec3feb77
[  241.326699][  T609] RDX: 0000000000000009 RSI: 000055c304e30df0 RDI: 0000000000000005
[  241.327004][  T609] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  241.327303][  T609] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f4bde081940
[  241.327612][  T609] R13: 000055c304e30df0 R14: 0000000000000005 R15: 000055c304967910
| [  252.648146][  T609] ------------[ cut here ]------------
| [ 252.648553][ T609] WARNING: CPU: 3 PID: 609 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) 
| [  252.648984][  T609] Modules linked in: cls_bpf sch_ingress netdevsim psample sctp
| [  252.649781][  T609] Tainted: [W]=WARN
[  252.649940][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 252.650193][ T609] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 252.650453][ T609] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   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 d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[  252.651264][  T609] RSP: 0018:ffffc90000e97528 EFLAGS: 00010246
[  252.651529][  T609] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  252.651924][  T609] RDX: 0000000000000000 RSI: ffff888010b72cd0 RDI: ffff88800cf450f8
[  252.652231][  T609] RBP: ffffffffabc53580 R08: 0000000000000000 R09: fffffbfff5342504
[  252.652618][  T609] R10: ffffffffa9a12827 R11: ffff88800cf445c0 R12: 0000000000000000
[  252.652927][  T609] R13: ffff888010b72130 R14: ffff888010b72008 R15: ffff888010b72000
[  252.653376][  T609] FS:  00007f4bec1e41c0(0000) GS:ffff88806cf80000(0000) knlGS:0000000000000000
[  252.653756][  T609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  252.654031][  T609] CR2: 00007f4bdec44f30 CR3: 000000000ce98002 CR4: 0000000000772ef0
[  252.654340][  T609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  252.654659][  T609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  252.654967][  T609] PKRU: 55555554
[  252.655126][  T609] Call Trace:
[  252.655283][  T609]  <TASK>
[ 252.655390][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 252.655609][ T609] ? __warn (kernel/panic.c:748) 
[ 252.655770][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 252.655985][ T609] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 252.656201][ T609] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 252.656373][ T609] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 252.656590][ T609] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 252.656812][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 252.657022][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 252.657235][ T609] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 252.657493][ T609] ? _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) 
[ 252.657727][ T609] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 252.657954][ T609] register_netdevice (net/core/dev.c:11003) 
[ 252.658164][ T609] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 252.658370][ T609] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 252.658604][ T609] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 252.658827][ T609] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 252.659093][ T609] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 252.659265][ T609] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 252.659538][ T609] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 252.659813][ T609] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 252.660083][ T609] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 252.660326][ T609] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 252.660600][ T609] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 252.660803][ T609] ? 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)) 
[ 252.660954][ T609] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 252.661162][ T609] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 252.661369][ T609] __driver_probe_device (drivers/base/dd.c:800) 
[ 252.661585][ T609] driver_probe_device (drivers/base/dd.c:830) 
[ 252.661824][ T609] __device_attach_driver (drivers/base/dd.c:959) 
[ 252.662031][ T609] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 252.662282][ T609] bus_for_each_drv (drivers/base/bus.c:462) 
[ 252.662487][ T609] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 252.662700][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 252.662906][ T609] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 252.663108][ T609] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 252.663322][ T609] __device_attach (drivers/base/dd.c:1030) 
[ 252.663526][ T609] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 252.663739][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 252.663952][ T609] ? 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) 
[ 252.664158][ T609] bus_probe_device (drivers/base/bus.c:537) 
[ 252.664360][ T609] device_add (drivers/base/core.c:3672) 
[ 252.664576][ T609] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 252.664777][ T609] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 252.664987][ T609] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 252.665244][ T609] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 252.665503][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 252.665709][ T609] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 252.665936][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 252.666137][ T609] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 252.666351][ T609] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 252.666514][ T609] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 252.666731][ T609] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 252.666949][ T609] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:885) 
[ 252.667213][ T609] ksys_write (fs/read_write.c:731) 
[ 252.667371][ T609] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 252.667585][ T609] ? kernfs_fop_llseek (fs/kernfs/file.c:891) 
[ 252.667806][ T609] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 252.668024][ T609] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  252.668270][  T609] RIP: 0033:0x7f4bec3feb77
[ 252.668473][ T609] 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
[  252.669165][  T609] RSP: 002b:00007ffde1038ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  252.669498][  T609] RAX: ffffffffffffffda RBX: 00007f4bec1e4140 RCX: 00007f4bec3feb77
[  252.669812][  T609] RDX: 0000000000000009 RSI: 000055c304e30df0 RDI: 0000000000000005
