======================================
| 0
| xx__-> [    9.061721][  T228] ------------[ cut here ]------------
| [ 9.062107][ T228] WARNING: CPU: 2 PID: 228 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) 
| [    9.062548][  T228] Modules linked in: netdevsim
[    9.063319][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 9.063607][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.063892][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[    9.064641][  T228] RSP: 0018:ffffc90000ab7520 EFLAGS: 00010246
[    9.064939][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[    9.065285][  T228] RDX: 0000000000000000 RSI: ffff8880051cac98 RDI: ffff8880050fd0f8
[    9.065636][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[    9.065973][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[    9.066318][  T228] R13: ffff8880051ca128 R14: ffff8880051ca008 R15: ffff8880051ca000
[    9.066635][  T228] FS:  00007fa583208740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[    9.067001][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.067282][  T228] CR2: 00005623ead94338 CR3: 000000000b2e6005 CR4: 0000000000772ef0
[    9.067600][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    9.067920][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    9.068247][  T228] PKRU: 55555554
[    9.068420][  T228] Call Trace:
[    9.068591][  T228]  <TASK>
[ 9.068715][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.068939][ T228] ? __warn (kernel/panic.c:748) 
[ 9.069120][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.069342][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 9.069565][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 9.069735][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 9.069949][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 9.070192][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 9.070419][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 9.070695][ T228] ? _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) 
[ 9.070918][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 9.071190][ T228] register_netdevice (net/core/dev.c:11003) 
[ 9.071416][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 9.071644][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 9.071875][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 9.072157][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 9.072329][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 9.072612][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 9.072888][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 9.073177][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 9.073407][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 9.073674][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 9.073896][ T228] ? 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)) 
[ 9.074062][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 9.074305][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 9.074528][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 9.074748][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 9.074973][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 9.075207][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 9.075468][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 9.075687][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 9.075905][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.076135][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 9.076349][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 9.076573][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 9.076790][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 9.077002][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 9.077229][ T228] ? 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) 
[ 9.077458][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 9.077680][ T228] device_add (drivers/base/core.c:3672) 
[ 9.077901][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 9.078130][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 9.078356][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 9.078634][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 9.078911][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.079141][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 9.079370][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 9.079589][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 9.079809][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 9.079986][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 9.080220][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 9.080438][ T228] ? 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) 
[ 9.080667][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 9.080889][ T228] ksys_write (fs/read_write.c:731) 
[ 9.081060][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 9.081284][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 9.081513][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 9.081729][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    9.081994][  T228] RIP: 0033:0x7fa583349b77
[ 9.082245][ T228] 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
[    9.082960][  T228] RSP: 002b:00007ffdbc0e4498 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    9.083294][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa583349b77
[    9.083615][  T228] RDX: 0000000000000004 RSI: 00005623ead93330 RDI: 0000000000000001
[    9.083929][  T228] RBP: 00005623ead93330 R08: 0000000000000003 R09: 0000000000000077
[    9.084257][  T228] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000004
[    9.084572][  T228] R13: 00007fa583405760 R14: 0000000000000004 R15: 00007fa5834009c0
| [   13.946955][  T228] ------------[ cut here ]------------
| [ 13.947305][ T228] WARNING: CPU: 1 PID: 228 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) 
| [   13.947678][  T228] Modules linked in: netdevsim [last unloaded: ip6_udp_tunnel]
| [   13.948338][  T228] Tainted: [W]=WARN
[   13.948502][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 13.948734][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 13.948969][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   13.949697][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[   13.949933][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   13.950293][  T228] RDX: 0000000000000000 RSI: ffff88800d6b2c98 RDI: ffff8880050fd0a8
[   13.950567][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   13.950851][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   13.951334][  T228] R13: ffff88800d6b2128 R14: ffff88800d6b2008 R15: ffff88800d6b2000
[   13.951609][  T228] FS:  00007fa583208740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   13.951929][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   13.952241][  T228] CR2: 00005623ead93330 CR3: 000000000b2e6005 CR4: 0000000000772ef0
[   13.952531][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   13.952804][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   13.953077][  T228] PKRU: 55555554
[   13.953374][  T228] Call Trace:
[   13.953516][  T228]  <TASK>
[ 13.953614][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 13.953805][ T228] ? __warn (kernel/panic.c:748) 
[ 13.953951][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 13.954234][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 13.954429][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 13.954577][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 13.954765][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 13.954978][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 13.955208][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 13.955450][ T228] ? _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) 
[ 13.955641][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 13.955832][ T228] register_netdevice (net/core/dev.c:11003) 
[ 13.956023][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 13.956230][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 13.956433][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 13.956678][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 13.956934][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 13.957184][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 13.957371][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 13.957568][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 13.957804][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 13.957994][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 13.958192][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 13.958381][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 13.958570][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 13.958720][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 13.958946][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 13.959151][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 13.959346][ T228] ksys_write (fs/read_write.c:731) 
[ 13.959493][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 13.959691][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 13.959878][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   13.960113][  T228] RIP: 0033:0x7fa583349b77
[ 13.960306][ T228] 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
[   13.960950][  T228] RSP: 002b:00007ffdbc0e4398 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   13.961243][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[   13.961535][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[   13.961808][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   13.962084][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[   13.962374][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [   19.128541][  T228] ------------[ cut here ]------------
| [ 19.128906][ T228] WARNING: CPU: 3 PID: 228 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) 
| [   19.129344][  T228] Modules linked in: netdevsim [last unloaded: netdevsim]
| [   19.130007][  T228] Tainted: [W]=WARN
[   19.130176][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.130429][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.130693][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   19.131403][  T228] RSP: 0018:ffffc90000ab7520 EFLAGS: 00010246
[   19.131660][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   19.131960][  T228] RDX: 0000000000000000 RSI: ffff8880099f2c98 RDI: ffff8880050fd0f8
[   19.132268][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   19.132564][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   19.132946][  T228] R13: ffff8880099f2128 R14: ffff8880099f2008 R15: ffff8880099f2000
[   19.133252][  T228] FS:  00007fa583208740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   19.133601][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.133853][  T228] CR2: 00007fa5833bc733 CR3: 000000000b2e6006 CR4: 0000000000772ef0
[   19.134223][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   19.134521][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   19.134822][  T228] PKRU: 55555554
[   19.134990][  T228] Call Trace:
[   19.135157][  T228]  <TASK>
[ 19.135262][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.135464][ T228] ? __warn (kernel/panic.c:748) 
[ 19.135620][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.135824][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 19.136032][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 19.136199][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 19.136403][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 19.136618][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.136830][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 19.137085][ T228] ? _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) 
[ 19.137304][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 19.137509][ T228] register_netdevice (net/core/dev.c:11003) 
[ 19.137720][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 19.137935][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 19.138163][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 19.138426][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 19.138582][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 19.138847][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 19.139118][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 19.139379][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 19.139594][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 19.139849][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 19.140055][ T228] ? 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)) 
[ 19.140216][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 19.140425][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 19.140637][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 19.140841][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 19.141044][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 19.141258][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 19.141505][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 19.141709][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 19.141908][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 19.142121][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 19.142323][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 19.142533][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 19.142734][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 19.142934][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 19.143147][ T228] ? 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) 
[ 19.143361][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 19.143569][ T228] device_add (drivers/base/core.c:3672) 
[ 19.143774][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 19.143976][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 19.144198][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 19.144457][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 19.144721][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 19.144935][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 19.145156][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 19.145358][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 19.145567][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 19.145728][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 19.145935][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 19.146141][ T228] ? 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) 
[ 19.146354][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 19.146567][ T228] ksys_write (fs/read_write.c:731) 
[ 19.146723][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 19.146926][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 19.147152][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 19.147357][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.147608][  T228] RIP: 0033:0x7fa583349b77
[ 19.147815][ T228] 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
[   19.148523][  T228] RSP: 002b:00007ffdbc0e7c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   19.148823][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa583349b77
[   19.149130][  T228] RDX: 0000000000000004 RSI: 00005623ead93330 RDI: 0000000000000001
[   19.149431][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   19.149736][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000004
[   19.150034][  T228] R13: 00007fa583405760 R14: 0000000000000004 R15: 00007fa5834009c0
| [   19.187473][  T228] ------------[ cut here ]------------
| [ 19.187746][ T228] WARNING: CPU: 0 PID: 228 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) 
| [   19.188130][  T228] Modules linked in: netdevsim [last unloaded: netdevsim]
| [   19.188739][  T228] Tainted: [W]=WARN
[   19.188893][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.189241][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.189481][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   19.190201][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[   19.190439][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   19.190708][  T228] RDX: 0000000000000000 RSI: ffff8880051d2c98 RDI: ffff8880050fd0a8
[   19.190977][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   19.191257][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   19.191534][  T228] R13: ffff8880051d2128 R14: ffff8880051d2008 R15: ffff8880051d2000
[   19.191805][  T228] FS:  00007fa583208740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   19.192136][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.192385][  T228] CR2: 00007fabafbee000 CR3: 000000000b2e6002 CR4: 0000000000772ef0
[   19.192709][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   19.192983][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   19.193264][  T228] PKRU: 55555554
[   19.193405][  T228] Call Trace:
[   19.193544][  T228]  <TASK>
[ 19.193637][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.193853][ T228] ? __warn (kernel/panic.c:748) 
[ 19.194001][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.194308][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 19.194508][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 19.194647][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 19.194833][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 19.195042][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 19.195248][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 19.195483][ T228] ? _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) 
[ 19.195678][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 19.195867][ T228] register_netdevice (net/core/dev.c:11003) 
