======================================
| 0
| xx__-> [ 4269.520010][ T8716] ------------[ cut here ]------------
| [ 4269.520703][ T8716] WARNING: CPU: 3 PID: 8716 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) 
| [ 4269.521641][ T8716] Modules linked in: netdevsim psample nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 unix_diag geneve ip6_gre ip_gre gre sha1_generic xfrm_user xt_policy nft_compat nf_tables act_gact cls_flower sch_ingress vxlan
[ 4269.523974][ T8716] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4269.524541][ T8716] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4269.525027][ T8716] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[ 4269.526341][ T8716] RSP: 0018:ffffc900002cf528 EFLAGS: 00010246
[ 4269.526819][ T8716] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[ 4269.527430][ T8716] RDX: 0000000000000000 RSI: ffff888012782cd0 RDI: ffff88801000d0f8
[ 4269.527991][ T8716] RBP: ffff888012a90040 R08: 0000000000000000 R09: fffffbfff2342504
[ 4269.528566][ T8716] R10: ffffffff91a12827 R11: ffff88801000c5c0 R12: 0000000000000000
[ 4269.529117][ T8716] R13: ffff888012782130 R14: ffff888012782008 R15: ffff888012782000
[ 4269.529732][ T8716] FS:  00007f2005f83740(0000) GS:ffff88806cf80000(0000) knlGS:0000000000000000
[ 4269.530397][ T8716] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4269.530870][ T8716] CR2: 0000563c96f082f8 CR3: 000000000a636003 CR4: 0000000000772ef0
[ 4269.531461][ T8716] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4269.532041][ T8716] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 4269.532604][ T8716] PKRU: 55555554
[ 4269.532890][ T8716] Call Trace:
[ 4269.533175][ T8716]  <TASK>
[ 4269.533398][ T8716] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4269.533776][ T8716] ? __warn (kernel/panic.c:748) 
[ 4269.534072][ T8716] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4269.534480][ T8716] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 4269.534872][ T8716] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 4269.535147][ T8716] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 4269.535559][ T8716] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 4269.535961][ T8716] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4269.536359][ T8716] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 4269.536748][ T8716] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 4269.537222][ T8716] ? _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) 
[ 4269.537642][ T8716] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 4269.538033][ T8716] register_netdevice (net/core/dev.c:11003) 
[ 4269.538447][ T8716] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 4269.538815][ T8716] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 4269.539210][ T8716] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 4269.539668][ T8716] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 4269.540174][ T8716] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 4269.540482][ T8716] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 4269.540972][ T8716] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 4269.541477][ T8716] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 4269.541964][ T8716] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 4269.542378][ T8716] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 4269.542874][ T8716] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 4269.543247][ T8716] ? 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)) 
[ 4269.543571][ T8716] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 4269.543957][ T8716] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 4269.544413][ T8716] __driver_probe_device (drivers/base/dd.c:800) 
[ 4269.544807][ T8716] driver_probe_device (drivers/base/dd.c:830) 
[ 4269.545183][ T8716] __device_attach_driver (drivers/base/dd.c:959) 
[ 4269.545595][ T8716] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 4269.546053][ T8716] bus_for_each_drv (drivers/base/bus.c:462) 
[ 4269.546452][ T8716] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 4269.546818][ T8716] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 4269.547183][ T8716] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 4269.547599][ T8716] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 4269.547979][ T8716] __device_attach (drivers/base/dd.c:1030) 
[ 4269.548383][ T8716] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 4269.548755][ T8716] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 4269.549130][ T8716] ? 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) 
[ 4269.549544][ T8716] bus_probe_device (drivers/base/bus.c:537) 
[ 4269.549934][ T8716] device_add (drivers/base/core.c:3672) 
