======================================
| [  222.435832][ T5232] Initializing XFRM netlink socket
| [  224.969185][ T2023] ------------[ cut here ]------------
| [ 224.969578][ T2023] WARNING: CPU: 0 PID: 2023 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) 
| [  224.970014][ T2023] Modules linked in: netdevsim psample xfrm_user macsec vxlan ip6_gre ip_gre gre cls_u32 sch_htb bonding sch_fq [last unloaded: test_bpf]
[  224.971095][ T2023] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 224.971365][ T2023] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 224.971649][ T2023] 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
[  224.972415][ T2023] RSP: 0018:ffffc90000f87528 EFLAGS: 00010246
[  224.972701][ T2023] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  224.973026][ T2023] RDX: 0000000000000000 RSI: ffff8880198a2cd0 RDI: ffff8880181b2e38
[  224.973350][ T2023] RBP: ffffffff8fc53580 R08: 0000000000000000 R09: fffffbfff1b42504
[  224.973685][ T2023] R10: ffffffff8da12827 R11: ffff8880181b2300 R12: 0000000000000000
[  224.973998][ T2023] R13: ffff8880198a2130 R14: ffff8880198a2008 R15: ffff8880198a2000
[  224.974304][ T2023] FS:  00007ff64888d740(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[  224.974678][ T2023] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  224.974942][ T2023] CR2: 00007ff648929f00 CR3: 000000001373e004 CR4: 0000000000772ef0
[  224.975252][ T2023] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  224.975570][ T2023] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  224.975910][ T2023] PKRU: 55555554
[  224.976080][ T2023] Call Trace:
[  224.976245][ T2023]  <TASK>
[ 224.976360][ T2023] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 224.976588][ T2023] ? __warn (kernel/panic.c:748) 
[ 224.976760][ T2023] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 224.976979][ T2023] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 224.977198][ T2023] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 224.977356][ T2023] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 224.977574][ T2023] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 224.977797][ T2023] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 224.978007][ T2023] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 224.978219][ T2023] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 224.978482][ T2023] ? _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) 
[ 224.978704][ T2023] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 224.978917][ T2023] register_netdevice (net/core/dev.c:11003) 
[ 224.979166][ T2023] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 224.979384][ T2023] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 224.979622][ T2023] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 224.979855][ T2023] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 224.980131][ T2023] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 224.980305][ T2023] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 224.980589][ T2023] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 224.980856][ T2023] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 224.981121][ T2023] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 224.981339][ T2023] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 224.981611][ T2023] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 224.981838][ T2023] ? 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)) 
[ 224.982004][ T2023] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 224.982232][ T2023] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 224.982456][ T2023] __driver_probe_device (drivers/base/dd.c:800) 
[ 224.982683][ T2023] driver_probe_device (drivers/base/dd.c:830) 
[ 224.982900][ T2023] __device_attach_driver (drivers/base/dd.c:959) 
[ 224.983123][ T2023] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 224.983377][ T2023] bus_for_each_drv (drivers/base/bus.c:462) 
[ 224.983596][ T2023] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 224.983806][ T2023] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 224.984015][ T2023] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 224.984222][ T2023] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 224.984434][ T2023] __device_attach (drivers/base/dd.c:1030) 
[ 224.984650][ T2023] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 224.984857][ T2023] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 224.985064][ T2023] ? 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) 
[ 224.985283][ T2023] bus_probe_device (drivers/base/bus.c:537) 
[ 224.985496][ T2023] device_add (drivers/base/core.c:3672) 
[ 224.985716][ T2023] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 224.985921][ T2023] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 224.986140][ T2023] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 224.986411][ T2023] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 224.986688][ T2023] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 224.986919][ T2023] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 224.987141][ T2023] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 224.987354][ T2023] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 224.987584][ T2023] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 224.987757][ T2023] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 224.987991][ T2023] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 224.988194][ T2023] ? 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) 
[ 224.988410][ T2023] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 224.988633][ T2023] ksys_write (fs/read_write.c:731) 
[ 224.988794][ T2023] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 224.988999][ T2023] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 224.989229][ T2023] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 224.989439][ T2023] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  224.989741][ T2023] RIP: 0033:0x7ff6489ceb77
[ 224.989974][ T2023] 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
[  224.990751][ T2023] RSP: 002b:00007ffc922ba988 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  224.991074][ T2023] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007ff6489ceb77
[  224.991386][ T2023] RDX: 0000000000000002 RSI: 00005641089ca760 RDI: 0000000000000001
[  224.991706][ T2023] RBP: 00005641089ca760 R08: 0000000000000000 R09: 00007ff648a414e0
[  224.992016][ T2023] R10: 00007ff648a413e0 R11: 0000000000000246 R12: 0000000000000002
