======================================
| [ 4677.867566][T12940] MACsec IEEE 802.1AE
| [ 4680.587352][ T9743] ------------[ cut here ]------------
| [ 4680.587711][ T9743] WARNING: CPU: 0 PID: 9743 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) 
| [ 4680.588379][ T9743] Modules linked in: netdevsim psample macsec sch_htb sctp sch_fq ip6t_rpfilter l2tp_ip6 l2tp_eth l2tp_ip l2tp_netlink l2tp_core pktgen xfrm_interface nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 act_mirred cls_u32 ifb cls_matchall geneve ip6_gre ip_gre gre sha1_generic xfrm_user xt_policy nft_compat nf_tables act_gact cls_flower sch_ingress vxlan [last unloaded: test_bpf]
[ 4680.590249][ T9743] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4680.590518][ T9743] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4680.590780][ T9743] 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
[ 4680.591487][ T9743] RSP: 0018:ffffc90001587528 EFLAGS: 00010246
[ 4680.591745][ T9743] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[ 4680.592077][ T9743] RDX: 0000000000000000 RSI: ffff88800ba22cd0 RDI: ffff88800c4850f8
[ 4680.592398][ T9743] RBP: ffffffffb4c53580 R08: 0000000000000000 R09: fffffbfff6542504
[ 4680.592716][ T9743] R10: ffffffffb2a12827 R11: ffff88800c4845c0 R12: 0000000000000000
[ 4680.593027][ T9743] R13: ffff88800ba22130 R14: ffff88800ba22008 R15: ffff88800ba22000
[ 4680.593369][ T9743] FS:  00007f4ea0a50740(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[ 4680.593744][ T9743] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4680.594005][ T9743] CR2: 0000560c2f589760 CR3: 00000000143a2003 CR4: 0000000000772ef0
[ 4680.594318][ T9743] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4680.594621][ T9743] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 4680.594921][ T9743] PKRU: 55555554
[ 4680.595078][ T9743] Call Trace:
[ 4680.595243][ T9743]  <TASK>
[ 4680.595357][ T9743] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4680.595563][ T9743] ? __warn (kernel/panic.c:748) 
[ 4680.595719][ T9743] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4680.595922][ T9743] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 4680.596131][ T9743] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 4680.596296][ T9743] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 4680.596500][ T9743] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 4680.596716][ T9743] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4680.596924][ T9743] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 4680.597131][ T9743] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 4680.597413][ T9743] ? _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) 
[ 4680.597645][ T9743] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 4680.597858][ T9743] register_netdevice (net/core/dev.c:11003) 
[ 4680.598078][ T9743] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 4680.598300][ T9743] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 4680.598524][ T9743] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 4680.598745][ T9743] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 4680.599011][ T9743] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 4680.599188][ T9743] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 4680.599455][ T9743] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 4680.599883][ T9743] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 4680.600160][ T9743] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 4680.600395][ T9743] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 4680.600664][ T9743] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 4680.600875][ T9743] ? 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)) 
[ 4680.601034][ T9743] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 4680.601263][ T9743] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 4680.601495][ T9743] __driver_probe_device (drivers/base/dd.c:800) 
[ 4680.601702][ T9743] driver_probe_device (drivers/base/dd.c:830) 
[ 4680.601925][ T9743] __device_attach_driver (drivers/base/dd.c:959) 
[ 4680.602136][ T9743] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 4680.602401][ T9743] bus_for_each_drv (drivers/base/bus.c:462) 
[ 4680.602610][ T9743] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 4680.602814][ T9743] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 4680.603025][ T9743] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 4680.603247][ T9743] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 4680.603455][ T9743] __device_attach (drivers/base/dd.c:1030) 
[ 4680.603659][ T9743] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 4680.603860][ T9743] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 4680.604061][ T9743] ? 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) 
[ 4680.604278][ T9743] bus_probe_device (drivers/base/bus.c:537) 
[ 4680.604487][ T9743] device_add (drivers/base/core.c:3672) 