[  252.670113][  T609] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  252.670417][  T609] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f4bde081940
[  252.670735][  T609] R13: 000055c304e30df0 R14: 0000000000000005 R15: 000055c304967910
| [  263.300579][  T609] ------------[ cut here ]------------
| [ 263.300998][ T609] WARNING: CPU: 2 PID: 609 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) 
| [  263.301547][  T609] Modules linked in: cls_bpf sch_ingress netdevsim psample sctp
| [  263.302282][  T609] Tainted: [W]=WARN
[  263.302467][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 263.302745][ T609] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 263.303019][ T609] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   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 d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[  263.303753][  T609] RSP: 0018:ffffc90000e97528 EFLAGS: 00010246
[  263.304036][  T609] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  263.304348][  T609] RDX: 0000000000000000 RSI: ffff888002492cd0 RDI: ffff88800cf450f8
[  263.304678][  T609] RBP: ffffffffabc53580 R08: 0000000000000000 R09: fffffbfff5342504
[  263.304994][  T609] R10: ffffffffa9a12827 R11: ffff88800cf445c0 R12: 0000000000000000
[  263.305318][  T609] R13: ffff888002492130 R14: ffff888002492008 R15: ffff888002492000
[  263.305637][  T609] FS:  00007f4bec1e41c0(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[  263.305996][  T609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  263.306258][  T609] CR2: 0000559d915161c8 CR3: 000000000ce98004 CR4: 0000000000772ef0
[  263.306572][  T609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  263.306877][  T609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  263.307184][  T609] PKRU: 55555554
[  263.307351][  T609] Call Trace:
[  263.307513][  T609]  <TASK>
[ 263.307646][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 263.307859][ T609] ? __warn (kernel/panic.c:748) 
[ 263.308046][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 263.308265][ T609] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 263.308488][ T609] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 263.308669][ T609] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 263.308891][ T609] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 263.309130][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 263.309351][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 263.309587][ T609] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 263.309860][ T609] ? _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) 
[ 263.310084][ T609] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 263.310308][ T609] register_netdevice (net/core/dev.c:11003) 
[ 263.310543][ T609] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 263.310771][ T609] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 263.311000][ T609] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 263.311229][ T609] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 263.311497][ T609] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 263.311676][ T609] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 263.311957][ T609] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 263.312227][ T609] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 263.312497][ T609] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 263.312730][ T609] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 263.312999][ T609] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 263.313211][ T609] ? 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)) 
[ 263.313376][ T609] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 263.313609][ T609] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 263.313851][ T609] __driver_probe_device (drivers/base/dd.c:800) 
[ 263.314071][ T609] driver_probe_device (drivers/base/dd.c:830) 
[ 263.314290][ T609] __device_attach_driver (drivers/base/dd.c:959) 
[ 263.314512][ T609] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 263.314787][ T609] bus_for_each_drv (drivers/base/bus.c:462) 
[ 263.315007][ T609] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 263.315227][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 263.315444][ T609] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 263.315679][ T609] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 263.315897][ T609] __device_attach (drivers/base/dd.c:1030) 
[ 263.316107][ T609] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 263.316319][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 263.316531][ T609] ? 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) 
[ 263.316765][ T609] bus_probe_device (drivers/base/bus.c:537) 
[ 263.316981][ T609] device_add (drivers/base/core.c:3672) 
[ 263.317199][ T609] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 263.317408][ T609] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 263.317645][ T609] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 263.317915][ T609] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 263.318188][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 263.318422][ T609] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 263.318657][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 263.318872][ T609] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 263.319101][ T609] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 263.319281][ T609] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 263.319496][ T609] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 263.319737][ T609] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:885) 
[ 263.320018][ T609] ksys_write (fs/read_write.c:731) 
[ 263.320191][ T609] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 263.320419][ T609] ? kernfs_fop_llseek (fs/kernfs/file.c:891) 
[ 263.320652][ T609] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 263.320867][ T609] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  263.321124][  T609] RIP: 0033:0x7f4bec3feb77
[ 263.321341][ T609] 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
[  263.322047][  T609] RSP: 002b:00007ffde1038ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  263.322382][  T609] RAX: ffffffffffffffda RBX: 00007f4bec1e4140 RCX: 00007f4bec3feb77
[  263.322704][  T609] RDX: 0000000000000008 RSI: 000055c304e30df0 RDI: 0000000000000005
[  263.323019][  T609] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[  263.323344][  T609] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f4bde081940
