======================================
| 0
| xx__-> [  292.945140][ T4667] ------------[ cut here ]------------
| [ 292.945539][ T4667] WARNING: CPU: 0 PID: 4667 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) 
| [  292.946210][ T4667] Modules linked in: netdevsim psample act_gact cls_flower vxlan act_mirred cls_matchall ip6_gre gre pktgen xfrm_interface sha1_generic xfrm_user cls_bpf sch_ingress
[  292.947206][ T4667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 292.947464][ T4667] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 292.947744][ T4667] 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
[  292.948456][ T4667] RSP: 0018:ffffc90002047528 EFLAGS: 00010246
[  292.948722][ T4667] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  292.949039][ T4667] RDX: 0000000000000000 RSI: ffff88800a572cd0 RDI: ffff88801a3e2e38
[  292.949352][ T4667] RBP: ffffffffa4853580 R08: 0000000000000000 R09: fffffbfff44c2504
[  292.949661][ T4667] R10: ffffffffa2612827 R11: ffff88801a3e2300 R12: 0000000000000000
[  292.949980][ T4667] R13: ffff88800a572130 R14: ffff88800a572008 R15: ffff88800a572000
[  292.950290][ T4667] FS:  00007fe389ef71c0(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[  292.950650][ T4667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  292.950921][ T4667] CR2: 00007f7248e98000 CR3: 0000000005a76005 CR4: 0000000000772ef0
[  292.951229][ T4667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  292.951535][ T4667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  292.951992][ T4667] PKRU: 55555554
[  292.952154][ T4667] Call Trace:
[  292.952312][ T4667]  <TASK>
[ 292.952422][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 292.952633][ T4667] ? __warn (kernel/panic.c:748) 
[ 292.952813][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 292.953021][ T4667] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 292.953234][ T4667] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 292.953391][ T4667] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 292.953601][ T4667] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 292.953829][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 292.954039][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 292.954249][ T4667] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 292.954509][ T4667] ? _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) 
[ 292.954720][ T4667] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 292.954948][ T4667] register_netdevice (net/core/dev.c:11003) 
[ 292.955165][ T4667] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 292.955370][ T4667] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 292.955591][ T4667] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 292.955822][ T4667] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 292.956086][ T4667] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 292.956246][ T4667] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 292.956520][ T4667] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 292.956795][ T4667] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 292.957065][ T4667] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 292.957283][ T4667] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 292.957542][ T4667] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 292.957761][ T4667] ? 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)) 
[ 292.957924][ T4667] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 292.958138][ T4667] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 292.958350][ T4667] __driver_probe_device (drivers/base/dd.c:800) 
[ 292.958559][ T4667] driver_probe_device (drivers/base/dd.c:830) 
[ 292.958778][ T4667] __device_attach_driver (drivers/base/dd.c:959) 
[ 292.958987][ T4667] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 292.959239][ T4667] bus_for_each_drv (drivers/base/bus.c:462) 
[ 292.959453][ T4667] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 292.959656][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 292.959872][ T4667] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 292.960078][ T4667] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 292.960290][ T4667] __device_attach (drivers/base/dd.c:1030) 
[ 292.960496][ T4667] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 292.960699][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 292.960918][ T4667] ? 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) 
[ 292.961132][ T4667] bus_probe_device (drivers/base/bus.c:537) 
[ 292.961340][ T4667] device_add (drivers/base/core.c:3672) 
[ 292.961548][ T4667] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 292.961761][ T4667] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 292.961978][ T4667] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 292.962242][ T4667] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 292.962513][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 292.962723][ T4667] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 292.962945][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 292.963149][ T4667] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 292.963360][ T4667] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 292.963524][ T4667] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 292.963753][ T4667] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 292.963965][ T4667] ? 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) 
[ 292.964179][ T4667] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 292.964391][ T4667] ksys_write (fs/read_write.c:731) 
[ 292.964551][ T4667] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 292.964765][ T4667] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 292.964982][ T4667] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 292.965191][ T4667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  292.965445][ T4667] RIP: 0033:0x7fe38a111b77
[ 292.965666][ T4667] 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
[  292.966381][ T4667] RSP: 002b:00007ffe4453e2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  292.966690][ T4667] RAX: ffffffffffffffda RBX: 00007fe389ef7140 RCX: 00007fe38a111b77
[  292.967010][ T4667] RDX: 0000000000000009 RSI: 0000562ece39bb40 RDI: 0000000000000005
[  292.967321][ T4667] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  292.967627][ T4667] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fe37bd93700
[  292.967944][ T4667] R13: 0000562ece39bb40 R14: 0000000000000005 R15: 0000562ecdedb910
| [  304.401673][ T4667] ------------[ cut here ]------------
| [ 304.402115][ T4667] WARNING: CPU: 3 PID: 4667 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) 
| [  304.402532][ T4667] Modules linked in: netdevsim psample act_gact cls_flower vxlan act_mirred cls_matchall ip6_gre gre pktgen xfrm_interface sha1_generic xfrm_user cls_bpf sch_ingress
| [  304.403578][ T4667] Tainted: [W]=WARN
[  304.403763][ T4667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 304.404021][ T4667] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 304.404283][ T4667] 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
[  304.405004][ T4667] RSP: 0018:ffffc90002047528 EFLAGS: 00010246
[  304.405268][ T4667] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  304.405572][ T4667] RDX: 0000000000000000 RSI: ffff88800bb6acd0 RDI: ffff88801a3e2e38
[  304.405889][ T4667] RBP: ffffffffa4853580 R08: 0000000000000000 R09: fffffbfff44c2504
[  304.406197][ T4667] R10: ffffffffa2612827 R11: ffff88801a3e2300 R12: 0000000000000000
[  304.406504][ T4667] R13: ffff88800bb6a130 R14: ffff88800bb6a008 R15: ffff88800bb6a000
[  304.406813][ T4667] FS:  00007fe389ef71c0(0000) GS:ffff88806cf80000(0000) knlGS:0000000000000000
[  304.407167][ T4667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  304.407431][ T4667] CR2: 00005644eda31008 CR3: 0000000005a76003 CR4: 0000000000772ef0
[  304.407748][ T4667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  304.408052][ T4667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  304.408488][ T4667] PKRU: 55555554
[  304.408650][ T4667] Call Trace:
[  304.408815][ T4667]  <TASK>
[ 304.408923][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 304.409131][ T4667] ? __warn (kernel/panic.c:748) 
[ 304.409289][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 304.409498][ T4667] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 304.409710][ T4667] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 304.409879][ T4667] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 304.410089][ T4667] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 304.410308][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 304.410514][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 304.410724][ T4667] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 304.410998][ T4667] ? _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) 
[ 304.411212][ T4667] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 304.411424][ T4667] register_netdevice (net/core/dev.c:11003) 
[ 304.411635][ T4667] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 304.411848][ T4667] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 304.412068][ T4667] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 304.412312][ T4667] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 304.412576][ T4667] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 304.412759][ T4667] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 304.413028][ T4667] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 304.413294][ T4667] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 304.413558][ T4667] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 304.413784][ T4667] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 304.414053][ T4667] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 304.414260][ T4667] ? 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)) 
[ 304.414416][ T4667] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 304.414630][ T4667] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 304.414854][ T4667] __driver_probe_device (drivers/base/dd.c:800) 
[ 304.415064][ T4667] driver_probe_device (drivers/base/dd.c:830) 
[ 304.415272][ T4667] __device_attach_driver (drivers/base/dd.c:959) 
[ 304.415485][ T4667] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 304.415754][ T4667] bus_for_each_drv (drivers/base/bus.c:462) 
[ 304.415962][ T4667] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 304.416165][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 304.416371][ T4667] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 304.416574][ T4667] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 304.416800][ T4667] __device_attach (drivers/base/dd.c:1030) 
[ 304.417007][ T4667] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 304.417211][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 304.417416][ T4667] ? 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) 
[ 304.417629][ T4667] bus_probe_device (drivers/base/bus.c:537) 
[ 304.417848][ T4667] device_add (drivers/base/core.c:3672) 
[ 304.418056][ T4667] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 304.418259][ T4667] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 304.418511][ T4667] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 304.418788][ T4667] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 304.419057][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 304.419259][ T4667] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 304.419471][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 304.419673][ T4667] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 304.419898][ T4667] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 304.420064][ T4667] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 304.420276][ T4667] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 304.420479][ T4667] ? 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) 
[ 304.420693][ T4667] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 304.420912][ T4667] ksys_write (fs/read_write.c:731) 
[ 304.421072][ T4667] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 304.421273][ T4667] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 304.421493][ T4667] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 304.421708][ T4667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  304.421969][ T4667] RIP: 0033:0x7fe38a111b77
[ 304.422179][ T4667] 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
[  304.422903][ T4667] RSP: 002b:00007ffe4453e2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  304.423211][ T4667] RAX: ffffffffffffffda RBX: 00007fe389ef7140 RCX: 00007fe38a111b77
[  304.423513][ T4667] RDX: 0000000000000009 RSI: 0000562ece39bd90 RDI: 0000000000000005
[  304.423826][ T4667] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  304.424130][ T4667] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fe37bd93700