[ 4269.550349][ T8716] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 4269.550717][ T8716] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 4269.551112][ T8716] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 4269.551650][ T8716] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 4269.552135][ T8716] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 4269.552527][ T8716] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 4269.552910][ T8716] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 4269.553279][ T8716] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 4269.553705][ T8716] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 4269.554019][ T8716] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 4269.554428][ T8716] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 4269.554800][ T8716] ? 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) 
[ 4269.555191][ T8716] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 4269.555621][ T8716] ksys_write (fs/read_write.c:731) 
[ 4269.555919][ T8716] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 4269.556285][ T8716] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 4269.556701][ T8716] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 4269.557092][ T8716] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 4269.557571][ T8716] RIP: 0033:0x7f20060c4b77
[ 4269.557957][ T8716] 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
[ 4269.559239][ T8716] RSP: 002b:00007ffd037d77c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 4269.559877][ T8716] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f20060c4b77
[ 4269.560444][ T8716] RDX: 0000000000000007 RSI: 0000563c96f072f0 RDI: 0000000000000001
[ 4269.561031][ T8716] RBP: 0000563c96f072f0 R08: 0000000000000006 R09: 0000000000000077
[ 4269.561598][ T8716] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000007
[ 4269.562165][ T8716] R13: 00007f2006180760 R14: 0000000000000007 R15: 00007f200617b9c0
| [ 4284.926367][ T8758] ------------[ cut here ]------------
| [ 4284.926807][ T8758] WARNING: CPU: 2 PID: 8758 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) 
| [ 4284.927249][ T8758] Modules linked in: drop_monitor netdevsim psample nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 unix_diag geneve ip6_gre ip_gre gre sha1_generic xfrm_user xt_policy nft_compat nf_tables act_gact cls_flower sch_ingress vxlan
| [ 4284.928912][ T8758] Tainted: [W]=WARN
[ 4284.929214][ T8758] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 4284.929575][ T8758] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4284.929863][ T8758] Code: 00 e8 d3 48 fe ff 48 8b 5c 24 58 e9 87 fb ff ff 49 8d bf d0 0c 00 00 be ff ff ff ff e8 98 3b 99 00 85 c0 0f 85 99 00 00 00 90 <0f> 0b 90 48 b8 00 00 00 00 00 fc ff df 48 8b 54 24 20 48 c1 ea 03
All code
========
   0:	00 e8                	add    %ch,%al
   2:	d3 48 fe             	rorl   %cl,-0x2(%rax)
   5:	ff 48 8b             	decl   -0x75(%rax)
   8:	5c                   	pop    %rsp
   9:	24 58                	and    $0x58,%al
   b:	e9 87 fb ff ff       	jmp    0xfffffffffffffb97
  10:	49 8d bf d0 0c 00 00 	lea    0xcd0(%r15),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 98 3b 99 00       	call   0x993bb9
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 99 00 00 00    	jne    0xc2
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  34:	fc ff df 
  37:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  3c:	48 c1 ea 03          	shr    $0x3,%rdx

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   a:	fc ff df 
   d:	48 8b 54 24 20       	mov    0x20(%rsp),%rdx
  12:	48 c1 ea 03          	shr    $0x3,%rdx
[ 4284.930599][ T8758] RSP: 0018:ffffc900005a7528 EFLAGS: 00010246
[ 4284.930871][ T8758] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[ 4284.931188][ T8758] RDX: 0000000000000000 RSI: ffff8880114aacd0 RDI: ffff888015ab0b78
[ 4284.931522][ T8758] RBP: ffff888012a938c0 R08: 0000000000000000 R09: fffffbfff2342504
[ 4284.931840][ T8758] R10: ffffffff91a12827 R11: ffff888015ab0040 R12: 0000000000000000
[ 4284.932157][ T8758] R13: ffff8880114aa130 R14: ffff8880114aa008 R15: ffff8880114aa000
[ 4284.932484][ T8758] FS:  00007f2f25f64740(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
[ 4284.932855][ T8758] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4284.933122][ T8758] CR2: 0000558ea41672f8 CR3: 000000000a2c6002 CR4: 0000000000772ef0
[ 4284.933450][ T8758] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4284.933767][ T8758] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 4284.934091][ T8758] PKRU: 55555554
[ 4284.934267][ T8758] Call Trace:
[ 4284.934447][ T8758]  <TASK>
[ 4284.934570][ T8758] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4284.934789][ T8758] ? __warn (kernel/panic.c:748) 