[ 19.196056][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 19.196262][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 19.196464][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 19.196702][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 19.196960][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 19.197211][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 19.197397][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 19.197589][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 19.197859][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 19.198043][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 19.198391][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 19.198581][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 19.198771][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 19.198927][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 19.199123][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 19.199317][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 19.199509][ T228] ksys_write (fs/read_write.c:731) 
[ 19.199649][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 19.199867][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 19.200205][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.200430][  T228] RIP: 0033:0x7fa583349b77
[ 19.200617][ T228] 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
[   19.201373][  T228] RSP: 002b:00007ffdbc0e7c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   19.201896][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[   19.202175][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[   19.202444][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   19.202831][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[   19.203163][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [   25.467184][  T228] ------------[ cut here ]------------
| [ 25.467527][ T228] WARNING: CPU: 0 PID: 228 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) 
| [   25.468010][  T228] Modules linked in: netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   25.468869][  T228] Tainted: [W]=WARN
[   25.469036][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.469718][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 25.470010][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   25.470795][  T228] RSP: 0018:ffffc90000ab7520 EFLAGS: 00010246
[   25.471072][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   25.471420][  T228] RDX: 0000000000000000 RSI: ffff8880051c2c98 RDI: ffff8880050fd0f8
[   25.471760][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   25.472086][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   25.472419][  T228] R13: ffff8880051c2128 R14: ffff8880051c2008 R15: ffff8880051c2000
[   25.472760][  T228] FS:  00007fa583208740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   25.473146][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.473419][  T228] CR2: 00007fa5833bc733 CR3: 000000000b2e6005 CR4: 0000000000772ef0
[   25.473760][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.474098][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.474425][  T228] PKRU: 55555554
[   25.474711][  T228] Call Trace:
[   25.474889][  T228]  <TASK>
[ 25.475002][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 25.475238][ T228] ? __warn (kernel/panic.c:748) 
[ 25.475410][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 25.475650][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 25.475886][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 25.476058][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 25.476286][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 25.476522][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 25.476770][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 25.477051][ T228] ? _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) 
[ 25.477284][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 25.477516][ T228] register_netdevice (net/core/dev.c:11003) 
[ 25.477760][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 25.477992][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 25.478238][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 25.478519][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 25.478705][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 25.478999][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 25.479289][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 25.479575][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 25.479826][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 25.480115][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 25.480345][ T228] ? 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)) 
[ 25.480511][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 25.480759][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 25.480986][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 25.481223][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 25.481443][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 25.481676][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 25.481950][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 25.482179][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 25.482405][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 25.482637][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 25.482860][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 25.483086][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 25.483315][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 25.483535][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 25.483772][ T228] ? 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) 
[ 25.484007][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 25.484246][ T228] device_add (drivers/base/core.c:3672) 
[ 25.484473][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 25.484718][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 25.484967][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 25.485262][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 25.485549][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 25.485774][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 25.486001][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 25.486227][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 25.486456][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 25.486630][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 25.486858][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 25.487075][ T228] ? 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) 
[ 25.487320][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 25.487553][ T228] ksys_write (fs/read_write.c:731) 
[ 25.487725][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 25.487943][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 25.488181][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 25.488403][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.488675][  T228] RIP: 0033:0x7fa583349b77
[ 25.488904][ T228] 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
[   25.489673][  T228] RSP: 002b:00007ffdbc0e7c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   25.490003][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa583349b77
[   25.490337][  T228] RDX: 0000000000000004 RSI: 00005623ead93330 RDI: 0000000000000001
[   25.490663][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   25.490991][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000004
[   25.491322][  T228] R13: 00007fa583405760 R14: 0000000000000004 R15: 00007fa5834009c0
| [   25.535131][  T228] ------------[ cut here ]------------
| [ 25.535446][ T228] WARNING: CPU: 1 PID: 228 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) 
| [   25.535851][  T228] Modules linked in: netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   25.536639][  T228] Tainted: [W]=WARN
[   25.536792][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.537042][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 25.537313][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   25.538026][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[   25.538290][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   25.538594][  T228] RDX: 0000000000000000 RSI: ffff888009cbac98 RDI: ffff8880050fd0a8
[   25.538890][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   25.539199][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   25.539496][  T228] R13: ffff888009cba128 R14: ffff888009cba008 R15: ffff888009cba000
[   25.539790][  T228] FS:  00007fa583208740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   25.540254][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.540513][  T228] CR2: 000055f47e0bb4c8 CR3: 000000000b2e6001 CR4: 0000000000772ef0
[   25.540812][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   25.541123][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   25.541425][  T228] PKRU: 55555554
[   25.541576][  T228] Call Trace:
[   25.541729][  T228]  <TASK>
[ 25.541836][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 25.542044][ T228] ? __warn (kernel/panic.c:748) 
[ 25.542354][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 25.542619][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 25.542830][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 25.542985][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 25.543197][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 25.543409][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 25.543619][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 25.543872][ T228] ? _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) 
[ 25.544081][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 25.544296][ T228] register_netdevice (net/core/dev.c:11003) 
[ 25.544503][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 25.544716][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 25.544948][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 25.545223][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 25.545522][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 25.545780][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 25.545982][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 25.546203][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 25.546458][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 25.546659][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 25.546865][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 25.547067][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 25.547279][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 25.547441][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 25.547647][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 25.547855][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 25.548064][ T228] ksys_write (fs/read_write.c:731) 
[ 25.548236][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 25.548453][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 25.548657][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.548903][  T228] RIP: 0033:0x7fa583349b77
[ 25.549124][ T228] 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
[   25.549817][  T228] RSP: 002b:00007ffdbc0e5668 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   25.550261][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[   25.550568][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[   25.550987][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   25.551297][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[   25.551593][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [   38.051523][  T228] ------------[ cut here ]------------
| [ 38.051887][ T228] WARNING: CPU: 2 PID: 228 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) 
| [   38.052310][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   38.053144][  T228] Tainted: [W]=WARN
[   38.053328][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 38.053586][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 38.053845][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   38.054537][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[   38.054804][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   38.055118][  T228] RDX: 0000000000000000 RSI: ffff88800a30ac98 RDI: ffff8880050fd0a8
[   38.055420][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   38.055729][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   38.056029][  T228] R13: ffff88800a30a128 R14: ffff88800a30a008 R15: ffff88800a30a000
[   38.056341][  T228] FS:  00007fa583208740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   38.056681][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   38.056929][  T228] CR2: 00007ffdbc0e4e50 CR3: 000000000b2e6005 CR4: 0000000000772ef0
[   38.057239][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   38.057535][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   38.057830][  T228] PKRU: 55555554
[   38.057988][  T228] Call Trace:
[   38.058153][  T228]  <TASK>
[ 38.058264][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 38.058470][ T228] ? __warn (kernel/panic.c:748) 
[ 38.058630][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 38.058835][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 38.059044][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 38.059216][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 38.059419][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 38.059636][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 38.059851][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 38.060114][ T228] ? _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) 
[ 38.060324][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 38.060533][ T228] register_netdevice (net/core/dev.c:11003) 
[ 38.060745][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 38.060967][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 38.061202][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 38.061458][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 38.061730][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 38.061986][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 38.062210][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 38.062421][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 38.062680][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 38.062877][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 38.063082][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 38.063297][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 38.063508][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 38.063679][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 38.063884][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 38.064110][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 38.064330][ T228] ksys_write (fs/read_write.c:731) 
[ 38.064490][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 38.064705][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 38.064923][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   38.065188][  T228] RIP: 0033:0x7fa583349b77
[ 38.065405][ T228] 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
[   38.066100][  T228] RSP: 002b:00007ffdbc0e5668 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   38.066399][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[   38.066694][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[   38.066999][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   38.067297][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[   38.067599][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [   50.489875][  T228] ------------[ cut here ]------------
| [ 50.490374][ T228] WARNING: CPU: 1 PID: 228 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) 
| [   50.490824][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   50.491731][  T228] Tainted: [W]=WARN
[   50.491899][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 50.492179][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 50.492458][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   50.493230][  T228] RSP: 0018:ffffc90000ab7520 EFLAGS: 00010246
[   50.493514][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   50.493845][  T228] RDX: 0000000000000000 RSI: ffff8880051d2c98 RDI: ffff8880050fd0f8
[   50.494182][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   50.494501][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   50.494844][  T228] R13: ffff8880051d2128 R14: ffff8880051d2008 R15: ffff8880051d2000
[   50.495187][  T228] FS:  00007fa583208740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   50.495567][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   50.495838][  T228] CR2: 00005623d1caf990 CR3: 000000000b2e6004 CR4: 0000000000772ef0
[   50.496347][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   50.496676][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   50.497006][  T228] PKRU: 55555554
[   50.497185][  T228] Call Trace:
[   50.497358][  T228]  <TASK>
[ 50.497473][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 50.497695][ T228] ? __warn (kernel/panic.c:748) 
[ 50.497870][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 50.498114][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 50.498373][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 50.498545][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 50.498766][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 50.499001][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 50.499239][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 50.499518][ T228] ? _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) 
[ 50.499746][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 50.499975][ T228] register_netdevice (net/core/dev.c:11003) 
[ 50.500211][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 50.500447][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 50.500687][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 50.500967][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 50.501150][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 50.501436][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 50.501722][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 50.502006][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 50.502250][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 50.502525][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 50.502749][ T228] ? 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)) 