[  304.424436][ T4667] R13: 0000562ece39bd90 R14: 0000000000000005 R15: 0000562ecdedb910
| [  342.701149][ T4667] ------------[ cut here ]------------
| [ 342.701543][ T4667] WARNING: CPU: 1 PID: 4667 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) 
| [  342.702059][ T4667] Modules linked in: netdevsim psample act_gact cls_flower vxlan act_mirred cls_matchall ip6_gre gre pktgen xfrm_interface sha1_generic xfrm_user cls_bpf sch_ingress
| [  342.703192][ T4667] Tainted: [W]=WARN
[  342.703351][ T4667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 342.703606][ T4667] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 342.704030][ T4667] 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
[  342.704939][ T4667] RSP: 0018:ffffc90002047528 EFLAGS: 00010246
[  342.705201][ T4667] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  342.705504][ T4667] RDX: 0000000000000000 RSI: ffff888018432cd0 RDI: ffff88801a3e2e38
[  342.705994][ T4667] RBP: ffffffffa4853580 R08: 0000000000000000 R09: fffffbfff44c2504
[  342.706308][ T4667] R10: ffffffffa2612827 R11: ffff88801a3e2300 R12: 0000000000000000
[  342.706612][ T4667] R13: ffff888018432130 R14: ffff888018432008 R15: ffff888018432000
[  342.707088][ T4667] FS:  00007fe389ef71c0(0000) GS:ffff88806ce80000(0000) knlGS:0000000000000000
[  342.707443][ T4667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  342.707706][ T4667] CR2: 00005644eda6d730 CR3: 0000000005a76004 CR4: 0000000000772ef0
[  342.708045][ T4667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  342.708349][ T4667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  342.708649][ T4667] PKRU: 55555554
[  342.708814][ T4667] Call Trace:
[  342.708971][ T4667]  <TASK>
[ 342.709083][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 342.709288][ T4667] ? __warn (kernel/panic.c:748) 
[ 342.709446][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 342.709653][ T4667] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 342.709872][ T4667] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 342.710188][ T4667] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 342.710399][ T4667] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 342.710619][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 342.710844][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 342.711057][ T4667] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 342.711317][ T4667] ? _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) 
[ 342.711529][ T4667] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 342.711750][ T4667] register_netdevice (net/core/dev.c:11003) 
[ 342.711962][ T4667] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 342.712172][ T4667] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 342.712391][ T4667] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 342.712619][ T4667] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 342.712897][ T4667] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 342.713059][ T4667] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 342.713328][ T4667] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 342.713596][ T4667] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 342.713877][ T4667] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 342.714095][ T4667] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 342.714353][ T4667] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 342.714559][ T4667] ? 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)) 
[ 342.714715][ T4667] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 342.714941][ T4667] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 342.715161][ T4667] __driver_probe_device (drivers/base/dd.c:800) 
[ 342.715371][ T4667] driver_probe_device (drivers/base/dd.c:830) 
[ 342.715577][ T4667] __device_attach_driver (drivers/base/dd.c:959) 
[ 342.715794][ T4667] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 342.716047][ T4667] bus_for_each_drv (drivers/base/bus.c:462) 
[ 342.716255][ T4667] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 342.716457][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 342.716665][ T4667] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 342.716880][ T4667] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 342.717091][ T4667] __device_attach (drivers/base/dd.c:1030) 
[ 342.717296][ T4667] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 342.717499][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 342.717703][ T4667] ? 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) 
[ 342.717924][ T4667] bus_probe_device (drivers/base/bus.c:537) 
[ 342.718139][ T4667] device_add (drivers/base/core.c:3672) 
[ 342.718348][ T4667] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 342.718550][ T4667] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 342.718773][ T4667] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 342.719042][ T4667] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 342.719307][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 342.719509][ T4667] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 342.719726][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 342.719938][ T4667] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 342.720149][ T4667] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 342.720314][ T4667] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 342.720528][ T4667] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 342.720729][ T4667] ? 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) 
[ 342.720954][ T4667] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 342.721171][ T4667] ksys_write (fs/read_write.c:731) 
[ 342.721330][ T4667] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 342.721533][ T4667] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 342.721757][ T4667] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 342.721968][ T4667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  342.722218][ T4667] RIP: 0033:0x7fe38a111b77
[ 342.722433][ T4667] 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
[  342.723152][ T4667] RSP: 002b:00007ffe4453e2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  342.723460][ T4667] RAX: ffffffffffffffda RBX: 00007fe389ef7140 RCX: 00007fe38a111b77
[  342.723768][ T4667] RDX: 0000000000000008 RSI: 0000562ece3a7270 RDI: 0000000000000005
[  342.724076][ T4667] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[  342.724380][ T4667] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fe37bd93700
[  342.724681][ T4667] R13: 0000562ece3a7270 R14: 0000000000000005 R15: 0000562ecdedb910
| [  354.577531][ T4667] ------------[ cut here ]------------
| [ 354.577975][ T4667] WARNING: CPU: 2 PID: 4667 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) 
| [  354.578407][ T4667] Modules linked in: netdevsim psample act_gact cls_flower vxlan act_mirred cls_matchall ip6_gre gre pktgen xfrm_interface sha1_generic xfrm_user cls_bpf sch_ingress
| [  354.579472][ T4667] Tainted: [W]=WARN
[  354.579643][ T4667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 354.579926][ T4667] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 354.580208][ T4667] 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
[  354.580934][ T4667] RSP: 0018:ffffc90002047528 EFLAGS: 00010246
[  354.581199][ T4667] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  354.581513][ T4667] RDX: 0000000000000000 RSI: ffff88800bb6acd0 RDI: ffff88801a3e2e38
[  354.582037][ T4667] RBP: ffffffffa4853580 R08: 0000000000000000 R09: fffffbfff44c2504
[  354.582370][ T4667] R10: ffffffffa2612827 R11: ffff88801a3e2300 R12: 0000000000000000
[  354.582701][ T4667] R13: ffff88800bb6a130 R14: ffff88800bb6a008 R15: ffff88800bb6a000
[  354.583036][ T4667] FS:  00007fe389ef71c0(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[  354.583407][ T4667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  354.583692][ T4667] CR2: 00007fe37c8c4810 CR3: 0000000005a76003 CR4: 0000000000772ef0
[  354.584024][ T4667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  354.584345][ T4667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  354.584675][ T4667] PKRU: 55555554
[  354.584849][ T4667] Call Trace:
[  354.585040][ T4667]  <TASK>
[ 354.585162][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 354.585385][ T4667] ? __warn (kernel/panic.c:748) 
[ 354.585587][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 354.585823][ T4667] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 354.586051][ T4667] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 354.586222][ T4667] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 354.586438][ T4667] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 354.586673][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 354.586907][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 354.587138][ T4667] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 354.587412][ T4667] ? _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) 
[ 354.587637][ T4667] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 354.587871][ T4667] register_netdevice (net/core/dev.c:11003) 
[ 354.588107][ T4667] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 354.588320][ T4667] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 354.588549][ T4667] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 354.588791][ T4667] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 354.589063][ T4667] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 354.589231][ T4667] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 354.589507][ T4667] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 354.589805][ T4667] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 354.590086][ T4667] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 354.590322][ T4667] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 354.590598][ T4667] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 354.590831][ T4667] ? 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)) 
[ 354.591004][ T4667] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 354.591231][ T4667] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 354.591459][ T4667] __driver_probe_device (drivers/base/dd.c:800) 
[ 354.591681][ T4667] driver_probe_device (drivers/base/dd.c:830) 
[ 354.591920][ T4667] __device_attach_driver (drivers/base/dd.c:959) 
[ 354.592147][ T4667] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 354.592432][ T4667] bus_for_each_drv (drivers/base/bus.c:462) 
[ 354.592653][ T4667] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 354.592880][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 354.593098][ T4667] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 354.593316][ T4667] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 354.593544][ T4667] __device_attach (drivers/base/dd.c:1030) 
[ 354.593781][ T4667] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 354.594015][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 354.594234][ T4667] ? 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) 
[ 354.594461][ T4667] bus_probe_device (drivers/base/bus.c:537) 
[ 354.594682][ T4667] device_add (drivers/base/core.c:3672) 
[ 354.594917][ T4667] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 354.595139][ T4667] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 354.595370][ T4667] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 354.595649][ T4667] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 354.595942][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 354.596166][ T4667] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 354.596386][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 354.596596][ T4667] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 354.596829][ T4667] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 354.597002][ T4667] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 354.597221][ T4667] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 354.597431][ T4667] ? 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) 
[ 354.597653][ T4667] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 354.597903][ T4667] ksys_write (fs/read_write.c:731) 
[ 354.598077][ T4667] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 354.598299][ T4667] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 354.598530][ T4667] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 354.598765][ T4667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  354.599034][ T4667] RIP: 0033:0x7fe38a111b77
[ 354.599257][ T4667] 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
[  354.599995][ T4667] RSP: 002b:00007ffe4453e2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  354.600309][ T4667] RAX: ffffffffffffffda RBX: 00007fe389ef7140 RCX: 00007fe38a111b77
[  354.600616][ T4667] RDX: 0000000000000009 RSI: 0000562ece3a7000 RDI: 0000000000000005
[  354.600935][ T4667] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  354.601251][ T4667] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fe37bd93700