[ 4680.604691][ T9743] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 4680.604889][ T9743] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 4680.605102][ T9743] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 4680.605371][ T9743] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 4680.605636][ T9743] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 4680.605836][ T9743] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 4680.606045][ T9743] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 4680.606271][ T9743] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 4680.606488][ T9743] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 4680.606653][ T9743] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 4680.606865][ T9743] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 4680.607069][ T9743] ? 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) 
[ 4680.607293][ T9743] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 4680.607521][ T9743] ksys_write (fs/read_write.c:731) 
[ 4680.607677][ T9743] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 4680.607876][ T9743] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 4680.608112][ T9743] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 4680.608329][ T9743] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 4680.608583][ T9743] RIP: 0033:0x7f4ea0b91b77
[ 4680.608798][ T9743] 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
[ 4680.609530][ T9743] RSP: 002b:00007ffc508a4328 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 4680.609857][ T9743] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f4ea0b91b77
[ 4680.610176][ T9743] RDX: 0000000000000002 RSI: 0000560c2f589760 RDI: 0000000000000001
[ 4680.610489][ T9743] RBP: 0000560c2f589760 R08: 0000000000000000 R09: 00007f4ea0c044e0
[ 4680.610798][ T9743] R10: 00007f4ea0c043e0 R11: 0000000000000246 R12: 0000000000000002
[ 4680.611113][ T9743] R13: 00007f4ea0c4d760 R14: 0000000000000002 R15: 00007f4ea0c489c0
| [ 4687.248715][ T9743] ------------[ cut here ]------------
| [ 4687.249096][ T9743] WARNING: CPU: 1 PID: 9743 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) 
| [ 4687.249546][ T9743] Modules linked in: netdevsim psample macsec sch_htb sctp sch_fq ip6t_rpfilter l2tp_ip6 l2tp_eth l2tp_ip l2tp_netlink l2tp_core pktgen xfrm_interface nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 act_mirred cls_u32 ifb cls_matchall geneve ip6_gre ip_gre gre sha1_generic xfrm_user xt_policy nft_compat nf_tables act_gact cls_flower sch_ingress vxlan [last unloaded: netdevsim]
| [ 4687.251665][ T9743] Tainted: [W]=WARN
[ 4687.251851][ T9743] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4687.252112][ T9743] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4687.252394][ T9743] 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
[ 4687.253104][ T9743] RSP: 0018:ffffc90001587528 EFLAGS: 00010246
[ 4687.253410][ T9743] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[ 4687.253735][ T9743] RDX: 0000000000000000 RSI: ffff8880114f2cd0 RDI: ffff88800c4850f8
[ 4687.254048][ T9743] RBP: ffffffffb4c53580 R08: 0000000000000000 R09: fffffbfff6542504
[ 4687.254454][ T9743] R10: ffffffffb2a12827 R11: ffff88800c4845c0 R12: 0000000000000000
[ 4687.254762][ T9743] R13: ffff8880114f2130 R14: ffff8880114f2008 R15: ffff8880114f2000
[ 4687.255069][ T9743] FS:  00007f4ea0a50740(0000) GS:ffff88806ce80000(0000) knlGS:0000000000000000
[ 4687.255496][ T9743] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4687.255757][ T9743] CR2: 00007ff5c56a2aa0 CR3: 00000000143a2005 CR4: 0000000000772ef0
[ 4687.256062][ T9743] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4687.256380][ T9743] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 4687.256689][ T9743] PKRU: 55555554
[ 4687.256846][ T9743] Call Trace:
[ 4687.257009][ T9743]  <TASK>
[ 4687.257114][ T9743] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4687.257335][ T9743] ? __warn (kernel/panic.c:748) 
[ 4687.257512][ T9743] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4687.257723][ T9743] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 4687.257935][ T9743] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 4687.258098][ T9743] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 4687.258316][ T9743] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 4687.258542][ T9743] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4687.258752][ T9743] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 4687.258976][ T9743] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 4687.259245][ T9743] ? _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) 
[ 4687.259475][ T9743] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 4687.259693][ T9743] register_netdevice (net/core/dev.c:11003) 
[ 4687.259907][ T9743] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 4687.260113][ T9743] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 4687.260343][ T9743] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 4687.260575][ T9743] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 4687.260834][ T9743] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 4687.260992][ T9743] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 4687.261279][ T9743] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 4687.261569][ T9743] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 4687.261836][ T9743] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 4687.262064][ T9743] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 4687.262336][ T9743] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 4687.262546][ T9743] ? 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)) 