[  263.323658][  T609] R13: 000055c304e30df0 R14: 0000000000000005 R15: 000055c304967910
| [  273.374391][  T609] ------------[ cut here ]------------
| [ 273.374791][ T609] WARNING: CPU: 0 PID: 609 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) 
| [  273.375205][  T609] Modules linked in: cls_bpf sch_ingress netdevsim psample sctp
| [  273.375890][  T609] Tainted: [W]=WARN
[  273.376045][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 273.376302][ T609] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 273.376586][ T609] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   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 d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[  273.377274][  T609] RSP: 0018:ffffc90000e97528 EFLAGS: 00010246
[  273.377551][  T609] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  273.377958][  T609] RDX: 0000000000000000 RSI: ffff8880181cacd0 RDI: ffff88800cf450f8
[  273.378273][  T609] RBP: ffffffffabc53580 R08: 0000000000000000 R09: fffffbfff5342504
[  273.378671][  T609] R10: ffffffffa9a12827 R11: ffff88800cf445c0 R12: 0000000000000000
[  273.378975][  T609] R13: ffff8880181ca130 R14: ffff8880181ca008 R15: ffff8880181ca000
[  273.379289][  T609] FS:  00007f4bec1e41c0(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[  273.379742][  T609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  273.380000][  T609] CR2: 00007fb1eee6eb60 CR3: 000000000ce98002 CR4: 0000000000772ef0
[  273.380308][  T609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  273.380703][  T609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  273.381014][  T609] PKRU: 55555554
[  273.381172][  T609] Call Trace:
[  273.381328][  T609]  <TASK>
[ 273.381435][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 273.381735][ T609] ? __warn (kernel/panic.c:748) 
[ 273.381896][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 273.382104][ T609] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 273.382315][ T609] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 273.382477][ T609] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 273.382775][ T609] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 273.382997][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 273.383205][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 273.383420][ T609] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 273.383778][ T609] ? _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) 
[ 273.383992][ T609] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 273.384207][ T609] register_netdevice (net/core/dev.c:11003) 
[ 273.384419][ T609] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 273.384742][ T609] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 273.384962][ T609] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 273.385182][ T609] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 273.385713][ T609] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 273.385877][ T609] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 273.386154][ T609] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 273.386419][ T609] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 273.386816][ T609] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 273.387037][ T609] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 273.387298][ T609] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 273.387507][ T609] ? 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)) 
[ 273.387788][ T609] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 273.388004][ T609] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 273.388218][ T609] __driver_probe_device (drivers/base/dd.c:800) 
[ 273.388433][ T609] driver_probe_device (drivers/base/dd.c:830) 
[ 273.388763][ T609] __device_attach_driver (drivers/base/dd.c:959) 
[ 273.388977][ T609] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 273.389235][ T609] bus_for_each_drv (drivers/base/bus.c:462) 
[ 273.389447][ T609] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 273.389729][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 273.389939][ T609] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 273.390146][ T609] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 273.390363][ T609] __device_attach (drivers/base/dd.c:1030) 
[ 273.390581][ T609] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 273.390793][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 273.390998][ T609] ? 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) 
[ 273.391213][ T609] bus_probe_device (drivers/base/bus.c:537) 
[ 273.391420][ T609] device_add (drivers/base/core.c:3672) 
[ 273.391640][ T609] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 273.391850][ T609] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 273.392068][ T609] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 273.392337][ T609] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 273.392614][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 273.392820][ T609] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 273.393032][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 273.393240][ T609] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 273.393458][ T609] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 273.393633][ T609] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 273.393846][ T609] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 273.394053][ T609] ? 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) 
[ 273.394271][ T609] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 273.394485][ T609] ksys_write (fs/read_write.c:731) 
[ 273.394653][ T609] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 273.394861][ T609] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 273.395086][ T609] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 273.395296][ T609] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  273.395550][  T609] RIP: 0033:0x7f4bec3feb77
[ 273.395773][ T609] 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
[  273.396484][  T609] RSP: 002b:00007ffde1038ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  273.396802][  T609] RAX: ffffffffffffffda RBX: 00007f4bec1e4140 RCX: 00007f4bec3feb77
[  273.397106][  T609] RDX: 0000000000000008 RSI: 000055c304e30df0 RDI: 0000000000000005
[  273.397412][  T609] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[  273.397734][  T609] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f4bde081940
[  273.398041][  T609] R13: 000055c304e30df0 R14: 0000000000000005 R15: 000055c304967910