[  354.601560][ T4667] R13: 0000562ece3a7000 R14: 0000000000000005 R15: 0000562ecdedb910
| [  383.352960][ T4667] ------------[ cut here ]------------
| [ 383.353326][ T4667] WARNING: CPU: 3 PID: 4667 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) 
| [  383.353761][ T4667] Modules linked in: netdevsim psample act_gact cls_flower vxlan act_mirred cls_matchall ip6_gre gre pktgen xfrm_interface sha1_generic xfrm_user cls_bpf sch_ingress
| [  383.354770][ T4667] Tainted: [W]=WARN
[  383.354942][ T4667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 383.355200][ T4667] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 383.355463][ T4667] 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
[  383.356207][ T4667] RSP: 0018:ffffc90002047528 EFLAGS: 00010246
[  383.356464][ T4667] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  383.356792][ T4667] RDX: 0000000000000000 RSI: ffff888018432cd0 RDI: ffff88801a3e2e38
[  383.357103][ T4667] RBP: ffffffffa4853580 R08: 0000000000000000 R09: fffffbfff44c2504
[  383.357412][ T4667] R10: ffffffffa2612827 R11: ffff88801a3e2300 R12: 0000000000000000
[  383.357718][ T4667] R13: ffff888018432130 R14: ffff888018432008 R15: ffff888018432000
[  383.358043][ T4667] FS:  00007fe389ef71c0(0000) GS:ffff88806cf80000(0000) knlGS:0000000000000000
[  383.358400][ T4667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  383.358830][ T4667] CR2: 00007f009984a000 CR3: 0000000005a76003 CR4: 0000000000772ef0
[  383.359146][ T4667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  383.359453][ T4667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  383.359762][ T4667] PKRU: 55555554
[  383.359915][ T4667] Call Trace:
[  383.360066][ T4667]  <TASK>
[ 383.360169][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 383.360377][ T4667] ? __warn (kernel/panic.c:748) 
[ 383.360540][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 383.360758][ T4667] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 383.360962][ T4667] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 383.361120][ T4667] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 383.361326][ T4667] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 383.361546][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 383.361761][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 383.361999][ T4667] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 383.362271][ T4667] ? _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) 
[ 383.362487][ T4667] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 383.362729][ T4667] register_netdevice (net/core/dev.c:11003) 
[ 383.362959][ T4667] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 383.363165][ T4667] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 383.363399][ T4667] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 383.363617][ T4667] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 383.363884][ T4667] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 383.364048][ T4667] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 383.364317][ T4667] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 383.364577][ T4667] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 383.364864][ T4667] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 383.365086][ T4667] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 383.365347][ T4667] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 383.365558][ T4667] ? 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)) 
[ 383.365716][ T4667] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 383.365943][ T4667] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 383.366165][ T4667] __driver_probe_device (drivers/base/dd.c:800) 
[ 383.366371][ T4667] driver_probe_device (drivers/base/dd.c:830) 
[ 383.366576][ T4667] __device_attach_driver (drivers/base/dd.c:959) 
[ 383.366792][ T4667] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 383.367047][ T4667] bus_for_each_drv (drivers/base/bus.c:462) 
[ 383.367251][ T4667] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 383.367453][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 383.367678][ T4667] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 383.367895][ T4667] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 383.368112][ T4667] __device_attach (drivers/base/dd.c:1030) 
[ 383.368322][ T4667] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 383.368533][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 383.368748][ T4667] ? 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) 
[ 383.368963][ T4667] bus_probe_device (drivers/base/bus.c:537) 
[ 383.369172][ T4667] device_add (drivers/base/core.c:3672) 
[ 383.369380][ T4667] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 383.369584][ T4667] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 383.369813][ T4667] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 383.370079][ T4667] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 383.370353][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 383.370557][ T4667] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 383.370776][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 383.370989][ T4667] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 383.371195][ T4667] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 383.371356][ T4667] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 383.371554][ T4667] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 383.371775][ T4667] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:885) 
[ 383.372038][ T4667] ksys_write (fs/read_write.c:731) 
[ 383.372193][ T4667] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 383.372431][ T4667] ? kernfs_fop_llseek (fs/kernfs/file.c:891) 
[ 383.372648][ T4667] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 383.372865][ T4667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  383.373121][ T4667] RIP: 0033:0x7fe38a111b77
[ 383.373335][ T4667] 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
[  383.374090][ T4667] RSP: 002b:00007ffe4453e2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  383.374394][ T4667] RAX: ffffffffffffffda RBX: 00007fe389ef7140 RCX: 00007fe38a111b77
[  383.374693][ T4667] RDX: 0000000000000008 RSI: 0000562ece3ad0a0 RDI: 0000000000000005
[  383.375187][ T4667] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[  383.375485][ T4667] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fe37bd93700
[  383.375805][ T4667] R13: 0000562ece3ad0a0 R14: 0000000000000005 R15: 0000562ecdedb910
| [  398.718351][ T4667] ------------[ cut here ]------------
| [ 398.718766][ T4667] WARNING: CPU: 0 PID: 4667 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) 
| [  398.719308][ T4667] Modules linked in: netdevsim psample act_gact cls_flower vxlan act_mirred cls_matchall ip6_gre gre pktgen xfrm_interface sha1_generic xfrm_user cls_bpf sch_ingress
| [  398.720367][ T4667] Tainted: [W]=WARN
[  398.720527][ T4667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 398.720897][ T4667] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 398.721171][ T4667] 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
[  398.721992][ T4667] RSP: 0018:ffffc90002047528 EFLAGS: 00010246
[  398.722269][ T4667] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  398.722600][ T4667] RDX: 0000000000000000 RSI: ffff88801849acd0 RDI: ffff88801a3e2e38
[  398.723046][ T4667] RBP: ffffffffa4853580 R08: 0000000000000000 R09: fffffbfff44c2504
[  398.723356][ T4667] R10: ffffffffa2612827 R11: ffff88801a3e2300 R12: 0000000000000000
[  398.723661][ T4667] R13: ffff88801849a130 R14: ffff88801849a008 R15: ffff88801849a000
[  398.724136][ T4667] FS:  00007fe389ef71c0(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[  398.724494][ T4667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  398.724913][ T4667] CR2: 00007fe37bf4a6f0 CR3: 0000000005a76004 CR4: 0000000000772ef0
[  398.725221][ T4667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  398.725532][ T4667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  398.725995][ T4667] PKRU: 55555554
[  398.726155][ T4667] Call Trace:
[  398.726315][ T4667]  <TASK>
[ 398.726424][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 398.726635][ T4667] ? __warn (kernel/panic.c:748) 
[ 398.726948][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 398.727166][ T4667] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 398.727381][ T4667] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 398.727541][ T4667] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 398.727907][ T4667] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 398.728132][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 398.728342][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 398.728554][ T4667] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 398.728977][ T4667] ? _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) 
[ 398.729196][ T4667] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 398.729408][ T4667] register_netdevice (net/core/dev.c:11003) 
[ 398.729618][ T4667] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 398.729972][ T4667] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 398.730197][ T4667] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 398.730419][ T4667] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 398.730687][ T4667] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 398.730953][ T4667] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 398.731225][ T4667] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 398.731489][ T4667] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 398.731857][ T4667] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 398.732077][ T4667] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 398.732346][ T4667] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 398.732554][ T4667] ? 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)) 
[ 398.732711][ T4667] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 398.733022][ T4667] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 398.733237][ T4667] __driver_probe_device (drivers/base/dd.c:800) 
[ 398.733447][ T4667] driver_probe_device (drivers/base/dd.c:830) 
[ 398.733655][ T4667] __device_attach_driver (drivers/base/dd.c:959) 
[ 398.733880][ T4667] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 398.734132][ T4667] bus_for_each_drv (drivers/base/bus.c:462) 
[ 398.734339][ T4667] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 398.734543][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 398.734759][ T4667] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 398.734966][ T4667] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 398.735177][ T4667] __device_attach (drivers/base/dd.c:1030) 
[ 398.735387][ T4667] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 398.735590][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 398.735809][ T4667] ? 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) 
[ 398.736023][ T4667] bus_probe_device (drivers/base/bus.c:537) 
[ 398.736232][ T4667] device_add (drivers/base/core.c:3672) 
[ 398.736441][ T4667] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 398.736644][ T4667] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 398.736881][ T4667] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 398.737148][ T4667] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 398.737421][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 398.737625][ T4667] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 398.737847][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 398.738052][ T4667] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 398.738264][ T4667] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 398.738433][ T4667] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 398.738636][ T4667] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 398.738875][ T4667] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:885) 
[ 398.739143][ T4667] ksys_write (fs/read_write.c:731) 
[ 398.739300][ T4667] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 398.739508][ T4667] ? kernfs_fop_llseek (fs/kernfs/file.c:891) 
[ 398.739724][ T4667] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 398.739942][ T4667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  398.740198][ T4667] RIP: 0033:0x7fe38a111b77
[ 398.740409][ T4667] 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
[  398.741124][ T4667] RSP: 002b:00007ffe4453e108 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  398.741470][ T4667] RAX: ffffffffffffffda RBX: 00007fe389ef7140 RCX: 00007fe38a111b77
[  398.741782][ T4667] RDX: 0000000000000009 RSI: 0000562ece3ad0a0 RDI: 0000000000000005
[  398.742088][ T4667] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  398.742395][ T4667] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fe37bd93940