[  224.992329][ T2023] R13: 00007ff648a8a760 R14: 0000000000000002 R15: 00007ff648a859c0
| [  231.715385][ T2023] ------------[ cut here ]------------
| [ 231.715933][ T2023] WARNING: CPU: 0 PID: 2023 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) 
| [  231.716395][ T2023] Modules linked in: netdevsim psample xfrm_user macsec vxlan ip6_gre ip_gre gre cls_u32 sch_htb bonding sch_fq [last unloaded: netdevsim]
| [  231.717897][ T2023] Tainted: [W]=WARN
[  231.718097][ T2023] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 231.718384][ T2023] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 231.718845][ T2023] 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
[  231.719770][ T2023] RSP: 0018:ffffc90000f87528 EFLAGS: 00010246
[  231.720057][ T2023] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  231.720395][ T2023] RDX: 0000000000000000 RSI: ffff88801bea2cd0 RDI: ffff8880181b2e38
[  231.720893][ T2023] RBP: ffffffff8fc53580 R08: 0000000000000000 R09: fffffbfff1b42504
[  231.721226][ T2023] R10: ffffffff8da12827 R11: ffff8880181b2300 R12: 0000000000000000
[  231.721570][ T2023] R13: ffff88801bea2130 R14: ffff88801bea2008 R15: ffff88801bea2000
[  231.721890][ T2023] FS:  00007ff64888d740(0000) GS:ffff88806ce00000(0000) knlGS:0000000000000000
[  231.722258][ T2023] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  231.722526][ T2023] CR2: 00005641089ca760 CR3: 000000001373e005 CR4: 0000000000772ef0
[  231.722860][ T2023] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  231.723185][ T2023] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  231.723510][ T2023] PKRU: 55555554
[  231.723683][ T2023] Call Trace:
[  231.723847][ T2023]  <TASK>
[ 231.723967][ T2023] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 231.724187][ T2023] ? __warn (kernel/panic.c:748) 
[ 231.724380][ T2023] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 231.724623][ T2023] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 231.724856][ T2023] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 231.725029][ T2023] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 231.725277][ T2023] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 231.725533][ T2023] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 231.725777][ T2023] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 231.726008][ T2023] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 231.726293][ T2023] ? _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) 
[ 231.726529][ T2023] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 231.726762][ T2023] register_netdevice (net/core/dev.c:11003) 
[ 231.726991][ T2023] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 231.727212][ T2023] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 231.727444][ T2023] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 231.727687][ T2023] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 231.727968][ T2023] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 231.728158][ T2023] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 231.728457][ T2023] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 231.728763][ T2023] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 231.729054][ T2023] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 231.729302][ T2023] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 231.729600][ T2023] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 231.729830][ T2023] ? 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)) 
[ 231.730005][ T2023] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 231.730243][ T2023] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 231.730486][ T2023] __driver_probe_device (drivers/base/dd.c:800) 
[ 231.730723][ T2023] driver_probe_device (drivers/base/dd.c:830) 
[ 231.730943][ T2023] __device_attach_driver (drivers/base/dd.c:959) 
[ 231.731167][ T2023] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 231.731458][ T2023] bus_for_each_drv (drivers/base/bus.c:462) 
[ 231.731699][ T2023] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 231.731927][ T2023] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 231.732159][ T2023] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 231.732384][ T2023] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 231.732637][ T2023] __device_attach (drivers/base/dd.c:1030) 
[ 231.732858][ T2023] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 231.733075][ T2023] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 231.733293][ T2023] ? 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) 
[ 231.733520][ T2023] bus_probe_device (drivers/base/bus.c:537) 
[ 231.733754][ T2023] device_add (drivers/base/core.c:3672) 
[ 231.733978][ T2023] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 231.734194][ T2023] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 231.734422][ T2023] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 231.734712][ T2023] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 231.735019][ T2023] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 231.735246][ T2023] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 231.735481][ T2023] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 231.735710][ T2023] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 231.735935][ T2023] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 231.736113][ T2023] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 231.736329][ T2023] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 231.736552][ T2023] ? 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) 
[ 231.736780][ T2023] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 231.737010][ T2023] ksys_write (fs/read_write.c:731) 
[ 231.737177][ T2023] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 231.737392][ T2023] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 231.737649][ T2023] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 231.737879][ T2023] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  231.738160][ T2023] RIP: 0033:0x7ff6489ceb77
[ 231.738394][ T2023] 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
[  231.739201][ T2023] RSP: 002b:00007ffc922bb568 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  231.739549][ T2023] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007ff6489ceb77
[  231.739884][ T2023] RDX: 0000000000000005 RSI: 00005641089ca760 RDI: 0000000000000001
[  231.740229][ T2023] RBP: 00005641089ca760 R08: 0000000000000000 R09: 00007ff648a414e0