[ 4687.262707][ T9743] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 4687.262923][ T9743] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 4687.263157][ T9743] __driver_probe_device (drivers/base/dd.c:800) 
[ 4687.263384][ T9743] driver_probe_device (drivers/base/dd.c:830) 
[ 4687.263594][ T9743] __device_attach_driver (drivers/base/dd.c:959) 
[ 4687.263806][ T9743] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 4687.264086][ T9743] bus_for_each_drv (drivers/base/bus.c:462) 
[ 4687.264326][ T9743] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 4687.264534][ T9743] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 4687.264741][ T9743] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 4687.264955][ T9743] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 4687.265193][ T9743] __device_attach (drivers/base/dd.c:1030) 
[ 4687.265402][ T9743] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 4687.265609][ T9743] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 4687.265824][ T9743] ? 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) 
[ 4687.266040][ T9743] bus_probe_device (drivers/base/bus.c:537) 
[ 4687.266262][ T9743] device_add (drivers/base/core.c:3672) 
[ 4687.266483][ T9743] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 4687.266686][ T9743] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 4687.266898][ T9743] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 4687.267169][ T9743] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 4687.267468][ T9743] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 4687.267674][ T9743] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 4687.267888][ T9743] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 4687.268093][ T9743] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 4687.268316][ T9743] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 4687.268503][ T9743] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 4687.268710][ T9743] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 4687.268914][ T9743] ? 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) 
[ 4687.269122][ T9743] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 4687.269350][ T9743] ksys_write (fs/read_write.c:731) 
[ 4687.269534][ T9743] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 4687.269737][ T9743] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 4687.269955][ T9743] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 4687.270174][ T9743] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 4687.270433][ T9743] RIP: 0033:0x7f4ea0b91b77
[ 4687.270654][ T9743] 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
[ 4687.271372][ T9743] RSP: 002b:00007ffc508a4f08 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 4687.271683][ T9743] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f4ea0b91b77
[ 4687.271996][ T9743] RDX: 0000000000000005 RSI: 0000560c2f589760 RDI: 0000000000000001
[ 4687.272309][ T9743] RBP: 0000560c2f589760 R08: 0000000000000000 R09: 00007f4ea0c044e0
[ 4687.272611][ T9743] R10: 00007f4ea0c043e0 R11: 0000000000000246 R12: 0000000000000005
[ 4687.272913][ T9743] R13: 00007f4ea0c4d760 R14: 0000000000000005 R15: 00007f4ea0c489c0
| [ 4687.291763][ T9743] ------------[ cut here ]------------
| [ 4687.292127][ T9743] WARNING: CPU: 0 PID: 9743 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) 
| [ 4687.292703][ T9743] Modules linked in: netdevsim psample macsec sch_htb sctp sch_fq ip6t_rpfilter l2tp_ip6 l2tp_eth l2tp_ip l2tp_netlink l2tp_core pktgen xfrm_interface nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 act_mirred cls_u32 ifb cls_matchall geneve ip6_gre ip_gre gre sha1_generic xfrm_user xt_policy nft_compat nf_tables act_gact cls_flower sch_ingress vxlan [last unloaded: netdevsim]
| [ 4687.294714][ T9743] Tainted: [W]=WARN
[ 4687.294871][ T9743] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4687.295241][ T9743] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4687.295513][ T9743] 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
[ 4687.296254][ T9743] RSP: 0018:ffffc90001587528 EFLAGS: 00010246
[ 4687.296521][ T9743] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[ 4687.296835][ T9743] RDX: 0000000000000000 RSI: ffff888015532cd0 RDI: ffff88800c4850f8
[ 4687.297154][ T9743] RBP: ffffffffb4c53580 R08: 0000000000000000 R09: fffffbfff6542504
[ 4687.297473][ T9743] R10: ffffffffb2a12827 R11: ffff88800c4845c0 R12: 0000000000000000
[ 4687.297775][ T9743] R13: ffff888015532130 R14: ffff888015532008 R15: ffff888015532000
[ 4687.298082][ T9743] FS:  00007f4ea0a50740(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[ 4687.298442][ T9743] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4687.298714][ T9743] CR2: 00007f4ea0bf1c8c CR3: 00000000143a2001 CR4: 0000000000772ef0