[  398.742702][ T4667] R13: 0000562ece3ad0a0 R14: 0000000000000005 R15: 0000562ecdedb910
| [  411.229785][ T4667] ------------[ cut here ]------------
| [ 411.230180][ T4667] WARNING: CPU: 3 PID: 4667 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) 
| [  411.230589][ T4667] Modules linked in: netdevsim psample act_gact cls_flower vxlan act_mirred cls_matchall ip6_gre gre pktgen xfrm_interface sha1_generic xfrm_user cls_bpf sch_ingress
| [  411.231597][ T4667] Tainted: [W]=WARN
[  411.231775][ T4667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 411.232028][ T4667] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 411.232317][ T4667] 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
[  411.233155][ T4667] RSP: 0018:ffffc90002047528 EFLAGS: 00010246
[  411.233421][ T4667] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  411.233832][ T4667] RDX: 0000000000000000 RSI: ffff888018432cd0 RDI: ffff88801a3e2e38
[  411.234140][ T4667] RBP: ffffffffa4853580 R08: 0000000000000000 R09: fffffbfff44c2504
[  411.234451][ T4667] R10: ffffffffa2612827 R11: ffff88801a3e2300 R12: 0000000000000000
[  411.234897][ T4667] R13: ffff888018432130 R14: ffff888018432008 R15: ffff888018432000
[  411.235193][ T4667] FS:  00007fe389ef71c0(0000) GS:ffff88806cf80000(0000) knlGS:0000000000000000
[  411.235543][ T4667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  411.235802][ T4667] CR2: 00005644eda31008 CR3: 0000000005a76003 CR4: 0000000000772ef0
[  411.236099][ T4667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  411.236392][ T4667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  411.236692][ T4667] PKRU: 55555554
[  411.236859][ T4667] Call Trace:
[  411.237033][ T4667]  <TASK>
[ 411.237142][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 411.237350][ T4667] ? __warn (kernel/panic.c:748) 
[ 411.237511][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 411.237719][ T4667] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 411.237941][ T4667] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 411.238115][ T4667] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 411.238316][ T4667] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 411.238530][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 411.238742][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 411.238950][ T4667] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 411.239198][ T4667] ? _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) 
[ 411.239410][ T4667] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 411.239622][ T4667] register_netdevice (net/core/dev.c:11003) 
[ 411.239856][ T4667] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 411.240085][ T4667] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 411.240304][ T4667] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 411.240526][ T4667] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 411.240803][ T4667] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 411.240972][ T4667] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 411.241244][ T4667] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 411.241508][ T4667] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 411.241784][ T4667] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 411.242013][ T4667] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 411.242270][ T4667] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 411.242477][ T4667] ? 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)) 
[ 411.242629][ T4667] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 411.242850][ T4667] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 411.243056][ T4667] __driver_probe_device (drivers/base/dd.c:800) 
[ 411.243259][ T4667] driver_probe_device (drivers/base/dd.c:830) 
[ 411.243459][ T4667] __device_attach_driver (drivers/base/dd.c:959) 
[ 411.243662][ T4667] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 411.243921][ T4667] bus_for_each_drv (drivers/base/bus.c:462) 
[ 411.244143][ T4667] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 411.244347][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 411.244552][ T4667] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 411.244769][ T4667] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 411.244985][ T4667] __device_attach (drivers/base/dd.c:1030) 
[ 411.245191][ T4667] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 411.245397][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 411.245601][ T4667] ? 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) 
[ 411.245825][ T4667] bus_probe_device (drivers/base/bus.c:537) 
[ 411.246045][ T4667] device_add (drivers/base/core.c:3672) 
[ 411.246247][ T4667] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 411.246446][ T4667] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 411.246658][ T4667] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 411.246957][ T4667] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 411.247229][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 411.247433][ T4667] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 411.247644][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 411.247855][ T4667] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 411.248069][ T4667] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 411.248233][ T4667] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 411.248437][ T4667] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 411.248660][ T4667] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:885) 
[ 411.248937][ T4667] ksys_write (fs/read_write.c:731) 
[ 411.249097][ T4667] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 411.249302][ T4667] ? kernfs_fop_llseek (fs/kernfs/file.c:891) 
[ 411.249518][ T4667] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 411.249726][ T4667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  411.249988][ T4667] RIP: 0033:0x7fe38a111b77
[ 411.250210][ T4667] 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
[  411.250926][ T4667] RSP: 002b:00007ffe4453e108 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  411.251227][ T4667] RAX: ffffffffffffffda RBX: 00007fe389ef7140 RCX: 00007fe38a111b77
[  411.251525][ T4667] RDX: 0000000000000009 RSI: 0000562ece3ad0a0 RDI: 0000000000000005
[  411.251830][ T4667] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  411.252148][ T4667] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fe37bd93940
[  411.252451][ T4667] R13: 0000562ece3ad0a0 R14: 0000000000000005 R15: 0000562ecdedb910
| [  423.684166][ T4667] ------------[ cut here ]------------
| [ 423.684583][ T4667] WARNING: CPU: 2 PID: 4667 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) 
| [  423.685031][ T4667] Modules linked in: netdevsim psample act_gact cls_flower vxlan act_mirred cls_matchall ip6_gre gre pktgen xfrm_interface sha1_generic xfrm_user cls_bpf sch_ingress
| [  423.686229][ T4667] Tainted: [W]=WARN
[  423.686402][ T4667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 423.686680][ T4667] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 423.686978][ T4667] 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
[  423.687703][ T4667] RSP: 0018:ffffc90002047528 EFLAGS: 00010246
[  423.687989][ T4667] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  423.688305][ T4667] RDX: 0000000000000000 RSI: ffff888024b32cd0 RDI: ffff88801a3e2e38
[  423.688672][ T4667] RBP: ffffffffa4853580 R08: 0000000000000000 R09: fffffbfff44c2504
[  423.689099][ T4667] R10: ffffffffa2612827 R11: ffff88801a3e2300 R12: 0000000000000000
[  423.689508][ T4667] R13: ffff888024b32130 R14: ffff888024b32008 R15: ffff888024b32000
[  423.689902][ T4667] FS:  00007fe389ef71c0(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[  423.690281][ T4667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  423.690551][ T4667] CR2: 00007fe37bf4a6f0 CR3: 0000000005a76005 CR4: 0000000000772ef0
[  423.690889][ T4667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  423.691205][ T4667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  423.691534][ T4667] PKRU: 55555554
[  423.691701][ T4667] Call Trace:
[  423.691881][ T4667]  <TASK>
[ 423.692008][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 423.692233][ T4667] ? __warn (kernel/panic.c:748) 
[ 423.692407][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 423.692629][ T4667] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 423.692869][ T4667] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 423.693046][ T4667] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 423.693268][ T4667] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 423.693504][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 423.693727][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 423.693966][ T4667] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 423.694240][ T4667] ? _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) 
[ 423.694463][ T4667] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 423.694694][ T4667] register_netdevice (net/core/dev.c:11003) 
[ 423.694926][ T4667] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 423.695145][ T4667] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 423.695377][ T4667] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 423.695611][ T4667] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 423.695898][ T4667] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 423.696072][ T4667] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 423.696365][ T4667] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 423.696643][ T4667] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 423.696933][ T4667] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 423.697167][ T4667] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 423.697438][ T4667] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 423.697659][ T4667] ? 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)) 
[ 423.697846][ T4667] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 423.698073][ T4667] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 423.698305][ T4667] __driver_probe_device (drivers/base/dd.c:800) 
[ 423.698524][ T4667] driver_probe_device (drivers/base/dd.c:830) 
[ 423.698758][ T4667] __device_attach_driver (drivers/base/dd.c:959) 
[ 423.698979][ T4667] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 423.699246][ T4667] bus_for_each_drv (drivers/base/bus.c:462) 
[ 423.699468][ T4667] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 423.699686][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 423.699915][ T4667] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 423.700141][ T4667] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 423.700366][ T4667] __device_attach (drivers/base/dd.c:1030) 
[ 423.700586][ T4667] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 423.700814][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 423.701046][ T4667] ? 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) 
[ 423.701272][ T4667] bus_probe_device (drivers/base/bus.c:537) 
[ 423.701493][ T4667] device_add (drivers/base/core.c:3672) 
[ 423.701716][ T4667] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 423.701945][ T4667] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 423.702190][ T4667] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 423.702467][ T4667] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 423.702767][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 423.702986][ T4667] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 423.703211][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 423.703424][ T4667] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 423.703650][ T4667] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 423.703839][ T4667] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 423.704060][ T4667] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 423.704297][ T4667] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:885) 
[ 423.704578][ T4667] ksys_write (fs/read_write.c:731) 
[ 423.704763][ T4667] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 423.704984][ T4667] ? kernfs_fop_llseek (fs/kernfs/file.c:891) 
[ 423.705211][ T4667] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 423.705432][ T4667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  423.705698][ T4667] RIP: 0033:0x7fe38a111b77
[ 423.705938][ T4667] 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
[  423.706659][ T4667] RSP: 002b:00007ffe4453e108 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  423.706989][ T4667] RAX: ffffffffffffffda RBX: 00007fe389ef7140 RCX: 00007fe38a111b77
[  423.707312][ T4667] RDX: 0000000000000008 RSI: 0000562ece3ad0a0 RDI: 0000000000000005
[  423.707629][ T4667] RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
[  423.707972][ T4667] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fe37bd93940
[  423.708293][ T4667] R13: 0000562ece3ad0a0 R14: 0000000000000005 R15: 0000562ecdedb910
| [  447.311795][ T4667] ------------[ cut here ]------------