[ 50.502915][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 50.503159][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 50.503388][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 50.503611][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 50.503831][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 50.504053][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 50.504329][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 50.504554][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 50.504792][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 50.505014][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 50.505243][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 50.505468][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 50.505689][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 50.505904][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 50.506135][ T228] ? 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) 
[ 50.506372][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 50.506597][ T228] device_add (drivers/base/core.c:3672) 
[ 50.506820][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 50.507039][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 50.507285][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 50.507571][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 50.507856][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 50.508077][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 50.508314][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 50.508531][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 50.508760][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 50.508935][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 50.509179][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 50.509406][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 50.509647][ T228] ksys_write (fs/read_write.c:731) 
[ 50.509818][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 50.510049][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 50.510280][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   50.510552][  T228] RIP: 0033:0x7fa583349b77
[ 50.510777][ T228] 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
[   50.511550][  T228] RSP: 002b:00007ffdbc0e7c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   50.511881][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa583349b77
[   50.512217][  T228] RDX: 0000000000000004 RSI: 00005623ead93330 RDI: 0000000000000001
[   50.512540][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   50.512872][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000004
[   50.513207][  T228] R13: 00007fa583405760 R14: 0000000000000004 R15: 00007fa5834009c0
| [   50.553080][  T228] ------------[ cut here ]------------
| [ 50.553414][ T228] WARNING: CPU: 1 PID: 228 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) 
| [   50.553822][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   50.554658][  T228] Tainted: [W]=WARN
[   50.554834][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 50.555118][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 50.555374][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   50.556066][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[   50.556334][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   50.556637][  T228] RDX: 0000000000000000 RSI: ffff8880051cac98 RDI: ffff8880050fd0a8
[   50.556940][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   50.557254][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   50.557717][  T228] R13: ffff8880051ca128 R14: ffff8880051ca008 R15: ffff8880051ca000
[   50.558018][  T228] FS:  00007fa583208740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   50.558371][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   50.558617][  T228] CR2: 00007ffdbc0e5ff8 CR3: 000000000b2e6004 CR4: 0000000000772ef0
[   50.559025][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   50.559333][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   50.559628][  T228] PKRU: 55555554
[   50.559780][  T228] Call Trace:
[   50.559928][  T228]  <TASK>
[ 50.560032][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 50.560244][ T228] ? __warn (kernel/panic.c:748) 
[ 50.560403][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 50.560603][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 50.560817][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 50.560968][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 50.561177][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 50.561394][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 50.561603][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 50.561857][ T228] ? _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) 
[ 50.562062][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 50.562417][ T228] register_netdevice (net/core/dev.c:11003) 
[ 50.562622][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 50.562831][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 50.563045][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 50.563313][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 50.563587][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 50.563848][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 50.564177][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 50.564391][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 50.564644][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 50.564850][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 50.565167][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 50.565366][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 50.565577][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 50.565735][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 50.566048][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 50.566266][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 50.566475][ T228] ksys_write (fs/read_write.c:731) 
[ 50.566632][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 50.566947][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 50.567161][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   50.567410][  T228] RIP: 0033:0x7fa583349b77
[ 50.567610][ T228] 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
[   50.568441][  T228] RSP: 002b:00007ffdbc0e5668 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   50.568857][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[   50.569158][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[   50.569450][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   50.569850][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[   50.570166][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [   62.905560][  T228] ------------[ cut here ]------------
| [ 62.905848][ T228] WARNING: CPU: 2 PID: 228 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) 
| [   62.906294][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   62.907126][  T228] Tainted: [W]=WARN
[   62.907309][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 62.907561][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 62.907819][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   62.908602][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[   62.908853][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   62.909149][  T228] RDX: 0000000000000000 RSI: ffff8880099f2c98 RDI: ffff8880050fd0a8
[   62.909442][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   62.909734][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   62.910025][  T228] R13: ffff8880099f2128 R14: ffff8880099f2008 R15: ffff8880099f2000
[   62.910324][  T228] FS:  00007fa583208740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   62.910655][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   62.910905][  T228] CR2: 00007fc243b34a00 CR3: 000000000b2e6002 CR4: 0000000000772ef0
[   62.911204][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   62.911493][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   62.911778][  T228] PKRU: 55555554
[   62.911932][  T228] Call Trace:
[   62.912084][  T228]  <TASK>
[ 62.912206][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 62.912410][ T228] ? __warn (kernel/panic.c:748) 
[ 62.912575][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 62.912790][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 62.913008][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 62.913177][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 62.913387][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 62.913610][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 62.913825][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 62.914085][ T228] ? _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) 
[ 62.914306][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 62.914523][ T228] register_netdevice (net/core/dev.c:11003) 
[ 62.914744][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 62.914961][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 62.915193][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 62.915460][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 62.915735][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 62.916011][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 62.916227][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 62.916441][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 62.916708][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 62.916912][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 62.917126][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 62.917334][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 62.917539][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 62.917707][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 62.917911][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 62.918133][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 62.918350][ T228] ksys_write (fs/read_write.c:731) 
[ 62.918506][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 62.918719][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 62.918922][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   62.919177][  T228] RIP: 0033:0x7fa583349b77
[ 62.919383][ T228] 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
[   62.920042][  T228] RSP: 002b:00007ffdbc0e5668 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   62.920348][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[   62.920638][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[   62.920928][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   62.921229][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[   62.921517][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [   74.994847][  T228] ------------[ cut here ]------------
| [ 74.996369][ T228] WARNING: CPU: 0 PID: 228 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) 
| [   74.996865][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   74.997908][  T228] Tainted: [W]=WARN
[   74.998067][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 74.998463][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 74.998731][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   74.999577][  T228] RSP: 0018:ffffc90000ab7520 EFLAGS: 00010246
[   74.999842][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   75.000267][  T228] RDX: 0000000000000000 RSI: ffff88800b3cac98 RDI: ffff8880050fd0f8
[   75.000579][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   75.000889][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   75.001247][  T228] R13: ffff88800b3ca128 R14: ffff88800b3ca008 R15: ffff88800b3ca000
[   75.001558][  T228] FS:  00007fa583208740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[   75.001935][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   75.002216][  T228] CR2: 00007fa58328d440 CR3: 000000000b2e6001 CR4: 0000000000772ef0
[   75.002625][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   75.002933][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   75.003253][  T228] PKRU: 55555554
[   75.003410][  T228] Call Trace:
[   75.003569][  T228]  <TASK>
[ 75.003679][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 75.003889][ T228] ? __warn (kernel/panic.c:748) 
[ 75.004051][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 75.004276][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 75.004501][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 75.004673][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 75.004881][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 75.005142][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 75.005366][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 75.005630][ T228] ? _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) 
[ 75.005846][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 75.006062][ T228] register_netdevice (net/core/dev.c:11003) 
[ 75.006294][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 75.006520][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 75.006750][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 75.007022][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 75.007203][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 75.007502][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 75.007771][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 75.008039][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 75.008274][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 75.008539][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 75.008753][ T228] ? 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)) 
[ 75.008911][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 75.009148][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 75.009364][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 75.009576][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 75.009786][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 75.009998][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 75.010266][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 75.010477][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 75.010694][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 75.010903][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 75.011122][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 75.011337][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 75.011543][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 75.011748][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 75.011956][ T228] ? 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) 
[ 75.012195][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 75.012408][ T228] device_add (drivers/base/core.c:3672) 
[ 75.012619][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 75.012827][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 75.013047][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 75.013327][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 75.013597][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 75.013806][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 75.014018][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 75.014236][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 75.014450][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 75.014624][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 75.014835][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 75.015049][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 75.015284][ T228] ksys_write (fs/read_write.c:731) 
[ 75.015447][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 75.015666][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 75.015877][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   75.016149][  T228] RIP: 0033:0x7fa583349b77
[ 75.016365][ T228] 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
[   75.017081][  T228] RSP: 002b:00007ffdbc0e7c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   75.017412][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa583349b77
[   75.017717][  T228] RDX: 0000000000000004 RSI: 00005623ead93330 RDI: 0000000000000001
[   75.018028][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   75.018352][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000004
[   75.018659][  T228] R13: 00007fa583405760 R14: 0000000000000004 R15: 00007fa5834009c0
| [   75.066424][  T228] ------------[ cut here ]------------
| [ 75.066836][ T228] WARNING: CPU: 3 PID: 228 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) 
| [   75.067306][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   75.068175][  T228] Tainted: [W]=WARN
[   75.068343][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 75.068617][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 75.068894][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   75.069643][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[   75.069908][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   75.070239][  T228] RDX: 0000000000000000 RSI: ffff88800d422c98 RDI: ffff8880050fd0a8
[   75.070573][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   75.070910][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   75.071233][  T228] R13: ffff88800d422128 R14: ffff88800d422008 R15: ffff88800d422000
[   75.071539][  T228] FS:  00007fa583208740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   75.071909][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   75.072177][  T228] CR2: 00007f392ba5f000 CR3: 000000000b2e6003 CR4: 0000000000772ef0
[   75.072495][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   75.072806][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   75.073125][  T228] PKRU: 55555554
[   75.073394][  T228] Call Trace:
[   75.073549][  T228]  <TASK>
[ 75.073655][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 75.073861][ T228] ? __warn (kernel/panic.c:748) 