| [  273.408270][  T609] ------------[ cut here ]------------
| [ 273.408498][ T609] WARNING: CPU: 3 PID: 609 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) 
| [  273.408920][  T609] Modules linked in: cls_bpf sch_ingress netdevsim psample sctp
| [  273.409652][  T609] Tainted: [W]=WARN
[  273.409819][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 273.410076][ T609] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 273.410342][ T609] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   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 d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[  273.411075][  T609] RSP: 0018:ffffc90000e97528 EFLAGS: 00010246
[  273.411342][  T609] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  273.411660][  T609] RDX: 0000000000000000 RSI: ffff88800ab52cd0 RDI: ffff88800cf450f8
[  273.411964][  T609] RBP: ffffffffabc53580 R08: 0000000000000000 R09: fffffbfff5342504
[  273.412273][  T609] R10: ffffffffa9a12827 R11: ffff88800cf445c0 R12: 0000000000000000
[  273.412595][  T609] R13: ffff88800ab52130 R14: ffff88800ab52008 R15: ffff88800ab52000
[  273.412902][  T609] FS:  00007f4bec1e41c0(0000) GS:ffff88806cf80000(0000) knlGS:0000000000000000
[  273.413258][  T609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  273.413515][  T609] CR2: 00007fcef38a4270 CR3: 000000000ce98003 CR4: 0000000000772ef0
[  273.413845][  T609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  273.414151][  T609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  273.414453][  T609] PKRU: 55555554
[  273.414623][  T609] Call Trace:
[  273.414779][  T609]  <TASK>
[ 273.414884][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 273.415091][ T609] ? __warn (kernel/panic.c:748) 
[ 273.415254][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 273.415462][ T609] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 273.415681][ T609] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 273.415839][ T609] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 273.416043][ T609] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 273.416264][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 273.416469][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 273.416693][ T609] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 273.416953][ T609] ? _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) 
[ 273.417164][ T609] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 273.417374][ T609] register_netdevice (net/core/dev.c:11003) 
[ 273.417591][ T609] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 273.417796][ T609] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 273.418014][ T609] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 273.418239][ T609] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 273.418499][ T609] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 273.418666][ T609] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 273.418934][ T609] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 273.419224][ T609] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 273.419490][ T609] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 273.419720][ T609] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 273.419981][ T609] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 273.420188][ T609] ? 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)) 
[ 273.420343][ T609] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 273.420556][ T609] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 273.420778][ T609] __driver_probe_device (drivers/base/dd.c:800) 
[ 273.420986][ T609] driver_probe_device (drivers/base/dd.c:830) 
[ 273.421196][ T609] __device_attach_driver (drivers/base/dd.c:959) 
[ 273.421405][ T609] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 273.421665][ T609] bus_for_each_drv (drivers/base/bus.c:462) 
[ 273.421872][ T609] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 273.422075][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 273.422279][ T609] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 273.422483][ T609] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 273.422707][ T609] __device_attach (drivers/base/dd.c:1030) 
[ 273.422910][ T609] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 273.423115][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 273.423319][ T609] ? 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) 
[ 273.423531][ T609] bus_probe_device (drivers/base/bus.c:537) 
[ 273.423749][ T609] device_add (drivers/base/core.c:3672) 
[ 273.423955][ T609] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 273.424160][ T609] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 273.424376][ T609] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 273.424651][ T609] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 273.424916][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 273.425118][ T609] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 273.425328][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 273.425529][ T609] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 273.425752][ T609] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 273.425917][ T609] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 273.426130][ T609] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 273.426332][ T609] ? 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) 
[ 273.426544][ T609] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 273.426764][ T609] ksys_write (fs/read_write.c:731) 
[ 273.426922][ T609] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 273.427129][ T609] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 273.427344][ T609] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 273.427552][ T609] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  273.427813][  T609] RIP: 0033:0x7f4bec3feb77
[ 273.428021][ T609] 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
[  273.428758][  T609] RSP: 002b:00007ffde1038ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  273.429082][  T609] RAX: ffffffffffffffda RBX: 00007f4bec1e4140 RCX: 00007f4bec3feb77
[  273.429402][  T609] RDX: 0000000000000008 RSI: 000055c304e30df0 RDI: 0000000000000005
[  273.429711][  T609] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[  273.430016][  T609] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f4bde081940
[  273.430317][  T609] R13: 000055c304e30df0 R14: 0000000000000005 R15: 000055c304967910
| [  273.439794][  T609] ------------[ cut here ]------------