| [ 447.312210][ T4667] WARNING: CPU: 2 PID: 4667 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) 
| [  447.312639][ T4667] Modules linked in: netdevsim psample act_gact cls_flower vxlan act_mirred cls_matchall ip6_gre gre pktgen xfrm_interface sha1_generic xfrm_user cls_bpf sch_ingress
| [  447.313703][ T4667] Tainted: [W]=WARN
[  447.313884][ T4667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 447.314170][ T4667] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 447.314449][ T4667] 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
[  447.315359][ T4667] RSP: 0018:ffffc90002047528 EFLAGS: 00010246
[  447.315635][ T4667] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  447.315970][ T4667] RDX: 0000000000000000 RSI: ffff88801e982cd0 RDI: ffff88801a3e2e38
[  447.316290][ T4667] RBP: ffffffffa4853580 R08: 0000000000000000 R09: fffffbfff44c2504
[  447.316621][ T4667] R10: ffffffffa2612827 R11: ffff88801a3e2300 R12: 0000000000000000
[  447.316965][ T4667] R13: ffff88801e982130 R14: ffff88801e982008 R15: ffff88801e982000
[  447.317278][ T4667] FS:  00007fe389ef71c0(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[  447.317634][ T4667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  447.317961][ T4667] CR2: 00007fe37c8c4810 CR3: 0000000005a76004 CR4: 0000000000772ef0
[  447.318282][ T4667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  447.318598][ T4667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  447.318934][ T4667] PKRU: 55555554
[  447.319104][ T4667] Call Trace:
[  447.319281][ T4667]  <TASK>
[ 447.319398][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 447.319617][ T4667] ? __warn (kernel/panic.c:748) 
[ 447.319796][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 447.320013][ T4667] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 447.320232][ T4667] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 447.320399][ T4667] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 447.320612][ T4667] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 447.320854][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 447.321068][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 447.321293][ T4667] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 447.321560][ T4667] ? _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) 
[ 447.321809][ T4667] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 447.322053][ T4667] register_netdevice (net/core/dev.c:11003) 
[ 447.322278][ T4667] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 447.322494][ T4667] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 447.322744][ T4667] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 447.322980][ T4667] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 447.323265][ T4667] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 447.323460][ T4667] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 447.323756][ T4667] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 447.324035][ T4667] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 447.324321][ T4667] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 447.324557][ T4667] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 447.324834][ T4667] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 447.325050][ T4667] ? 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)) 
[ 447.325217][ T4667] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 447.325439][ T4667] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 447.325662][ T4667] __driver_probe_device (drivers/base/dd.c:800) 
[ 447.325896][ T4667] driver_probe_device (drivers/base/dd.c:830) 
[ 447.326136][ T4667] __device_attach_driver (drivers/base/dd.c:959) 
[ 447.326358][ T4667] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 447.326626][ T4667] bus_for_each_drv (drivers/base/bus.c:462) 
[ 447.326857][ T4667] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 447.327084][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 447.327297][ T4667] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 447.327512][ T4667] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 447.327739][ T4667] __device_attach (drivers/base/dd.c:1030) 
[ 447.327954][ T4667] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 447.328165][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 447.328377][ T4667] ? 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) 
[ 447.328599][ T4667] bus_probe_device (drivers/base/bus.c:537) 
[ 447.328826][ T4667] device_add (drivers/base/core.c:3672) 
[ 447.329049][ T4667] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 447.329258][ T4667] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 447.329484][ T4667] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 447.329768][ T4667] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 447.330066][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 447.330280][ T4667] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 447.330505][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 447.330725][ T4667] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 447.330961][ T4667] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 447.331144][ T4667] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 447.331363][ T4667] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 447.331574][ T4667] ? 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) 
[ 447.331829][ T4667] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 447.332078][ T4667] ksys_write (fs/read_write.c:731) 
[ 447.332249][ T4667] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 447.332472][ T4667] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 447.332702][ T4667] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 447.332935][ T4667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  447.333208][ T4667] RIP: 0033:0x7fe38a111b77
[ 447.333427][ T4667] 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
[  447.334159][ T4667] RSP: 002b:00007ffe4453e2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  447.334480][ T4667] RAX: ffffffffffffffda RBX: 00007fe389ef7140 RCX: 00007fe38a111b77
[  447.334803][ T4667] RDX: 0000000000000009 RSI: 0000562ece3ad0a0 RDI: 0000000000000005
[  447.335120][ T4667] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  447.335446][ T4667] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fe37bd93940
[  447.335763][ T4667] R13: 0000562ece3ad0a0 R14: 0000000000000005 R15: 0000562ecdedb910
| [  474.244980][ T4667] ------------[ cut here ]------------
| [ 474.245366][ T4667] WARNING: CPU: 1 PID: 4667 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) 
| [  474.245888][ T4667] Modules linked in: netdevsim psample act_gact cls_flower vxlan act_mirred cls_matchall ip6_gre gre pktgen xfrm_interface sha1_generic xfrm_user cls_bpf sch_ingress
| [  474.247097][ T4667] Tainted: [W]=WARN
[  474.247258][ T4667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 474.247515][ T4667] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 474.247983][ T4667] 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
[  474.249100][ T4667] RSP: 0018:ffffc90002047528 EFLAGS: 00010246
[  474.249363][ T4667] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  474.249668][ T4667] RDX: 0000000000000000 RSI: ffff88801be2acd0 RDI: ffff88801a3e2e38
[  474.250061][ T4667] RBP: ffffffffa4853580 R08: 0000000000000000 R09: fffffbfff44c2504
[  474.250368][ T4667] R10: ffffffffa2612827 R11: ffff88801a3e2300 R12: 0000000000000000
[  474.250677][ T4667] R13: ffff88801be2a130 R14: ffff88801be2a008 R15: ffff88801be2a000
[  474.250994][ T4667] FS:  00007fe389ef71c0(0000) GS:ffff88806ce80000(0000) knlGS:0000000000000000
[  474.251352][ T4667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  474.251607][ T4667] CR2: 00007fe37c8c4810 CR3: 0000000005a76002 CR4: 0000000000772ef0
[  474.251931][ T4667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  474.252237][ T4667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  474.252548][ T4667] PKRU: 55555554
[  474.252704][ T4667] Call Trace:
[  474.252870][ T4667]  <TASK>
[ 474.252980][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 474.253189][ T4667] ? __warn (kernel/panic.c:748) 
[ 474.253350][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 474.253562][ T4667] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 474.253784][ T4667] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 474.253944][ T4667] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 474.254176][ T4667] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 474.254397][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 474.254605][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 474.254825][ T4667] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 474.255085][ T4667] ? _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) 
[ 474.255296][ T4667] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 474.255507][ T4667] register_netdevice (net/core/dev.c:11003) 
[ 474.255723][ T4667] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 474.255938][ T4667] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 474.256160][ T4667] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 474.256382][ T4667] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 474.256646][ T4667] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 474.256812][ T4667] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 474.257087][ T4667] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 474.257351][ T4667] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 474.257616][ T4667] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 474.257843][ T4667] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 474.258104][ T4667] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 474.258311][ T4667] ? 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)) 
[ 474.258473][ T4667] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 474.258689][ T4667] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 474.258911][ T4667] __driver_probe_device (drivers/base/dd.c:800) 
[ 474.259120][ T4667] driver_probe_device (drivers/base/dd.c:830) 
[ 474.259328][ T4667] __device_attach_driver (drivers/base/dd.c:959) 
[ 474.259540][ T4667] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 474.259801][ T4667] bus_for_each_drv (drivers/base/bus.c:462) 
[ 474.260013][ T4667] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 474.260217][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 474.260421][ T4667] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 474.260623][ T4667] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 474.260844][ T4667] __device_attach (drivers/base/dd.c:1030) 
[ 474.261053][ T4667] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 474.261257][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 474.261466][ T4667] ? 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) 
[ 474.261679][ T4667] bus_probe_device (drivers/base/bus.c:537) 
[ 474.261909][ T4667] device_add (drivers/base/core.c:3672) 
[ 474.262121][ T4667] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 474.262324][ T4667] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 474.262543][ T4667] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 474.262816][ T4667] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 474.263089][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 474.263294][ T4667] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 474.263505][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 474.263708][ T4667] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 474.263931][ T4667] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 474.264096][ T4667] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 474.264307][ T4667] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 474.264514][ T4667] ? 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) 
[ 474.264743][ T4667] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 474.264957][ T4667] ksys_write (fs/read_write.c:731) 
[ 474.265116][ T4667] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 474.265320][ T4667] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 474.265536][ T4667] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 474.265755][ T4667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  474.266010][ T4667] RIP: 0033:0x7fe38a111b77
[ 474.266227][ T4667] 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
[  474.266937][ T4667] RSP: 002b:00007ffe4453e2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  474.267246][ T4667] RAX: ffffffffffffffda RBX: 00007fe389ef7140 RCX: 00007fe38a111b77
[  474.267553][ T4667] RDX: 0000000000000009 RSI: 0000562ece3a0c60 RDI: 0000000000000005
[  474.267868][ T4667] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  474.268173][ T4667] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fe37bd93940
[  474.268475][ T4667] R13: 0000562ece3a0c60 R14: 0000000000000005 R15: 0000562ecdedb910