[ 75.074018][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 75.074236][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 75.074450][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 75.074701][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 75.074910][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 75.075137][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 75.075351][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 75.075607][ T228] ? _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) 
[ 75.075816][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 75.076023][ T228] register_netdevice (net/core/dev.c:11003) 
[ 75.076247][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 75.076463][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 75.076687][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 75.076954][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 75.077244][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 75.077509][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 75.077719][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 75.077937][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 75.078212][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 75.078417][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 75.078624][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 75.079014][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 75.079233][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 75.079402][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 75.079611][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 75.079827][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 75.080046][ T228] ksys_write (fs/read_write.c:731) 
[ 75.080215][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 75.080432][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 75.080641][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   75.080892][  T228] RIP: 0033:0x7fa583349b77
[ 75.081119][ T228] 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
[   75.081827][  T228] RSP: 002b:00007ffdbc0e6f58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   75.082161][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[   75.082469][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[   75.082768][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   75.083068][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[   75.083380][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [   82.189626][  T228] ------------[ cut here ]------------
| [ 82.189974][ T228] WARNING: CPU: 2 PID: 228 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) 
| [   82.190488][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   82.191303][  T228] Tainted: [W]=WARN
[   82.191461][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 82.191717][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 82.191985][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   82.192666][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[   82.192921][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   82.193222][  T228] RDX: 0000000000000000 RSI: ffff8880051c2c98 RDI: ffff8880050fd0a8
[   82.193522][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   82.193820][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   82.194122][  T228] R13: ffff8880051c2128 R14: ffff8880051c2008 R15: ffff8880051c2000
[   82.194424][  T228] FS:  00007fa583208740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   82.194788][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   82.195034][  T228] CR2: 00007fa58328d440 CR3: 000000000b2e6006 CR4: 0000000000772ef0
[   82.195343][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   82.195634][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   82.195930][  T228] PKRU: 55555554
[   82.196087][  T228] Call Trace:
[   82.196254][  T228]  <TASK>
[ 82.196364][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 82.196570][ T228] ? __warn (kernel/panic.c:748) 
[ 82.196738][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 82.196944][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 82.197178][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 82.197339][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 82.197547][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 82.197764][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 82.197978][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 82.198243][ T228] ? _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) 
[ 82.198456][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 82.198675][ T228] register_netdevice (net/core/dev.c:11003) 
[ 82.198903][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 82.199123][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 82.199349][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 82.199607][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 82.199880][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 82.200149][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 82.200357][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 82.200568][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 82.200825][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 82.201025][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 82.201240][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 82.201448][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 82.201663][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 82.201829][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 82.202034][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 82.202258][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 82.202470][ T228] ksys_write (fs/read_write.c:731) 
[ 82.202637][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 82.202853][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 82.203060][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   82.203317][  T228] RIP: 0033:0x7fa583349b77
[ 82.203535][ T228] 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
[   82.204222][  T228] RSP: 002b:00007ffdbc0e6f58 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   82.204537][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[   82.204838][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[   82.205146][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   82.205445][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[   82.205748][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [   89.057666][  T228] ------------[ cut here ]------------
| [ 89.058059][ T228] WARNING: CPU: 3 PID: 228 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) 
| [   89.058850][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   89.059748][  T228] Tainted: [W]=WARN
[   89.059918][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 89.060206][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 89.060484][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   89.061273][  T228] RSP: 0018:ffffc90000ab7520 EFLAGS: 00010246
[   89.061555][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   89.061880][  T228] RDX: 0000000000000000 RSI: ffff888009cbac98 RDI: ffff8880050fd0f8
[   89.062223][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   89.062549][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   89.062870][  T228] R13: ffff888009cba128 R14: ffff888009cba008 R15: ffff888009cba000
[   89.063209][  T228] FS:  00007fa583208740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   89.063582][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.063860][  T228] CR2: 00007fa58328d440 CR3: 000000000b2e6001 CR4: 0000000000772ef0
[   89.064195][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   89.064528][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   89.064960][  T228] PKRU: 55555554
[   89.065153][  T228] Call Trace:
[   89.065323][  T228]  <TASK>
[ 89.065436][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 89.065661][ T228] ? __warn (kernel/panic.c:748) 
[ 89.065831][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 89.066052][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 89.066294][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 89.066465][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 89.066683][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 89.066922][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 89.067169][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 89.067456][ T228] ? _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) 
[ 89.067702][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 89.067928][ T228] register_netdevice (net/core/dev.c:11003) 
[ 89.068166][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 89.068395][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 89.068634][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 89.068914][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 89.069082][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 89.069399][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 89.069679][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 89.069959][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 89.070202][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 89.070479][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 89.070701][ T228] ? 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)) 
[ 89.070870][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 89.071111][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 89.071339][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 89.071558][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 89.071785][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 89.072008][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 89.072288][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 89.072510][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 89.072725][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 89.072944][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 89.073185][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 89.073412][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 89.073629][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 89.073846][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 89.074068][ T228] ? 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) 
[ 89.074311][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 89.074540][ T228] device_add (drivers/base/core.c:3672) 
[ 89.074764][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 89.074981][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 89.075223][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 89.075505][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 89.075792][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 89.076011][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 89.076247][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 89.076464][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 89.076689][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 89.076864][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 89.077088][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 89.077345][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 89.077573][ T228] ksys_write (fs/read_write.c:731) 
[ 89.077743][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 89.077974][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 89.078209][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   89.078479][  T228] RIP: 0033:0x7fa583349b77
[ 89.078702][ T228] 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
[   89.079462][  T228] RSP: 002b:00007ffdbc0e7c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   89.079788][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa583349b77
[   89.080120][  T228] RDX: 0000000000000004 RSI: 00005623ead93330 RDI: 0000000000000001
[   89.080445][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   89.080769][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000004
[   89.081114][  T228] R13: 00007fa583405760 R14: 0000000000000004 R15: 00007fa5834009c0
| [   89.121378][  T228] ------------[ cut here ]------------
| [ 89.121690][ T228] WARNING: CPU: 3 PID: 228 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) 
| [   89.122085][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   89.122944][  T228] Tainted: [W]=WARN
[   89.123111][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 89.123360][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 89.123617][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   89.124322][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[   89.124584][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   89.124882][  T228] RDX: 0000000000000000 RSI: ffff88800a30ac98 RDI: ffff8880050fd0a8
[   89.125197][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   89.125499][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   89.125801][  T228] R13: ffff88800a30a128 R14: ffff88800a30a008 R15: ffff88800a30a000
[   89.126110][  T228] FS:  00007fa583208740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   89.126457][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   89.126713][  T228] CR2: 00007ffdbc0e4ff0 CR3: 000000000b2e6001 CR4: 0000000000772ef0
[   89.127134][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   89.127438][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   89.127738][  T228] PKRU: 55555554
[   89.127893][  T228] Call Trace:
[   89.128044][  T228]  <TASK>
[ 89.128166][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 89.128374][ T228] ? __warn (kernel/panic.c:748) 
[ 89.128533][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 89.128735][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 89.128941][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 89.129108][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 89.129308][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 89.129525][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 89.129742][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 89.129997][ T228] ? _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) 
[ 89.130214][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 89.130421][ T228] register_netdevice (net/core/dev.c:11003) 
[ 89.130625][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 89.130834][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 89.131048][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 89.131322][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 89.131598][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 89.131856][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 89.132059][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 89.132282][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 89.132545][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 89.132743][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 89.132947][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 89.133165][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 89.133374][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 89.133538][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 89.133886][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 89.134221][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 89.134435][ T228] ksys_write (fs/read_write.c:731) 
[ 89.134601][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 89.134819][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 89.135143][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   89.135397][  T228] RIP: 0033:0x7fa583349b77
[ 89.135603][ T228] 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
[   89.136327][  T228] RSP: 002b:00007ffdbc0e52d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   89.136632][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[   89.137111][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[   89.137530][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   89.137835][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[   89.138145][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [   91.719061][  T228] ------------[ cut here ]------------
| [ 91.719405][ T228] WARNING: CPU: 2 PID: 228 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) 
| [   91.719798][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   91.720608][  T228] Tainted: [W]=WARN
[   91.720762][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 91.721008][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.721288][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   91.721948][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[   91.722209][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   91.722500][  T228] RDX: 0000000000000000 RSI: ffff8880051d2c98 RDI: ffff8880050fd0a8
[   91.722795][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   91.723087][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   91.723392][  T228] R13: ffff8880051d2128 R14: ffff8880051d2008 R15: ffff8880051d2000
[   91.723687][  T228] FS:  00007fa583208740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   91.724025][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   91.724287][  T228] CR2: 000055f4562aa148 CR3: 000000000b2e6002 CR4: 0000000000772ef0
[   91.724620][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   91.724940][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   91.725262][  T228] PKRU: 55555554
[   91.725427][  T228] Call Trace:
[   91.725584][  T228]  <TASK>
[ 91.725695][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.725919][ T228] ? __warn (kernel/panic.c:748) 
[ 91.726082][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.726300][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 91.726512][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 91.726671][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 91.726873][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 91.727101][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 91.727321][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 91.727575][ T228] ? _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) 