[ 4687.299028][ T9743] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4687.299354][ T9743] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 4687.299665][ T9743] PKRU: 55555554
[ 4687.299823][ T9743] Call Trace:
[ 4687.299980][ T9743]  <TASK>
[ 4687.300089][ T9743] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4687.300310][ T9743] ? __warn (kernel/panic.c:748) 
[ 4687.300472][ T9743] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4687.300698][ T9743] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 4687.300907][ T9743] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 4687.301066][ T9743] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 4687.301299][ T9743] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 4687.301525][ T9743] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4687.301736][ T9743] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 4687.301968][ T9743] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 4687.302242][ T9743] ? _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) 
[ 4687.302463][ T9743] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 4687.302679][ T9743] register_netdevice (net/core/dev.c:11003) 
[ 4687.302894][ T9743] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 4687.303110][ T9743] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 4687.303360][ T9743] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 4687.303592][ T9743] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 4687.303862][ T9743] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 4687.304024][ T9743] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 4687.304308][ T9743] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 4687.304588][ T9743] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 4687.304850][ T9743] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 4687.305087][ T9743] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 4687.305366][ T9743] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 4687.305578][ T9743] ? 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)) 
[ 4687.305737][ T9743] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 4687.305956][ T9743] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 4687.306190][ T9743] __driver_probe_device (drivers/base/dd.c:800) 
[ 4687.306397][ T9743] driver_probe_device (drivers/base/dd.c:830) 
[ 4687.306605][ T9743] __device_attach_driver (drivers/base/dd.c:959) 
[ 4687.306834][ T9743] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 4687.307092][ T9743] bus_for_each_drv (drivers/base/bus.c:462) 
[ 4687.307311][ T9743] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 4687.307517][ T9743] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 4687.307729][ T9743] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 4687.307936][ T9743] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 4687.308162][ T9743] __device_attach (drivers/base/dd.c:1030) 
[ 4687.308378][ T9743] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 4687.308588][ T9743] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 4687.308796][ T9743] ? 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) 
[ 4687.309018][ T9743] bus_probe_device (drivers/base/bus.c:537) 
[ 4687.309241][ T9743] device_add (drivers/base/core.c:3672) 
[ 4687.309455][ T9743] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 4687.309663][ T9743] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 4687.309888][ T9743] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 4687.310171][ T9743] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 4687.310447][ T9743] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 4687.310654][ T9743] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 4687.310870][ T9743] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 4687.311079][ T9743] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 4687.311304][ T9743] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 4687.311477][ T9743] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 4687.311693][ T9743] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 4687.311919][ T9743] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 4687.312139][ T9743] ksys_write (fs/read_write.c:731) 
[ 4687.312310][ T9743] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 4687.312533][ T9743] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 4687.312745][ T9743] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 4687.313007][ T9743] RIP: 0033:0x7f4ea0b91b77
[ 4687.313228][ T9743] 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
[ 4687.313944][ T9743] RSP: 002b:00007ffc508a5168 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 4687.314266][ T9743] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f4ea0b91b77
[ 4687.314579][ T9743] RDX: 0000000000000005 RSI: 0000560c2f589760 RDI: 0000000000000001
[ 4687.314889][ T9743] RBP: 0000560c2f589760 R08: 0000000000000000 R09: 00007f4ea0c044e0
[ 4687.315205][ T9743] R10: 00007f4ea0c043e0 R11: 0000000000000246 R12: 0000000000000005


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