| [  498.887474][ T4667] ------------[ cut here ]------------
| [ 498.887877][ T4667] WARNING: CPU: 0 PID: 4667 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) 
| [  498.888290][ T4667] Modules linked in: netdevsim psample act_gact cls_flower vxlan act_mirred cls_matchall ip6_gre gre pktgen xfrm_interface sha1_generic xfrm_user cls_bpf sch_ingress
| [  498.889307][ T4667] Tainted: [W]=WARN
[  498.889464][ T4667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 498.889718][ T4667] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 498.889997][ T4667] 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
[  498.890703][ T4667] RSP: 0018:ffffc90002047528 EFLAGS: 00010246
[  498.890971][ T4667] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  498.891279][ T4667] RDX: 0000000000000000 RSI: ffff8880233eacd0 RDI: ffff88801a3e2e38
[  498.891588][ T4667] RBP: ffffffffa4853580 R08: 0000000000000000 R09: fffffbfff44c2504
[  498.891906][ T4667] R10: ffffffffa2612827 R11: ffff88801a3e2300 R12: 0000000000000000
[  498.892211][ T4667] R13: ffff8880233ea130 R14: ffff8880233ea008 R15: ffff8880233ea000
[  498.892512][ T4667] FS:  00007fe389ef71c0(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[  498.892878][ T4667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  498.893256][ T4667] CR2: 00005644eda1bfe8 CR3: 0000000005a76002 CR4: 0000000000772ef0
[  498.893572][ T4667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  498.893899][ T4667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  498.894207][ T4667] PKRU: 55555554
[  498.894368][ T4667] Call Trace:
[  498.894523][ T4667]  <TASK>
[ 498.894629][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 498.894846][ T4667] ? __warn (kernel/panic.c:748) 
[ 498.895007][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 498.895219][ T4667] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 498.895429][ T4667] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 498.895592][ T4667] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 498.895848][ T4667] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 498.896071][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 498.896277][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 498.896491][ T4667] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 498.896764][ T4667] ? _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) 
[ 498.896977][ T4667] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 498.897188][ T4667] register_netdevice (net/core/dev.c:11003) 
[ 498.897401][ T4667] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 498.897608][ T4667] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 498.897836][ T4667] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 498.898057][ T4667] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 498.898326][ T4667] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 498.898488][ T4667] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 498.898774][ T4667] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 498.899041][ T4667] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 498.899306][ T4667] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 498.899525][ T4667] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 498.899798][ T4667] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 498.900007][ T4667] ? 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)) 
[ 498.900164][ T4667] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 498.900380][ T4667] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 498.900592][ T4667] __driver_probe_device (drivers/base/dd.c:800) 
[ 498.900814][ T4667] driver_probe_device (drivers/base/dd.c:830) 
[ 498.901044][ T4667] __device_attach_driver (drivers/base/dd.c:959) 
[ 498.901255][ T4667] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 498.901512][ T4667] bus_for_each_drv (drivers/base/bus.c:462) 
[ 498.901743][ T4667] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 498.901948][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 498.902155][ T4667] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 498.902358][ T4667] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 498.902600][ T4667] __device_attach (drivers/base/dd.c:1030) 
[ 498.902816][ T4667] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 498.903020][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 498.903224][ T4667] ? 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) 
[ 498.903437][ T4667] bus_probe_device (drivers/base/bus.c:537) 
[ 498.903646][ T4667] device_add (drivers/base/core.c:3672) 
[ 498.903862][ T4667] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 498.904069][ T4667] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 498.904287][ T4667] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 498.904553][ T4667] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 498.904828][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 498.905031][ T4667] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 498.905242][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 498.905444][ T4667] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 498.905660][ T4667] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 498.905836][ T4667] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 498.906040][ T4667] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 498.906259][ T4667] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:885) 
[ 498.906522][ T4667] ksys_write (fs/read_write.c:731) 
[ 498.906683][ T4667] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 498.906897][ T4667] ? kernfs_fop_llseek (fs/kernfs/file.c:891) 
[ 498.907117][ T4667] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 498.907324][ T4667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  498.907576][ T4667] RIP: 0033:0x7fe38a111b77
[ 498.907796][ T4667] 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
[  498.908501][ T4667] RSP: 002b:00007ffe4453e2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  498.908817][ T4667] RAX: ffffffffffffffda RBX: 00007fe389ef7140 RCX: 00007fe38a111b77
[  498.909120][ T4667] RDX: 0000000000000009 RSI: 0000562ece3a0c60 RDI: 0000000000000005
[  498.909421][ T4667] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  498.909723][ T4667] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fe37bd93940
[  498.910037][ T4667] R13: 0000562ece3a0c60 R14: 0000000000000005 R15: 0000562ecdedb910
| [  510.097358][ T4667] ------------[ cut here ]------------
| [ 510.097781][ T4667] WARNING: CPU: 1 PID: 4667 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) 
| [  510.098200][ T4667] Modules linked in: netdevsim psample act_gact cls_flower vxlan act_mirred cls_matchall ip6_gre gre pktgen xfrm_interface sha1_generic xfrm_user cls_bpf sch_ingress
| [  510.099385][ T4667] Tainted: [W]=WARN
[  510.099538][ T4667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 510.099812][ T4667] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 510.100075][ T4667] 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
[  510.100795][ T4667] RSP: 0018:ffffc90002047528 EFLAGS: 00010246
[  510.101066][ T4667] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  510.101360][ T4667] RDX: 0000000000000000 RSI: ffff88800fa3acd0 RDI: ffff88801a3e2e38
[  510.101682][ T4667] RBP: ffffffffa4853580 R08: 0000000000000000 R09: fffffbfff44c2504
[  510.102007][ T4667] R10: ffffffffa2612827 R11: ffff88801a3e2300 R12: 0000000000000000
[  510.102312][ T4667] R13: ffff88800fa3a130 R14: ffff88800fa3a008 R15: ffff88800fa3a000
[  510.102625][ T4667] FS:  00007fe389ef71c0(0000) GS:ffff88806ce80000(0000) knlGS:0000000000000000
[  510.102989][ T4667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  510.103253][ T4667] CR2: 00007fe37c957f30 CR3: 0000000005a76005 CR4: 0000000000772ef0
[  510.103561][ T4667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  510.103875][ T4667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  510.104182][ T4667] PKRU: 55555554
[  510.104367][ T4667] Call Trace:
[  510.104522][ T4667]  <TASK>
[ 510.104628][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 510.104845][ T4667] ? __warn (kernel/panic.c:748) 
[ 510.105004][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 510.105217][ T4667] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 510.105424][ T4667] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 510.105579][ T4667] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 510.105790][ T4667] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 510.106010][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 510.106213][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 510.106420][ T4667] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 510.106675][ T4667] ? _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) 
[ 510.106891][ T4667] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 510.107099][ T4667] register_netdevice (net/core/dev.c:11003) 
[ 510.107310][ T4667] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 510.107507][ T4667] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 510.107721][ T4667] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 510.107969][ T4667] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 510.108231][ T4667] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 510.108391][ T4667] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 510.108665][ T4667] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 510.108938][ T4667] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 510.109203][ T4667] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 510.109428][ T4667] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 510.109681][ T4667] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 510.109892][ T4667] ? 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)) 
[ 510.110048][ T4667] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 510.110262][ T4667] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 510.110468][ T4667] __driver_probe_device (drivers/base/dd.c:800) 
[ 510.110671][ T4667] driver_probe_device (drivers/base/dd.c:830) 
[ 510.110884][ T4667] __device_attach_driver (drivers/base/dd.c:959) 
[ 510.111087][ T4667] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 510.111333][ T4667] bus_for_each_drv (drivers/base/bus.c:462) 
[ 510.111537][ T4667] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 510.111775][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 510.111981][ T4667] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 510.112185][ T4667] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 510.112398][ T4667] __device_attach (drivers/base/dd.c:1030) 
[ 510.112603][ T4667] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 510.112814][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 510.113032][ T4667] ? 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) 
[ 510.113245][ T4667] bus_probe_device (drivers/base/bus.c:537) 
[ 510.113449][ T4667] device_add (drivers/base/core.c:3672) 
[ 510.113670][ T4667] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 510.113885][ T4667] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 510.114104][ T4667] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 510.114370][ T4667] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 510.114639][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 510.114856][ T4667] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 510.115073][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 510.115271][ T4667] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 510.115478][ T4667] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 510.115640][ T4667] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 510.115864][ T4667] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 510.116086][ T4667] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:885) 
[ 510.116355][ T4667] ksys_write (fs/read_write.c:731) 
[ 510.116514][ T4667] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 510.116721][ T4667] ? kernfs_fop_llseek (fs/kernfs/file.c:891) 
[ 510.116954][ T4667] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 510.117163][ T4667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  510.117416][ T4667] RIP: 0033:0x7fe38a111b77
[ 510.117625][ T4667] 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
[  510.118344][ T4667] RSP: 002b:00007ffe4453e2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  510.118643][ T4667] RAX: ffffffffffffffda RBX: 00007fe389ef7140 RCX: 00007fe38a111b77
[  510.118945][ T4667] RDX: 0000000000000009 RSI: 0000562ece3a0c60 RDI: 0000000000000005
[  510.119245][ T4667] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  510.119539][ T4667] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fe37bd93940
[  510.119860][ T4667] R13: 0000562ece3a0c60 R14: 0000000000000005 R15: 0000562ecdedb910
| [  520.571436][ T4667] ------------[ cut here ]------------