[ 91.727782][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 91.727986][ T228] register_netdevice (net/core/dev.c:11003) 
[ 91.728211][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 91.728423][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 91.728650][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 91.728905][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 91.729210][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 91.729473][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 91.729678][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 91.729889][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 91.730157][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 91.730355][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 91.730562][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 91.730765][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 91.730970][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 91.731150][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 91.731352][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 91.731563][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 91.731772][ T228] ksys_write (fs/read_write.c:731) 
[ 91.731928][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 91.732151][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 91.732353][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   91.732590][  T228] RIP: 0033:0x7fa583349b77
[ 91.732794][ T228] 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
[   91.733466][  T228] RSP: 002b:00007ffdbc0e52d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   91.733758][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[   91.734045][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[   91.734343][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   91.734674][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[   91.734959][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [   94.089585][  T228] ------------[ cut here ]------------
| [ 94.090162][ T228] WARNING: CPU: 3 PID: 228 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) 
| [   94.090614][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   94.091522][  T228] Tainted: [W]=WARN
[   94.091691][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 94.091970][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 94.092260][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   94.093024][  T228] RSP: 0018:ffffc90000ab7520 EFLAGS: 00010246
[   94.093310][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   94.093639][  T228] RDX: 0000000000000000 RSI: ffff8880051cac98 RDI: ffff8880050fd0f8
[   94.093965][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   94.094298][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   94.094629][  T228] R13: ffff8880051ca128 R14: ffff8880051ca008 R15: ffff8880051ca000
[   94.094952][  T228] FS:  00007fa583208740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   94.095338][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   94.095609][  T228] CR2: 00007fc243b34a00 CR3: 000000000b2e6002 CR4: 0000000000772ef0
[   94.095929][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   94.096261][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   94.096584][  T228] PKRU: 55555554
[   94.096750][  T228] Call Trace:
[   94.096917][  T228]  <TASK>
[ 94.097031][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 94.097259][ T228] ? __warn (kernel/panic.c:748) 
[ 94.097430][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 94.097655][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 94.097885][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 94.098053][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 94.098282][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 94.098523][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 94.098754][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 94.099034][ T228] ? _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) 
[ 94.099266][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 94.099488][ T228] register_netdevice (net/core/dev.c:11003) 
[ 94.099712][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 94.099949][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 94.100194][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 94.100476][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 94.100645][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 94.100932][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 94.101254][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 94.101537][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 94.101769][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 94.102045][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 94.102278][ T228] ? 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)) 
[ 94.102444][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 94.102674][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 94.102907][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 94.103136][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 94.103360][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 94.103582][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 94.103850][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 94.104070][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 94.104297][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 94.104531][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 94.104749][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 94.104973][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 94.105201][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 94.105414][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 94.105633][ T228] ? 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) 
[ 94.105862][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 94.106101][ T228] device_add (drivers/base/core.c:3672) 
[ 94.106323][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 94.106540][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 94.106769][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 94.107049][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 94.107341][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 94.107579][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 94.107808][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 94.108025][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 94.108261][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 94.108438][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 94.108661][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 94.108889][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 94.109126][ T228] ksys_write (fs/read_write.c:731) 
[ 94.109299][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 94.109527][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 94.109749][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   94.110017][  T228] RIP: 0033:0x7fa583349b77
[ 94.110252][ T228] 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
[   94.111003][  T228] RSP: 002b:00007ffdbc0e7c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   94.111339][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa583349b77
[   94.111661][  T228] RDX: 0000000000000004 RSI: 00005623ead93330 RDI: 0000000000000001
[   94.111983][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   94.112325][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000004
[   94.112646][  T228] R13: 00007fa583405760 R14: 0000000000000004 R15: 00007fa5834009c0
| [   94.171910][  T228] ------------[ cut here ]------------
| [ 94.172251][ T228] WARNING: CPU: 3 PID: 228 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) 
| [   94.172656][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   94.173507][  T228] Tainted: [W]=WARN
[   94.173685][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 94.173940][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 94.174213][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   94.174929][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[   94.175194][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   94.175498][  T228] RDX: 0000000000000000 RSI: ffff8880099f2c98 RDI: ffff8880050fd0a8
[   94.175797][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   94.176108][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   94.176414][  T228] R13: ffff8880099f2128 R14: ffff8880099f2008 R15: ffff8880099f2000
[   94.176715][  T228] FS:  00007fa583208740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   94.177071][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   94.177338][  T228] CR2: 00007fc243b34a00 CR3: 000000000b2e6002 CR4: 0000000000772ef0
[   94.177657][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   94.177961][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   94.178443][  T228] PKRU: 55555554
[   94.178599][  T228] Call Trace:
[   94.178750][  T228]  <TASK>
[ 94.178855][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 94.179056][ T228] ? __warn (kernel/panic.c:748) 
[ 94.179228][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 94.179429][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 94.179637][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 94.179791][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 94.179992][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 94.180211][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 94.180422][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 94.180684][ T228] ? _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) 
[ 94.180888][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 94.181103][ T228] register_netdevice (net/core/dev.c:11003) 
[ 94.181308][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 94.181524][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 94.181741][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 94.182001][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 94.182289][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 94.182551][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 94.182756][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 94.182965][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 94.183228][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 94.183426][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 94.183630][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 94.183834][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 94.184045][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 94.184216][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 94.184420][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 94.184635][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 94.184841][ T228] ksys_write (fs/read_write.c:731) 
[ 94.184993][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 94.185216][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 94.185418][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   94.185667][  T228] RIP: 0033:0x7fa583349b77
[ 94.185879][ T228] Code: Unable to access opcode bytes at 0x7fa583349b4d.

Code starting with the faulting instruction
===========================================
[   94.186166][  T228] RSP: 002b:00007ffdbc0e5798 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   94.186465][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[   94.186764][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[   94.187067][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   94.187372][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[   94.187672][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [   96.520451][  T228] ------------[ cut here ]------------
| [ 96.520805][ T228] WARNING: CPU: 2 PID: 228 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) 
| [   96.521223][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   96.522050][  T228] Tainted: [W]=WARN
[   96.522251][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 96.522506][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 96.522768][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   96.523466][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[   96.523734][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   96.524043][  T228] RDX: 0000000000000000 RSI: ffff88800b3cac98 RDI: ffff8880050fd0a8
[   96.524354][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   96.524669][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   96.524980][  T228] R13: ffff88800b3ca128 R14: ffff88800b3ca008 R15: ffff88800b3ca000
[   96.525293][  T228] FS:  00007fa583208740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[   96.525651][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   96.525911][  T228] CR2: 00007ffdbc0e4f80 CR3: 000000000b2e6004 CR4: 0000000000772ef0
[   96.526229][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   96.526538][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   96.526840][  T228] PKRU: 55555554
[   96.527004][  T228] Call Trace:
[   96.527175][  T228]  <TASK>
[ 96.527295][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 96.527513][ T228] ? __warn (kernel/panic.c:748) 
[ 96.527678][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 96.527894][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 96.528121][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 96.528289][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 96.528497][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 96.528730][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 96.528946][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 96.529218][ T228] ? _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) 
[ 96.529434][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 96.529650][ T228] register_netdevice (net/core/dev.c:11003) 
[ 96.529867][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 96.530098][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 96.530440][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 96.530710][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 96.530991][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 96.531271][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 96.531485][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 96.531704][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 96.531970][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 96.532187][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 96.532400][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 96.532615][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 96.532824][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 96.532988][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 96.533211][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 96.533436][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 96.533652][ T228] ksys_write (fs/read_write.c:731) 
[ 96.533807][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 96.534021][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 96.534234][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   96.534482][  T228] RIP: 0033:0x7fa583349b77
[ 96.534698][ T228] 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
[   96.535370][  T228] RSP: 002b:00007ffdbc0e5798 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   96.535666][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[   96.535951][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[   96.536256][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   96.536548][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[   96.536830][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [   98.707678][  T228] ------------[ cut here ]------------
| [ 98.708080][ T228] WARNING: CPU: 3 PID: 228 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) 
| [   98.708536][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   98.709434][  T228] Tainted: [W]=WARN
[   98.709603][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 98.709875][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.710169][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   98.710924][  T228] RSP: 0018:ffffc90000ab7520 EFLAGS: 00010246
[   98.711214][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   98.711538][  T228] RDX: 0000000000000000 RSI: ffff88800d422c98 RDI: ffff8880050fd0f8
[   98.711867][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   98.712198][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   98.712526][  T228] R13: ffff88800d422128 R14: ffff88800d422008 R15: ffff88800d422000
[   98.712854][  T228] FS:  00007fa583208740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[   98.713241][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   98.713525][  T228] CR2: 00007fc243b34a00 CR3: 000000000b2e6003 CR4: 0000000000772ef0
[   98.713857][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   98.714299][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   98.714646][  T228] PKRU: 55555554
[   98.714816][  T228] Call Trace:
[   98.714979][  T228]  <TASK>
[ 98.715108][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.715329][ T228] ? __warn (kernel/panic.c:748) 
[ 98.715503][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.715727][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 98.715955][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 98.716134][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 98.716359][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 98.716598][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.716829][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 98.717121][ T228] ? _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) 
[ 98.717348][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 98.717572][ T228] register_netdevice (net/core/dev.c:11003) 