[  231.740574][ T2023] R10: 00007ff648a413e0 R11: 0000000000000246 R12: 0000000000000005
[  231.740900][ T2023] R13: 00007ff648a8a760 R14: 0000000000000005 R15: 00007ff648a859c0
| [  231.763433][ T2023] ------------[ cut here ]------------
| [ 231.763875][ T2023] WARNING: CPU: 1 PID: 2023 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) 
| [  231.764329][ T2023] Modules linked in: netdevsim psample xfrm_user macsec vxlan ip6_gre ip_gre gre cls_u32 sch_htb bonding sch_fq [last unloaded: netdevsim]
| [  231.765567][ T2023] Tainted: [W]=WARN
[  231.765733][ T2023] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 231.766010][ T2023] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 231.766290][ T2023] 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
[  231.767056][ T2023] RSP: 0018:ffffc90000f87528 EFLAGS: 00010246
[  231.767339][ T2023] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  231.767671][ T2023] RDX: 0000000000000000 RSI: ffff88800cb4acd0 RDI: ffff8880181b2e38
[  231.768000][ T2023] RBP: ffffffff8fc53580 R08: 0000000000000000 R09: fffffbfff1b42504
[  231.768324][ T2023] R10: ffffffff8da12827 R11: ffff8880181b2300 R12: 0000000000000000
[  231.768663][ T2023] R13: ffff88800cb4a130 R14: ffff88800cb4a008 R15: ffff88800cb4a000
[  231.768990][ T2023] FS:  00007ff64888d740(0000) GS:ffff88806ce80000(0000) knlGS:0000000000000000
[  231.769390][ T2023] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  231.769672][ T2023] CR2: 00007ff648a2ec8c CR3: 000000001373e003 CR4: 0000000000772ef0
[  231.770000][ T2023] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  231.770338][ T2023] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  231.770672][ T2023] PKRU: 55555554
[  231.770841][ T2023] Call Trace:
[  231.771010][ T2023]  <TASK>
[ 231.771125][ T2023] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 231.771352][ T2023] ? __warn (kernel/panic.c:748) 
[ 231.771523][ T2023] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 231.771762][ T2023] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 231.771991][ T2023] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 231.772169][ T2023] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 231.772389][ T2023] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 231.772633][ T2023] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 231.772857][ T2023] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 231.773082][ T2023] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 231.773366][ T2023] ? _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) 
[ 231.773615][ T2023] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 231.773844][ T2023] register_netdevice (net/core/dev.c:11003) 
[ 231.774072][ T2023] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 231.774288][ T2023] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 231.774525][ T2023] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 231.774791][ T2023] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 231.775074][ T2023] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 231.775247][ T2023] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 231.775528][ T2023] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 231.775818][ T2023] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 231.776148][ T2023] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 231.776373][ T2023] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 231.776657][ T2023] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 231.776870][ T2023] ? 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)) 
[ 231.777032][ T2023] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 231.777251][ T2023] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 231.777471][ T2023] __driver_probe_device (drivers/base/dd.c:800) 
[ 231.777695][ T2023] driver_probe_device (drivers/base/dd.c:830) 
[ 231.777908][ T2023] __device_attach_driver (drivers/base/dd.c:959) 
[ 231.778126][ T2023] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 231.778386][ T2023] bus_for_each_drv (drivers/base/bus.c:462) 
[ 231.778609][ T2023] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 231.778818][ T2023] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 231.779032][ T2023] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 231.779267][ T2023] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 231.779488][ T2023] __device_attach (drivers/base/dd.c:1030) 
[ 231.779712][ T2023] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 231.779923][ T2023] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 231.780134][ T2023] ? 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) 
[ 231.780350][ T2023] bus_probe_device (drivers/base/bus.c:537) 
[ 231.780574][ T2023] device_add (drivers/base/core.c:3672) 
[ 231.780789][ T2023] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 231.780997][ T2023] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 231.781225][ T2023] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 231.781511][ T2023] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 231.781798][ T2023] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 231.782010][ T2023] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 231.782228][ T2023] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 231.782436][ T2023] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 231.782670][ T2023] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 231.782852][ T2023] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 231.783072][ T2023] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 231.783291][ T2023] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 231.783511][ T2023] ksys_write (fs/read_write.c:731) 
[ 231.783683][ T2023] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 231.783905][ T2023] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 231.784117][ T2023] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  231.784381][ T2023] RIP: 0033:0x7ff6489ceb77
[ 231.784604][ T2023] 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
[  231.785320][ T2023] RSP: 002b:00007ffc922bb7c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  231.785646][ T2023] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007ff6489ceb77
[  231.785961][ T2023] RDX: 0000000000000005 RSI: 00005641089ca760 RDI: 0000000000000001
[  231.786270][ T2023] RBP: 00005641089ca760 R08: 0000000000000000 R09: 00007ff648a414e0
[  231.786600][ T2023] R10: 00007ff648a413e0 R11: 0000000000000246 R12: 0000000000000005


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