| [ 520.571820][ T4667] WARNING: CPU: 0 PID: 4667 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) 
| [  520.572248][ T4667] Modules linked in: netdevsim psample act_gact cls_flower vxlan act_mirred cls_matchall ip6_gre gre pktgen xfrm_interface sha1_generic xfrm_user cls_bpf sch_ingress
| [  520.573261][ T4667] Tainted: [W]=WARN
[  520.573419][ T4667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 520.573673][ T4667] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 520.573942][ T4667] 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
[  520.574650][ T4667] RSP: 0018:ffffc90002047528 EFLAGS: 00010246
[  520.574918][ T4667] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  520.575221][ T4667] RDX: 0000000000000000 RSI: ffff88801be2acd0 RDI: ffff88801a3e2e38
[  520.575523][ T4667] RBP: ffffffffa4853580 R08: 0000000000000000 R09: fffffbfff44c2504
[  520.575835][ T4667] R10: ffffffffa2612827 R11: ffff88801a3e2300 R12: 0000000000000000
[  520.576142][ T4667] R13: ffff88801be2a130 R14: ffff88801be2a008 R15: ffff88801be2a000
[  520.576447][ T4667] FS:  00007fe389ef71c0(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[  520.576806][ T4667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  520.577060][ T4667] CR2: 00005644eda57ea0 CR3: 0000000005a76001 CR4: 0000000000772ef0
[  520.577487][ T4667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  520.577800][ T4667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  520.578102][ T4667] PKRU: 55555554
[  520.578258][ T4667] Call Trace:
[  520.578411][ T4667]  <TASK>
[ 520.578516][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 520.578724][ T4667] ? __warn (kernel/panic.c:748) 
[ 520.578898][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 520.579105][ T4667] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 520.579317][ T4667] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 520.579475][ T4667] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 520.579680][ T4667] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 520.579908][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 520.580116][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 520.580332][ T4667] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 520.580593][ T4667] ? _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) 
[ 520.580814][ T4667] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 520.581028][ T4667] register_netdevice (net/core/dev.c:11003) 
[ 520.581237][ T4667] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 520.581439][ T4667] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 520.581675][ T4667] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 520.581906][ T4667] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 520.582168][ T4667] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 520.582327][ T4667] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 520.582596][ T4667] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 520.582866][ T4667] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 520.583132][ T4667] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 520.583354][ T4667] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 520.583614][ T4667] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 520.583830][ T4667] ? 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)) 
[ 520.583989][ T4667] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 520.584205][ T4667] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 520.584417][ T4667] __driver_probe_device (drivers/base/dd.c:800) 
[ 520.584628][ T4667] driver_probe_device (drivers/base/dd.c:830) 
[ 520.584844][ T4667] __device_attach_driver (drivers/base/dd.c:959) 
[ 520.585053][ T4667] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 520.585303][ T4667] bus_for_each_drv (drivers/base/bus.c:462) 
[ 520.585510][ T4667] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 520.585713][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 520.585925][ T4667] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 520.586133][ T4667] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 520.586347][ T4667] __device_attach (drivers/base/dd.c:1030) 
[ 520.586552][ T4667] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 520.586762][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 520.586972][ T4667] ? 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) 
[ 520.587184][ T4667] bus_probe_device (drivers/base/bus.c:537) 
[ 520.587393][ T4667] device_add (drivers/base/core.c:3672) 
[ 520.587602][ T4667] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 520.587818][ T4667] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 520.588035][ T4667] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 520.588300][ T4667] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 520.588569][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 520.588780][ T4667] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 520.588992][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 520.589199][ T4667] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 520.589411][ T4667] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 520.589575][ T4667] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 520.589788][ T4667] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 520.590007][ T4667] ? __pfx___mutex_unlock_slowpath (kernel/locking/mutex.c:885) 
[ 520.590273][ T4667] ksys_write (fs/read_write.c:731) 
[ 520.590431][ T4667] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 520.590637][ T4667] ? kernfs_fop_llseek (fs/kernfs/file.c:891) 
[ 520.590870][ T4667] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 520.591080][ T4667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  520.591331][ T4667] RIP: 0033:0x7fe38a111b77
[ 520.591549][ T4667] 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
[  520.592270][ T4667] RSP: 002b:00007ffe4453e2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  520.592578][ T4667] RAX: ffffffffffffffda RBX: 00007fe389ef7140 RCX: 00007fe38a111b77
[  520.592890][ T4667] RDX: 0000000000000009 RSI: 0000562ece3b9820 RDI: 0000000000000005
[  520.593194][ T4667] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  520.593500][ T4667] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fe37bd93940
[  520.593811][ T4667] R13: 0000562ece3b9820 R14: 0000000000000005 R15: 0000562ecdedb910
| [  530.507318][ T4667] ------------[ cut here ]------------
| [ 530.507681][ T4667] WARNING: CPU: 2 PID: 4667 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) 
| [  530.508429][ T4667] Modules linked in: netdevsim psample act_gact cls_flower vxlan act_mirred cls_matchall ip6_gre gre pktgen xfrm_interface sha1_generic xfrm_user cls_bpf sch_ingress
| [  530.509815][ T4667] Tainted: [W]=WARN
[  530.510145][ T4667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 530.510546][ T4667] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 530.510957][ T4667] 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
[  530.511844][ T4667] RSP: 0018:ffffc90002047528 EFLAGS: 00010246
[  530.512397][ T4667] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  530.512815][ T4667] RDX: 0000000000000000 RSI: ffff8880233eacd0 RDI: ffff88801a3e2e38
[  530.513220][ T4667] RBP: ffffffffa4853580 R08: 0000000000000000 R09: fffffbfff44c2504
[  530.513625][ T4667] R10: ffffffffa2612827 R11: ffff88801a3e2300 R12: 0000000000000000
[  530.514040][ T4667] R13: ffff8880233ea130 R14: ffff8880233ea008 R15: ffff8880233ea000
[  530.514451][ T4667] FS:  00007fe389ef71c0(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[  530.514926][ T4667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  530.515319][ T4667] CR2: 00007fe37c8c4810 CR3: 0000000005a76005 CR4: 0000000000772ef0
[  530.515757][ T4667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  530.516199][ T4667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  530.516585][ T4667] PKRU: 55555554
[  530.516776][ T4667] Call Trace:
[  530.516947][ T4667]  <TASK>
[ 530.517068][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 530.517291][ T4667] ? __warn (kernel/panic.c:748) 
[ 530.517462][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 530.517690][ T4667] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 530.517929][ T4667] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 530.518111][ T4667] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 530.518336][ T4667] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 530.518571][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 530.518806][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 530.519037][ T4667] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 530.519330][ T4667] ? _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) 
[ 530.519560][ T4667] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 530.519798][ T4667] register_netdevice (net/core/dev.c:11003) 
[ 530.520027][ T4667] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 530.520246][ T4667] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 530.520480][ T4667] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 530.520720][ T4667] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 530.521022][ T4667] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 530.521199][ T4667] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 530.521494][ T4667] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 530.521793][ T4667] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 530.522076][ T4667] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 530.522310][ T4667] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 530.522592][ T4667] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 530.522826][ T4667] ? 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)) 
[ 530.523001][ T4667] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 530.523232][ T4667] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 530.523462][ T4667] __driver_probe_device (drivers/base/dd.c:800) 
[ 530.523687][ T4667] driver_probe_device (drivers/base/dd.c:830) 
[ 530.523920][ T4667] __device_attach_driver (drivers/base/dd.c:959) 
[ 530.524150][ T4667] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 530.524416][ T4667] bus_for_each_drv (drivers/base/bus.c:462) 
[ 530.524643][ T4667] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 530.524870][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 530.525094][ T4667] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 530.525312][ T4667] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 530.525542][ T4667] __device_attach (drivers/base/dd.c:1030) 
[ 530.525779][ T4667] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 530.526004][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 530.526224][ T4667] ? 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) 
[ 530.526456][ T4667] bus_probe_device (drivers/base/bus.c:537) 
[ 530.526679][ T4667] device_add (drivers/base/core.c:3672) 
[ 530.526919][ T4667] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 530.527139][ T4667] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 530.527377][ T4667] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 530.527660][ T4667] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 530.528266][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 530.528487][ T4667] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 530.528715][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 530.528946][ T4667] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 530.529307][ T4667] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 530.529495][ T4667] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 530.529721][ T4667] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 530.529951][ T4667] ? 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) 
[ 530.530312][ T4667] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 530.530543][ T4667] ksys_write (fs/read_write.c:731) 
[ 530.530716][ T4667] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 530.530950][ T4667] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 530.531315][ T4667] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 530.531548][ T4667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  530.531828][ T4667] RIP: 0033:0x7fe38a111b77
[ 530.532060][ T4667] 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
[  530.532939][ T4667] RSP: 002b:00007ffe4453e2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  530.533392][ T4667] RAX: ffffffffffffffda RBX: 00007fe389ef7140 RCX: 00007fe38a111b77
[  530.533706][ T4667] RDX: 0000000000000009 RSI: 0000562ece3b9820 RDI: 0000000000000005
[  530.534033][ T4667] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  530.534476][ T4667] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fe37bd93940
[  530.534806][ T4667] R13: 0000562ece3b9820 R14: 0000000000000005 R15: 0000562ecdedb910
| [  530.545558][ T4667] ------------[ cut here ]------------