[ 98.717804][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 98.718038][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 98.718288][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 98.718567][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 98.718737][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 98.719046][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 98.719336][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 98.719615][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 98.719846][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 98.720129][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 98.720352][ T228] ? 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)) 
[ 98.720518][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 98.720753][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 98.720981][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 98.721216][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 98.721455][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 98.721679][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 98.721950][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 98.722182][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 98.722405][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 98.722626][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 98.722842][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 98.723068][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 98.723303][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 98.723519][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 98.723740][ T228] ? 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) 
[ 98.723978][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 98.724210][ T228] device_add (drivers/base/core.c:3672) 
[ 98.724431][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 98.724655][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 98.724883][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 98.725175][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 98.725461][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 98.725684][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 98.725910][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 98.726139][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 98.726366][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 98.726541][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 98.726761][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 98.726990][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 98.727233][ T228] ksys_write (fs/read_write.c:731) 
[ 98.727401][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 98.727632][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 98.727854][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   98.728129][  T228] RIP: 0033:0x7fa583349b77
[ 98.728355][ T228] 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
[   98.729124][  T228] RSP: 002b:00007ffdbc0e7c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   98.729454][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa583349b77
[   98.729777][  T228] RDX: 0000000000000004 RSI: 00005623ead93330 RDI: 0000000000000001
[   98.730133][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   98.730462][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000004
[   98.730782][  T228] R13: 00007fa583405760 R14: 0000000000000004 R15: 00007fa5834009c0
| [   98.769977][  T228] ------------[ cut here ]------------
| [ 98.770324][ T228] WARNING: CPU: 1 PID: 228 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) 
| [   98.770786][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [   98.771569][  T228] Tainted: [W]=WARN
[   98.771712][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 98.771940][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.772286][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[   98.772919][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[   98.773211][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[   98.773488][  T228] RDX: 0000000000000000 RSI: ffff8880051c2c98 RDI: ffff8880050fd0a8
[   98.773762][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[   98.774031][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[   98.774315][  T228] R13: ffff8880051c2128 R14: ffff8880051c2008 R15: ffff8880051c2000
[   98.774599][  T228] FS:  00007fa583208740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[   98.774917][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   98.775156][  T228] CR2: 00007ffdbc0e4ff0 CR3: 000000000b2e6001 CR4: 0000000000772ef0
[   98.775427][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[   98.775700][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[   98.775973][  T228] PKRU: 55555554
[   98.776122][  T228] Call Trace:
[   98.776264][  T228]  <TASK>
[ 98.776360][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.776543][ T228] ? __warn (kernel/panic.c:748) 
[ 98.776688][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.776874][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 98.777068][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 98.777229][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 98.777414][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 98.777612][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 98.777804][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 98.778054][ T228] ? _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) 
[ 98.778260][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 98.778449][ T228] register_netdevice (net/core/dev.c:11003) 
[ 98.778641][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 98.778836][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 98.779039][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 98.779287][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 98.779541][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 98.779782][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 98.779972][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 98.780174][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 98.780412][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 98.780595][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 98.780778][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 98.780965][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 98.781172][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 98.781323][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 98.781510][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 98.781704][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 98.781897][ T228] ksys_write (fs/read_write.c:731) 
[ 98.782038][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 98.782246][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 98.782434][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   98.782662][  T228] RIP: 0033:0x7fa583349b77
[ 98.782851][ T228] 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
[   98.783488][  T228] RSP: 002b:00007ffdbc0e52d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   98.783768][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[   98.784043][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[   98.784324][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[   98.784601][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[   98.784871][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [  100.943598][  T228] ------------[ cut here ]------------
| [ 100.943838][ T228] WARNING: CPU: 0 PID: 228 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) 
| [  100.944523][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  100.945323][  T228] Tainted: [W]=WARN
[  100.945470][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 100.945705][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.945941][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[  100.946615][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[  100.946863][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  100.947157][  T228] RDX: 0000000000000000 RSI: ffff888009cbac98 RDI: ffff8880050fd0a8
[  100.947449][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[  100.947738][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[  100.948028][  T228] R13: ffff888009cba128 R14: ffff888009cba008 R15: ffff888009cba000
[  100.948366][  T228] FS:  00007fa583208740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  100.948713][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  100.948962][  T228] CR2: 00005623ead721e8 CR3: 000000000b2e6002 CR4: 0000000000772ef0
[  100.949260][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  100.949550][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  100.949843][  T228] PKRU: 55555554
[  100.949993][  T228] Call Trace:
[  100.950169][  T228]  <TASK>
[ 100.950274][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.950474][ T228] ? __warn (kernel/panic.c:748) 
[ 100.950630][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.950837][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 100.951040][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 100.951208][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 100.951405][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 100.951623][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 100.951831][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 100.952080][ T228] ? _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) 
[ 100.952295][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 100.952500][ T228] register_netdevice (net/core/dev.c:11003) 
[ 100.952704][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 100.952922][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 100.953143][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 100.953398][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 100.953665][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 100.953918][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 100.954124][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 100.954334][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 100.954591][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 100.954790][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 100.954986][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 100.955216][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 100.955420][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 100.955578][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 100.955785][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 100.955990][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 100.956215][ T228] ksys_write (fs/read_write.c:731) 
[ 100.956368][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 100.956575][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 100.956772][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  100.957016][  T228] RIP: 0033:0x7fa583349b77
[ 100.957227][ T228] 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
[  100.957872][  T228] RSP: 002b:00007ffdbc0e52d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  100.958167][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[  100.958451][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[  100.958733][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[  100.959008][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[  100.959289][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [  102.957630][  T228] ------------[ cut here ]------------
| [ 102.958012][ T228] WARNING: CPU: 1 PID: 228 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) 
| [  102.958431][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  102.959272][  T228] Tainted: [W]=WARN
[  102.959433][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 102.959689][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 102.959964][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[  102.960694][  T228] RSP: 0018:ffffc90000ab7520 EFLAGS: 00010246
[  102.960954][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  102.961263][  T228] RDX: 0000000000000000 RSI: ffff88800a30ac98 RDI: ffff8880050fd0f8
[  102.961568][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[  102.961870][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[  102.962180][  T228] R13: ffff88800a30a128 R14: ffff88800a30a008 R15: ffff88800a30a000
[  102.962483][  T228] FS:  00007fa583208740(0000) GS:ffff888036080000(0000) knlGS:0000000000000000
[  102.962830][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  102.963084][  T228] CR2: 00005623ead6a000 CR3: 000000000b2e6006 CR4: 0000000000772ef0
[  102.963400][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  102.963706][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  102.964120][  T228] PKRU: 55555554
[  102.964277][  T228] Call Trace:
[  102.964437][  T228]  <TASK>
[ 102.964545][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 102.964752][ T228] ? __warn (kernel/panic.c:748) 
[ 102.964910][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 102.965125][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 102.965341][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 102.965499][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 102.965709][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 102.965930][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 102.966156][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 102.966417][ T228] ? _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) 
[ 102.966626][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 102.966835][ T228] register_netdevice (net/core/dev.c:11003) 
[ 102.967045][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 102.967273][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 102.967585][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 102.967853][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 102.968012][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 102.968292][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 102.968582][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 102.968846][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 102.969063][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 102.969336][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 102.969546][ T228] ? 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)) 
[ 102.969702][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 102.969915][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 102.970147][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 102.970354][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 102.970560][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 102.970768][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 102.971019][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 102.971234][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 102.971434][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 102.971643][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 102.971844][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 102.972054][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 102.972266][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 102.972468][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 102.972673][ T228] ? 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) 
[ 102.972889][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 102.973113][ T228] device_add (drivers/base/core.c:3672) 
[ 102.973323][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 102.973526][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 102.973744][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 102.974009][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 102.974282][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 102.974494][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 102.974714][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 102.974917][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 102.975138][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 102.975302][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 102.975511][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 102.975725][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 102.975939][ T228] ksys_write (fs/read_write.c:731) 
[ 102.976111][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 102.976327][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 102.976533][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  102.976785][  T228] RIP: 0033:0x7fa583349b77
[ 102.976993][ T228] 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
[  102.977706][  T228] RSP: 002b:00007ffdbc0e7c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  102.978010][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa583349b77
[  102.978319][  T228] RDX: 0000000000000004 RSI: 00005623ead93330 RDI: 0000000000000001
[  102.978620][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[  102.978926][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000004
[  102.979238][  T228] R13: 00007fa583405760 R14: 0000000000000004 R15: 00007fa5834009c0
| [  103.021573][  T228] ------------[ cut here ]------------
| [ 103.021898][ T228] WARNING: CPU: 2 PID: 228 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) 
| [  103.022394][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  103.023210][  T228] Tainted: [W]=WARN
[  103.023389][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 103.023632][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 103.023885][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[  103.024563][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[  103.024813][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  103.025121][  T228] RDX: 0000000000000000 RSI: ffff8880051d2c98 RDI: ffff8880050fd0a8
[  103.025408][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[  103.025691][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[  103.025983][  T228] R13: ffff8880051d2128 R14: ffff8880051d2008 R15: ffff8880051d2000