| [ 273.440037][ T609] WARNING: CPU: 2 PID: 609 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) 
| [  273.440454][  T609] Modules linked in: cls_bpf sch_ingress netdevsim psample sctp
| [  273.441171][  T609] Tainted: [W]=WARN
[  273.441348][  T609] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 273.441626][ T609] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 273.441901][ T609] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 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:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   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 d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  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
[  273.442627][  T609] RSP: 0018:ffffc90000e97528 EFLAGS: 00010246
[  273.442908][  T609] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  273.443217][  T609] RDX: 0000000000000000 RSI: ffff88800ab5acd0 RDI: ffff88800cf450f8
[  273.443528][  T609] RBP: ffffffffabc53580 R08: 0000000000000000 R09: fffffbfff5342504
[  273.443846][  T609] R10: ffffffffa9a12827 R11: ffff88800cf445c0 R12: 0000000000000000
[  273.444162][  T609] R13: ffff88800ab5a130 R14: ffff88800ab5a008 R15: ffff88800ab5a000
[  273.444468][  T609] FS:  00007f4bec1e41c0(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[  273.444832][  T609] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  273.445096][  T609] CR2: 00007fb1ef217d40 CR3: 000000000ce98005 CR4: 0000000000772ef0
[  273.445407][  T609] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  273.445725][  T609] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  273.446033][  T609] PKRU: 55555554
[  273.446197][  T609] Call Trace:
[  273.446359][  T609]  <TASK>
[ 273.446476][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 273.446703][ T609] ? __warn (kernel/panic.c:748) 
[ 273.446875][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 273.447089][ T609] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 273.447305][ T609] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 273.447490][ T609] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 273.447719][ T609] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 273.447962][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 273.448176][ T609] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 273.448399][ T609] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 273.448674][ T609] ? _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) 
[ 273.448895][ T609] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 273.449135][ T609] register_netdevice (net/core/dev.c:11003) 
[ 273.449362][ T609] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 273.449587][ T609] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 273.449820][ T609] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 273.450056][ T609] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 273.450340][ T609] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 273.450507][ T609] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 273.450793][ T609] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 273.451059][ T609] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 273.451330][ T609] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 273.451557][ T609] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 273.451833][ T609] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 273.452046][ T609] ? 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)) 
[ 273.452210][ T609] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 273.452430][ T609] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 273.452660][ T609] __driver_probe_device (drivers/base/dd.c:800) 
[ 273.452876][ T609] driver_probe_device (drivers/base/dd.c:830) 
[ 273.453092][ T609] __device_attach_driver (drivers/base/dd.c:959) 
[ 273.453309][ T609] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 273.453574][ T609] bus_for_each_drv (drivers/base/bus.c:462) 
[ 273.453791][ T609] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 273.453999][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 273.454210][ T609] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 273.454439][ T609] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 273.454679][ T609] __device_attach (drivers/base/dd.c:1030) 
[ 273.454895][ T609] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 273.455112][ T609] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 273.455330][ T609] ? 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) 
[ 273.455555][ T609] bus_probe_device (drivers/base/bus.c:537) 
[ 273.455794][ T609] device_add (drivers/base/core.c:3672) 
[ 273.456037][ T609] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 273.456253][ T609] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 273.456494][ T609] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 273.456784][ T609] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 273.457074][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 273.457285][ T609] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 273.457500][ T609] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 273.457718][ T609] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 273.457939][ T609] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 273.458111][ T609] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 273.458326][ T609] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 273.458535][ T609] ? 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) 
[ 273.458764][ T609] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 273.458983][ T609] ksys_write (fs/read_write.c:731) 
[ 273.459174][ T609] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 273.459395][ T609] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 273.459635][ T609] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 273.459856][ T609] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  273.460123][  T609] RIP: 0033:0x7f4bec3feb77
[ 273.460351][ T609] 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
[  273.461057][  T609] RSP: 002b:00007ffde1038ee8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  273.461366][  T609] RAX: ffffffffffffffda RBX: 00007f4bec1e4140 RCX: 00007f4bec3feb77
[  273.461680][  T609] RDX: 0000000000000008 RSI: 000055c304e30df0 RDI: 0000000000000005
[  273.461984][  T609] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[  273.462293][  T609] R10: 0000000000000002 R11: 0000000000000246 R12: 00007f4bde081940


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