| [ 530.545872][ T4667] WARNING: CPU: 1 PID: 4667 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) 
| [  530.546276][ T4667] Modules linked in: netdevsim psample act_gact cls_flower vxlan act_mirred cls_matchall ip6_gre gre pktgen xfrm_interface sha1_generic xfrm_user cls_bpf sch_ingress
| [  530.547418][ T4667] Tainted: [W]=WARN
[  530.547574][ T4667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 530.547972][ T4667] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 530.548232][ T4667] 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
[  530.549085][ T4667] RSP: 0018:ffffc90002047528 EFLAGS: 00010246
[  530.549343][ T4667] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  530.549787][ T4667] RDX: 0000000000000000 RSI: ffff88800dcb2cd0 RDI: ffff88801a3e2e38
[  530.550091][ T4667] RBP: ffffffffa4853580 R08: 0000000000000000 R09: fffffbfff44c2504
[  530.550399][ T4667] R10: ffffffffa2612827 R11: ffff88801a3e2300 R12: 0000000000000000
[  530.550843][ T4667] R13: ffff88800dcb2130 R14: ffff88800dcb2008 R15: ffff88800dcb2000
[  530.551148][ T4667] FS:  00007fe389ef71c0(0000) GS:ffff88806ce80000(0000) knlGS:0000000000000000
[  530.551634][ T4667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  530.551926][ T4667] CR2: 00005650adc1b018 CR3: 0000000005a76006 CR4: 0000000000772ef0
[  530.552231][ T4667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  530.552662][ T4667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  530.552974][ T4667] PKRU: 55555554
[  530.553128][ T4667] Call Trace:
[  530.553281][ T4667]  <TASK>
[ 530.553388][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 530.553727][ T4667] ? __warn (kernel/panic.c:748) 
[ 530.553893][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 530.554098][ T4667] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 530.554308][ T4667] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 530.554594][ T4667] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 530.554808][ T4667] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 530.555026][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 530.555236][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 530.555578][ T4667] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 530.555847][ T4667] ? _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) 
[ 530.556059][ T4667] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 530.556270][ T4667] register_netdevice (net/core/dev.c:11003) 
[ 530.556608][ T4667] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 530.556823][ T4667] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 530.557045][ T4667] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 530.557265][ T4667] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 530.557656][ T4667] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 530.557830][ T4667] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 530.558100][ T4667] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 530.558491][ T4667] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 530.558765][ T4667] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 530.558987][ T4667] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 530.559246][ T4667] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 530.559583][ T4667] ? 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)) 
[ 530.559765][ T4667] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 530.559981][ T4667] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 530.560196][ T4667] __driver_probe_device (drivers/base/dd.c:800) 
[ 530.560534][ T4667] driver_probe_device (drivers/base/dd.c:830) 
[ 530.560751][ T4667] __device_attach_driver (drivers/base/dd.c:959) 
[ 530.560959][ T4667] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 530.561212][ T4667] bus_for_each_drv (drivers/base/bus.c:462) 
[ 530.561565][ T4667] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 530.561780][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 530.561991][ T4667] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 530.562198][ T4667] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 530.562539][ T4667] __device_attach (drivers/base/dd.c:1030) 
[ 530.562756][ T4667] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 530.562960][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 530.563167][ T4667] ? 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) 
[ 530.563508][ T4667] bus_probe_device (drivers/base/bus.c:537) 
[ 530.563721][ T4667] device_add (drivers/base/core.c:3672) 
[ 530.563939][ T4667] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 530.564145][ T4667] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 530.564494][ T4667] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 530.564769][ T4667] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 530.565039][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 530.565371][ T4667] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 530.565585][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 530.565798][ T4667] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 530.566010][ T4667] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 530.566174][ T4667] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 530.566512][ T4667] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 530.566715][ T4667] ? 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) 
[ 530.566935][ T4667] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 530.567147][ T4667] ksys_write (fs/read_write.c:731) 
[ 530.567478][ T4667] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 530.567682][ T4667] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 530.567907][ T4667] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 530.568114][ T4667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  530.568493][ T4667] RIP: 0033:0x7fe38a111b77
[ 530.568701][ T4667] 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
[  530.569544][ T4667] RSP: 002b:00007ffe4453e2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  530.569855][ T4667] RAX: ffffffffffffffda RBX: 00007fe389ef7140 RCX: 00007fe38a111b77
[  530.570291][ T4667] RDX: 0000000000000009 RSI: 0000562ece3b9820 RDI: 0000000000000005
[  530.570596][ T4667] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  530.570906][ T4667] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fe37bd93940
[  530.571339][ T4667] R13: 0000562ece3b9820 R14: 0000000000000005 R15: 0000562ecdedb910
| [  530.582307][ T4667] ------------[ cut here ]------------
| [ 530.582526][ T4667] WARNING: CPU: 1 PID: 4667 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) 
| [  530.583764][ T4667] Modules linked in: netdevsim psample act_gact cls_flower vxlan act_mirred cls_matchall ip6_gre gre pktgen xfrm_interface sha1_generic xfrm_user cls_bpf sch_ingress
| [  530.584867][ T4667] Tainted: [W]=WARN
[  530.585024][ T4667] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 530.585281][ T4667] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 530.585541][ T4667] 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
[  530.586345][ T4667] RSP: 0018:ffffc90002047528 EFLAGS: 00010246
[  530.586605][ T4667] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  530.587000][ T4667] RDX: 0000000000000000 RSI: ffff888025ff2cd0 RDI: ffff88801a3e2e38
[  530.587312][ T4667] RBP: ffffffffa4853580 R08: 0000000000000000 R09: fffffbfff44c2504
[  530.587614][ T4667] R10: ffffffffa2612827 R11: ffff88801a3e2300 R12: 0000000000000000
[  530.588011][ T4667] R13: ffff888025ff2130 R14: ffff888025ff2008 R15: ffff888025ff2000
[  530.588316][ T4667] FS:  00007fe389ef71c0(0000) GS:ffff88806ce80000(0000) knlGS:0000000000000000
[  530.588672][ T4667] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  530.589027][ T4667] CR2: 00005650adc1b018 CR3: 0000000005a76006 CR4: 0000000000772ef0
[  530.589335][ T4667] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  530.589637][ T4667] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  530.590035][ T4667] PKRU: 55555554
[  530.590191][ T4667] Call Trace:
[  530.590347][ T4667]  <TASK>
[ 530.590453][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 530.590659][ T4667] ? __warn (kernel/panic.c:748) 
[ 530.590912][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 530.591123][ T4667] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 530.591333][ T4667] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 530.591499][ T4667] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 530.591710][ T4667] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 530.592023][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 530.592233][ T4667] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 530.592445][ T4667] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 530.592706][ T4667] ? _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) 
[ 530.593011][ T4667] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 530.593227][ T4667] register_netdevice (net/core/dev.c:11003) 
[ 530.593437][ T4667] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 530.593641][ T4667] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 530.593959][ T4667] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 530.594181][ T4667] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 530.594443][ T4667] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 530.594601][ T4667] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 530.594972][ T4667] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 530.595240][ T4667] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 530.595507][ T4667] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 530.595725][ T4667] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 530.596080][ T4667] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 530.596287][ T4667] ? 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)) 
[ 530.596448][ T4667] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 530.596662][ T4667] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 530.596967][ T4667] __driver_probe_device (drivers/base/dd.c:800) 
[ 530.597179][ T4667] driver_probe_device (drivers/base/dd.c:830) 
[ 530.597385][ T4667] __device_attach_driver (drivers/base/dd.c:959) 
[ 530.597593][ T4667] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 530.597939][ T4667] bus_for_each_drv (drivers/base/bus.c:462) 
[ 530.598151][ T4667] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 530.598353][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 530.598558][ T4667] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 530.598855][ T4667] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 530.599067][ T4667] __device_attach (drivers/base/dd.c:1030) 
[ 530.599272][ T4667] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 530.599479][ T4667] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 530.599688][ T4667] ? 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) 
[ 530.599993][ T4667] bus_probe_device (drivers/base/bus.c:537) 
[ 530.600205][ T4667] device_add (drivers/base/core.c:3672) 
[ 530.600414][ T4667] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 530.600617][ T4667] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 530.600931][ T4667] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 530.601198][ T4667] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 530.601475][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 530.601679][ T4667] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 530.601984][ T4667] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 530.602191][ T4667] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 530.602403][ T4667] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 530.602567][ T4667] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 530.602873][ T4667] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 530.603082][ T4667] ? 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) 
[ 530.603296][ T4667] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 530.603508][ T4667] ksys_write (fs/read_write.c:731) 
[ 530.603668][ T4667] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 530.603963][ T4667] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 530.604180][ T4667] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 530.604387][ T4667] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  530.604639][ T4667] RIP: 0033:0x7fe38a111b77
[ 530.604943][ T4667] 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
[  530.605644][ T4667] RSP: 002b:00007ffe4453e2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  530.606042][ T4667] RAX: ffffffffffffffda RBX: 00007fe389ef7140 RCX: 00007fe38a111b77
[  530.606352][ T4667] RDX: 0000000000000009 RSI: 0000562ece3b9820 RDI: 0000000000000005
[  530.606653][ T4667] RBP: 0000000000000009 R08: 0000000000000000 R09: 0000000000000000
[  530.607048][ T4667] R10: 0000000000000002 R11: 0000000000000246 R12: 00007fe37bd93940


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