[  103.026283][  T228] FS:  00007fa583208740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  103.026618][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  103.026862][  T228] CR2: 00007f424c20d000 CR3: 000000000b2e6002 CR4: 0000000000772ef0
[  103.027164][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  103.027452][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  103.027739][  T228] PKRU: 55555554
[  103.027893][  T228] Call Trace:
[  103.028046][  T228]  <TASK>
[ 103.028169][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 103.028368][ T228] ? __warn (kernel/panic.c:748) 
[ 103.028532][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 103.028733][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 103.028944][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 103.029112][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 103.029311][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 103.029523][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 103.029729][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 103.029975][ T228] ? _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) 
[ 103.030194][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 103.030400][ T228] register_netdevice (net/core/dev.c:11003) 
[ 103.030602][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 103.030812][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 103.031025][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 103.031291][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 103.031561][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 103.031814][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 103.032012][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 103.032232][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 103.032486][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 103.032686][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 103.032890][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 103.033104][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 103.033312][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 103.033475][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 103.033681][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 103.033889][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 103.034113][ T228] ksys_write (fs/read_write.c:731) 
[ 103.034271][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 103.034498][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 103.034700][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  103.034943][  T228] RIP: 0033:0x7fa583349b77
[ 103.035159][ T228] 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
[  103.035831][  T228] RSP: 002b:00007ffdbc0e5538 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  103.036133][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[  103.036564][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[  103.036855][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[  103.037162][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[  103.037585][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [  105.052653][  T228] ------------[ cut here ]------------
| [ 105.052892][ T228] WARNING: CPU: 0 PID: 228 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) 
| [  105.053297][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  105.054100][  T228] Tainted: [W]=WARN
[  105.054252][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 105.054510][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 105.054750][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[  105.055416][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[  105.055653][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  105.055937][  T228] RDX: 0000000000000000 RSI: ffff8880051cac98 RDI: ffff8880050fd0a8
[  105.056230][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[  105.056509][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[  105.056788][  T228] R13: ffff8880051ca128 R14: ffff8880051ca008 R15: ffff8880051ca000
[  105.057072][  T228] FS:  00007fa583208740(0000) GS:ffff888036000000(0000) knlGS:0000000000000000
[  105.057407][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  105.057649][  T228] CR2: 00005623ead721e8 CR3: 000000000b2e6002 CR4: 0000000000772ef0
[  105.057931][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  105.058224][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  105.058506][  T228] PKRU: 55555554
[  105.058655][  T228] Call Trace:
[  105.058803][  T228]  <TASK>
[ 105.058903][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 105.059103][ T228] ? __warn (kernel/panic.c:748) 
[ 105.059256][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 105.059448][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 105.059644][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 105.059788][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 105.059976][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 105.060191][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 105.060391][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 105.060628][ T228] ? _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) 
[ 105.060823][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 105.061017][ T228] register_netdevice (net/core/dev.c:11003) 
[ 105.061227][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 105.061430][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 105.061637][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 105.061881][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 105.062152][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 105.062396][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 105.062589][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 105.062786][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 105.063025][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 105.063229][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 105.063418][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 105.063608][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 105.063806][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 105.063958][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 105.064162][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 105.064358][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 105.064569][ T228] ksys_write (fs/read_write.c:731) 
[ 105.064716][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 105.064912][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 105.065113][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  105.065349][  T228] RIP: 0033:0x7fa583349b77
[ 105.065543][ T228] 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
[  105.066200][  T228] RSP: 002b:00007ffdbc0e5538 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  105.066485][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[  105.066764][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[  105.067037][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[  105.067323][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[  105.067600][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [  106.772865][  T228] ------------[ cut here ]------------
| [ 106.773295][ T228] WARNING: CPU: 2 PID: 228 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) 
| [  106.773726][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  106.774754][  T228] Tainted: [W]=WARN
[  106.775041][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 106.775748][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.776238][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[  106.777494][  T228] RSP: 0018:ffffc90000ab7520 EFLAGS: 00010246
[  106.777954][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  106.778539][  T228] RDX: 0000000000000000 RSI: ffff8880099f2c98 RDI: ffff8880050fd0f8
[  106.779072][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[  106.779603][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[  106.780158][  T228] R13: ffff8880099f2128 R14: ffff8880099f2008 R15: ffff8880099f2000
[  106.780815][  T228] FS:  00007fa583208740(0000) GS:ffff888036100000(0000) knlGS:0000000000000000
[  106.781452][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  106.781910][  T228] CR2: 00005623ead6a000 CR3: 000000000b2e6003 CR4: 0000000000772ef0
[  106.782503][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  106.783050][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  106.783723][  T228] PKRU: 55555554
[  106.784013][  T228] Call Trace:
[  106.784314][  T228]  <TASK>
[ 106.784526][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.784903][ T228] ? __warn (kernel/panic.c:748) 
[ 106.785215][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.785598][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 106.785984][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 106.786320][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 106.786695][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 106.787116][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.787503][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 106.787964][ T228] ? _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) 
[ 106.788374][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 106.788764][ T228] register_netdevice (net/core/dev.c:11003) 
[ 106.789172][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 106.789571][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 106.790022][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 106.790544][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 106.790837][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 106.791343][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 106.791819][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 106.792319][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 106.792726][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 106.793213][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 106.793592][ T228] ? 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)) 
[ 106.793872][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 106.794316][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 106.794718][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 106.795122][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 106.795502][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 106.795869][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 106.796345][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 106.796724][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 106.797110][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 106.797487][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 106.797857][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 106.798298][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 106.798678][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 106.799048][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 106.799451][ T228] ? 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) 
[ 106.799841][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 106.800246][ T228] device_add (drivers/base/core.c:3672) 
[ 106.800610][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 106.800989][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 106.801408][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 106.801889][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 106.802420][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 106.802797][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 106.803207][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 106.803579][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 106.803974][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 106.804298][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 106.804699][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 106.805106][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 106.805495][ T228] ksys_write (fs/read_write.c:731) 
[ 106.805789][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 106.806235][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 106.806623][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  106.807067][  T228] RIP: 0033:0x7fa583349b77
[ 106.807477][ T228] 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
[  106.808737][  T228] RSP: 002b:00007ffdbc0e7c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  106.809310][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa583349b77
[  106.809852][  T228] RDX: 0000000000000004 RSI: 00005623ead93330 RDI: 0000000000000001
[  106.810435][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[  106.810982][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000004
[  106.811549][  T228] R13: 00007fa583405760 R14: 0000000000000004 R15: 00007fa5834009c0
| [  106.929566][  T228] ------------[ cut here ]------------
| [ 106.929885][ T228] WARNING: CPU: 3 PID: 228 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) 
| [  106.930301][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  106.931121][  T228] Tainted: [W]=WARN
[  106.931275][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 106.931548][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.931809][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[  106.932509][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[  106.932780][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  106.933086][  T228] RDX: 0000000000000000 RSI: ffff88800b3cac98 RDI: ffff8880050fd0a8
[  106.933396][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[  106.933689][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[  106.933983][  T228] R13: ffff88800b3ca128 R14: ffff88800b3ca008 R15: ffff88800b3ca000
[  106.934296][  T228] FS:  00007fa583208740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  106.934661][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  106.934916][  T228] CR2: 00005623ead93330 CR3: 000000000b2e6004 CR4: 0000000000772ef0
[  106.935221][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  106.935649][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  106.935949][  T228] PKRU: 55555554
[  106.936113][  T228] Call Trace:
[  106.936269][  T228]  <TASK>
[ 106.936377][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.936582][ T228] ? __warn (kernel/panic.c:748) 
[ 106.936744][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.936954][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 106.937177][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 106.937332][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 106.937528][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 106.937743][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 106.937955][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 106.938211][ T228] ? _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) 
[ 106.938429][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 106.938634][ T228] register_netdevice (net/core/dev.c:11003) 
[ 106.938843][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 106.939055][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 106.939299][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 106.939567][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 106.939855][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 106.940120][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 106.940320][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 106.940532][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 106.940792][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 106.940989][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 106.941197][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 106.941404][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 106.941608][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 106.941770][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 106.941970][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 106.942178][ T228] ? 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) 
[ 106.942385][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 106.942592][ T228] ksys_write (fs/read_write.c:731) 
[ 106.942743][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 106.942948][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 106.943167][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 106.943367][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  106.943609][  T228] RIP: 0033:0x7fa583349b77
[ 106.943811][ T228] 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
[  106.944530][  T228] RSP: 002b:00007ffdbc0e7c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  106.944835][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[  106.945142][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[  106.945442][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[  106.945752][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[  106.946055][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [  107.606465][  T228] ------------[ cut here ]------------
| [ 107.606729][ T228] WARNING: CPU: 3 PID: 228 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) 
| [  107.607158][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  107.608000][  T228] Tainted: [W]=WARN
[  107.608169][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 107.608437][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 107.608706][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[  107.609418][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[  107.609670][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  107.609966][  T228] RDX: 0000000000000000 RSI: ffff88800d422c98 RDI: ffff8880050fd0a8
[  107.610272][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[  107.610568][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[  107.610868][  T228] R13: ffff88800d422128 R14: ffff88800d422008 R15: ffff88800d422000