[ 4284.934963][ T8758] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4284.935185][ T8758] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[ 4284.935425][ T8758] ? handle_bug (arch/x86/kernel/traps.c:285) 
[ 4284.935600][ T8758] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[ 4284.935822][ T8758] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[ 4284.936229][ T8758] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4284.936465][ T8758] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[ 4284.936693][ T8758] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[ 4284.936970][ T8758] ? _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) 
[ 4284.937199][ T8758] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[ 4284.937446][ T8758] register_netdevice (net/core/dev.c:11003) 
[ 4284.937674][ T8758] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[ 4284.937891][ T8758] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[ 4284.938129][ T8758] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[ 4284.938378][ T8758] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[ 4284.938675][ T8758] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[ 4284.938851][ T8758] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[ 4284.939141][ T8758] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[ 4284.939432][ T8758] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[ 4284.939713][ T8758] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[ 4284.939944][ T8758] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[ 4284.940220][ T8758] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[ 4284.940461][ T8758] ? 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)) 
[ 4284.940640][ T8758] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[ 4284.940868][ T8758] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[ 4284.941096][ T8758] __driver_probe_device (drivers/base/dd.c:800) 
[ 4284.941331][ T8758] driver_probe_device (drivers/base/dd.c:830) 
[ 4284.941553][ T8758] __device_attach_driver (drivers/base/dd.c:959) 
[ 4284.941777][ T8758] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[ 4284.942042][ T8758] bus_for_each_drv (drivers/base/bus.c:462) 
[ 4284.942269][ T8758] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[ 4284.942498][ T8758] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 4284.942719][ T8758] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[ 4284.942935][ T8758] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[ 4284.943160][ T8758] __device_attach (drivers/base/dd.c:1030) 
[ 4284.943394][ T8758] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[ 4284.943612][ T8758] ? bus_to_subsys (drivers/base/bus.c:85) 
[ 4284.943834][ T8758] ? 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) 
[ 4284.944082][ T8758] bus_probe_device (drivers/base/bus.c:537) 
[ 4284.944316][ T8758] device_add (drivers/base/core.c:3672) 
[ 4284.944541][ T8758] ? __pfx_device_add (drivers/base/core.c:3548) 
[ 4284.944757][ T8758] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[ 4284.944990][ T8758] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[ 4284.945271][ T8758] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[ 4284.945572][ T8758] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 4284.945789][ T8758] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[ 4284.946017][ T8758] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[ 4284.946233][ T8758] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[ 4284.946473][ T8758] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[ 4284.946675][ T8758] ? __pfx_vfs_write (fs/read_write.c:660) 
[ 4284.946905][ T8758] ? __lock_release (kernel/locking/lockdep.c:5527) 
[ 4284.947128][ T8758] ? 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) 
[ 4284.947375][ T8758] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[ 4284.947610][ T8758] ksys_write (fs/read_write.c:731) 
[ 4284.947782][ T8758] ? __pfx_ksys_write (fs/read_write.c:721) 
[ 4284.948004][ T8758] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[ 4284.948232][ T8758] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[ 4284.948466][ T8758] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 4284.948730][ T8758] RIP: 0033:0x7f2f260a5b77
[ 4284.948962][ T8758] 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
[ 4284.949692][ T8758] RSP: 002b:00007ffeba4e7a78 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 4284.950013][ T8758] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f2f260a5b77
[ 4284.950347][ T8758] RDX: 0000000000000007 RSI: 0000558ea41662f0 RDI: 0000000000000001
[ 4284.950671][ T8758] RBP: 0000558ea41662f0 R08: 0000000000000006 R09: 0000000000000077
[ 4284.950985][ T8758] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000007


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