[  107.611169][  T228] FS:  00007fa583208740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  107.611515][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  107.611774][  T228] CR2: 00005623ead93330 CR3: 000000000b2e6003 CR4: 0000000000772ef0
[  107.612077][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  107.612382][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  107.612681][  T228] PKRU: 55555554
[  107.612832][  T228] Call Trace:
[  107.612982][  T228]  <TASK>
[ 107.613099][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 107.613304][ T228] ? __warn (kernel/panic.c:748) 
[ 107.613461][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 107.613663][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 107.613874][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 107.614029][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 107.614240][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 107.614468][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 107.614681][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 107.614938][ T228] ? _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) 
[ 107.615160][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 107.615365][ T228] register_netdevice (net/core/dev.c:11003) 
[ 107.615578][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 107.615798][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 107.616017][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 107.616285][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 107.616569][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 107.616832][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 107.617039][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 107.617268][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 107.617530][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 107.617733][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 107.617939][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 107.618165][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 107.618380][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 107.618545][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 107.618762][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 107.618970][ T228] ? 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) 
[ 107.619217][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 107.619432][ T228] ksys_write (fs/read_write.c:731) 
[ 107.619599][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 107.619808][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 107.620030][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 107.620249][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  107.620508][  T228] RIP: 0033:0x7fa583349b77
[ 107.620725][ T228] 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
[  107.621465][  T228] RSP: 002b:00007ffdbc0e7c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  107.621775][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[  107.622082][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[  107.622396][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[  107.622709][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[  107.623020][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [  114.800023][  T228] ------------[ cut here ]------------
| [ 114.801637][ T228] WARNING: CPU: 3 PID: 228 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) 
| [  114.802067][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  114.802932][  T228] Tainted: [W]=WARN
[  114.803099][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 114.803358][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 114.803623][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[  114.804361][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[  114.804631][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  114.804938][  T228] RDX: 0000000000000000 RSI: ffff8880051c2c98 RDI: ffff8880050fd0a8
[  114.805256][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[  114.805565][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[  114.805874][  T228] R13: ffff8880051c2128 R14: ffff8880051c2008 R15: ffff8880051c2000
[  114.806195][  T228] FS:  00007fa583208740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  114.806556][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  114.806812][  T228] CR2: 000055d7fcc7daca CR3: 000000000b2e6006 CR4: 0000000000772ef0
[  114.807132][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  114.807451][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  114.807770][  T228] PKRU: 55555554
[  114.807930][  T228] Call Trace:
[  114.808087][  T228]  <TASK>
[ 114.808205][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 114.808415][ T228] ? __warn (kernel/panic.c:748) 
[ 114.808578][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 114.808789][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 114.809007][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 114.809192][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 114.809401][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 114.809624][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 114.809841][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 114.810114][ T228] ? _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) 
[ 114.810331][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 114.810542][ T228] register_netdevice (net/core/dev.c:11003) 
[ 114.810761][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 114.810978][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 114.811213][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 114.811483][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 114.811764][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 114.812033][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 114.812260][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 114.812480][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 114.812746][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 114.812952][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 114.813169][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 114.813380][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 114.813598][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 114.813764][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 114.813975][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 114.814202][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 114.814445][ T228] ksys_write (fs/read_write.c:731) 
[ 114.814605][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 114.814823][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 114.815031][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  114.815303][  T228] RIP: 0033:0x7fa583349b77
[ 114.815516][ T228] 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
[  114.816225][  T228] RSP: 002b:00007ffdbc0e7c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  114.816536][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[  114.816846][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[  114.817156][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[  114.817457][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002
[  114.817759][  T228] R13: 00007fa583405760 R14: 0000000000000002 R15: 00007fa5834009c0
| [  117.088302][  T228] ------------[ cut here ]------------
| [ 117.088757][ T228] WARNING: CPU: 3 PID: 228 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) 
| [  117.089230][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  117.090146][  T228] Tainted: [W]=WARN
[  117.090317][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 117.090592][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 117.090867][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[  117.091640][  T228] RSP: 0018:ffffc90000ab7520 EFLAGS: 00010246
[  117.091920][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  117.092259][  T228] RDX: 0000000000000000 RSI: ffff888009cbac98 RDI: ffff8880050fd0f8
[  117.092580][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[  117.092908][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[  117.093267][  T228] R13: ffff888009cba128 R14: ffff888009cba008 R15: ffff888009cba000
[  117.093592][  T228] FS:  00007fa583208740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  117.093991][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  117.094279][  T228] CR2: 00007f30f7b95000 CR3: 000000000b2e6001 CR4: 0000000000772ef0
[  117.094614][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  117.094938][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  117.095515][  T228] PKRU: 55555554
[  117.095682][  T228] Call Trace:
[  117.095850][  T228]  <TASK>
[ 117.095966][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 117.096202][ T228] ? __warn (kernel/panic.c:748) 
[ 117.096375][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 117.096596][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 117.096824][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 117.096994][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 117.097221][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 117.097456][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 117.097688][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 117.097964][ T228] ? _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) 
[ 117.098231][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 117.098457][ T228] register_netdevice (net/core/dev.c:11003) 
[ 117.098682][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 117.098913][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 117.099161][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 117.099442][ T228] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 117.099610][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 117.099901][ T228] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 117.100186][ T228] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 117.100467][ T228] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 117.100696][ T228] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 117.100970][ T228] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 117.101202][ T228] ? 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)) 
[ 117.101374][ T228] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 117.101599][ T228] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 117.101829][ T228] __driver_probe_device (drivers/base/dd.c:800) 
[ 117.102055][ T228] driver_probe_device (drivers/base/dd.c:830) 
[ 117.102284][ T228] __device_attach_driver (drivers/base/dd.c:959) 
[ 117.102504][ T228] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 117.102771][ T228] bus_for_each_drv (drivers/base/bus.c:462) 
[ 117.102996][ T228] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 117.103220][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 117.103444][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 117.103662][ T228] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 117.103885][ T228] __device_attach (drivers/base/dd.c:1030) 
[ 117.104112][ T228] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 117.104330][ T228] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 117.104567][ T228] ? 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) 
[ 117.104794][ T228] bus_probe_device (drivers/base/bus.c:537) 
[ 117.105019][ T228] device_add (drivers/base/core.c:3672) 
[ 117.105254][ T228] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 117.105472][ T228] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 117.105701][ T228] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 117.105987][ T228] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 117.106286][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 117.106505][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 117.106732][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 117.106948][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 117.107181][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 117.107357][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 117.107583][ T228] ? find_held_lock (kernel/locking/lockdep.c:5341) 
[ 117.107817][ T228] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 117.108042][ T228] ksys_write (fs/read_write.c:731) 
[ 117.108220][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 117.108451][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 117.108673][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  117.108942][  T228] RIP: 0033:0x7fa583349b77
[ 117.109176][ T228] 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
[  117.109933][  T228] RSP: 002b:00007ffdbc0e7c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  117.110267][  T228] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa583349b77
[  117.110589][  T228] RDX: 0000000000000004 RSI: 00005623ead93330 RDI: 0000000000000001
[  117.110920][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[  117.111254][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000004
[  117.111578][  T228] R13: 00007fa583405760 R14: 0000000000000004 R15: 00007fa5834009c0
| [  117.219345][  T228] ------------[ cut here ]------------
| [ 117.219659][ T228] WARNING: CPU: 3 PID: 228 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) 
| [  117.220190][  T228] Modules linked in: geneve netdevsim vxlan ip6_udp_tunnel udp_tunnel [last unloaded: netdevsim]
| [  117.221027][  T228] Tainted: [W]=WARN
[  117.221201][  T228] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 117.221454][ T228] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 117.221712][ T228] Code: 00 e8 a3 4a fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf 98 0c 00 00 be ff ff ff ff e8 d8 33 78 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	a3 4a fe ff 48 8b 5c 	movabs %eax,0x58245c8b48fffe4a
   9:	24 58 
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf 98 0c 00 00 	lea    0xc98(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 d8 33 78 00       	call   0x7833f9
  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
[  117.222434][  T228] RSP: 0018:ffffc90000ab7910 EFLAGS: 00010246
[  117.222684][  T228] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[  117.222991][  T228] RDX: 0000000000000000 RSI: ffff8880051d2c98 RDI: ffff8880050fd0a8
[  117.223309][  T228] RBP: ffffffffabd23440 R08: 0000000000000000 R09: fffffbfff537d83c
[  117.223614][  T228] R10: ffffffffa9bec1e7 R11: ffff8880050fc5c0 R12: 0000000000000000
[  117.223920][  T228] R13: ffff8880051d2128 R14: ffff8880051d2008 R15: ffff8880051d2000
[  117.224226][  T228] FS:  00007fa583208740(0000) GS:ffff888036180000(0000) knlGS:0000000000000000
[  117.224590][  T228] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  117.224837][  T228] CR2: 00007fa5833bc733 CR3: 000000000b2e6001 CR4: 0000000000772ef0
[  117.225150][  T228] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  117.225445][  T228] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  117.225742][  T228] PKRU: 55555554
[  117.225899][  T228] Call Trace:
[  117.226049][  T228]  <TASK>
[ 117.226162][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 117.226362][ T228] ? __warn (kernel/panic.c:748) 
[ 117.226521][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 117.226724][ T228] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 117.226932][ T228] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 117.227085][ T228] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 117.227303][ T228] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 117.227521][ T228] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 117.227734][ T228] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 117.227984][ T228] ? _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) 
[ 117.228202][ T228] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 117.228407][ T228] register_netdevice (net/core/dev.c:11003) 
[ 117.228613][ T228] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 117.228829][ T228] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 117.229050][ T228] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 117.229314][ T228] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 117.229593][ T228] nsim_drv_port_add (drivers/net/netdevsim/dev.c:1714) netdevsim 
[ 117.229851][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 117.230055][ T228] new_port_store (drivers/net/netdevsim/bus.c:79) netdevsim 
[ 117.230278][ T228] ? __pfx_new_port_store (drivers/net/netdevsim/bus.c:67) netdevsim 
[ 117.230532][ T228] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 117.230729][ T228] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 117.230928][ T228] ? sysfs_kf_write (fs/sysfs/file.c:133) 
[ 117.231158][ T228] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 117.231367][ T228] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 117.231528][ T228] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 117.231734][ T228] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 117.231944][ T228] ? 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) 
[ 117.232163][ T228] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 117.232372][ T228] ksys_write (fs/read_write.c:731) 
[ 117.232528][ T228] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 117.232727][ T228] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 117.232937][ T228] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 117.233150][ T228] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  117.233397][  T228] RIP: 0033:0x7fa583349b77
[ 117.233609][ T228] 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
[  117.234315][  T228] RSP: 002b:00007ffdbc0e7c38 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[  117.234627][  T228] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007fa583349b77
[  117.234932][  T228] RDX: 0000000000000002 RSI: 00005623ead93330 RDI: 0000000000000001
[  117.235249][  T228] RBP: 00005623ead93330 R08: 0000000000000000 R09: 00007fa5833bc4e0
[  117.235551][  T228] R10: 00007fa5833bc3e0 R11: 0000000000000246 R12: 0000000000000002


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