======================================
| 0
| xx__-> [ 4551.447252][T22590] ------------[ cut here ]------------
| [4551.447634][T22590] WARNING: CPU: 1 PID: 22590 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) 
| [ 4551.448241][T22590] Modules linked in: netdevsim psample dccp_ipv6 dccp_ipv4 dccp bonding act_gact vxlan ip6_gre gre act_mirred act_tunnel_key cls_flower bareudp mpls_gso mpls_iptunnel mpls_router sch_ingress nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6t_REJECT ipt_REJECT nft_compat nf_tables
[ 4551.449832][T22590] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[4551.450121][T22590] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4551.450408][T22590] 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
[ 4551.451187][T22590] RSP: 0018:ffffc90000277528 EFLAGS: 00010246
[ 4551.451489][T22590] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[ 4551.451820][T22590] RDX: 0000000000000000 RSI: ffff888015412cd0 RDI: ffff88801a02d0f8
[ 4551.452179][T22590] RBP: ffff888002935500 R08: 0000000000000000 R09: fffffbfff4cc2504
[ 4551.452513][T22590] R10: ffffffffa6612827 R11: ffff88801a02c5c0 R12: 0000000000000000
[ 4551.452850][T22590] R13: ffff888015412130 R14: ffff888015412008 R15: ffff888015412000
[ 4551.453305][T22590] FS:  00007f7d4b552740(0000) GS:ffff88806ce80000(0000) knlGS:0000000000000000
[ 4551.453693][T22590] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4551.453983][T22590] CR2: 00007fd4ed59d960 CR3: 0000000027918003 CR4: 0000000000772ef0
[ 4551.454319][T22590] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4551.454674][T22590] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 4551.455018][T22590] PKRU: 55555554
[ 4551.455192][T22590] Call Trace:
[ 4551.455363][T22590]  <TASK>
[4551.455481][T22590] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[4551.455709][T22590] ? __warn (kernel/panic.c:748) 
[4551.455880][T22590] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[4551.456130][T22590] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[4551.456363][T22590] ? handle_bug (arch/x86/kernel/traps.c:285) 
[4551.456532][T22590] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[4551.456756][T22590] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[4551.457001][T22590] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[4551.457225][T22590] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[4551.457452][T22590] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[4551.457735][T22590] ? _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) 
[4551.457974][T22590] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[4551.458202][T22590] register_netdevice (net/core/dev.c:11003) 
[4551.458433][T22590] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[4551.458650][T22590] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[4551.458884][T22590] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[4551.459135][T22590] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[4551.459422][T22590] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[4551.459592][T22590] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[4551.459880][T22590] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[4551.460188][T22590] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[4551.460480][T22590] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[4551.460717][T22590] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[4551.461009][T22590] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[4551.461233][T22590] ? 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)) 
[4551.461406][T22590] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[4551.461642][T22590] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[4551.461868][T22590] __driver_probe_device (drivers/base/dd.c:800) 
[4551.462103][T22590] driver_probe_device (drivers/base/dd.c:830) 
[4551.462330][T22590] __device_attach_driver (drivers/base/dd.c:959) 
[4551.462556][T22590] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[4551.462824][T22590] bus_for_each_drv (drivers/base/bus.c:462) 
[4551.463056][T22590] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[4551.463275][T22590] ? bus_to_subsys (drivers/base/bus.c:85) 
[4551.463495][T22590] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[4551.463715][T22590] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[4551.463971][T22590] __device_attach (drivers/base/dd.c:1030) 
[4551.464192][T22590] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[4551.464411][T22590] ? bus_to_subsys (drivers/base/bus.c:85) 
[4551.464631][T22590] ? 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) 
[4551.464859][T22590] bus_probe_device (drivers/base/bus.c:537) 
[4551.465098][T22590] device_add (drivers/base/core.c:3672) 
[4551.465327][T22590] ? __pfx_device_add (drivers/base/core.c:3548) 
[4551.465547][T22590] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[4551.465787][T22590] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[4551.466081][T22590] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[4551.466369][T22590] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[4551.466589][T22590] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[4551.466818][T22590] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[4551.467045][T22590] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[4551.467279][T22590] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[4551.467453][T22590] ? __pfx_vfs_write (fs/read_write.c:660) 
[4551.467678][T22590] ? __lock_release (kernel/locking/lockdep.c:5527) 
[4551.467895][T22590] ? 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) 
[4551.468145][T22590] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[4551.468381][T22590] ksys_write (fs/read_write.c:731) 
[4551.468551][T22590] ? __pfx_ksys_write (fs/read_write.c:721) 
[4551.468773][T22590] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[4551.469021][T22590] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[4551.469248][T22590] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 4551.469520][T22590] RIP: 0033:0x7f7d4b693b77
[ 4551.469751][T22590] 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
[ 4551.470532][T22590] RSP: 002b:00007ffe89156788 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 4551.470867][T22590] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7d4b693b77
[ 4551.471210][T22590] RDX: 0000000000000007 RSI: 0000558886a7e2f0 RDI: 0000000000000001
[ 4551.471552][T22590] RBP: 0000558886a7e2f0 R08: 0000000000000006 R09: 0000000000000077
[ 4551.471887][T22590] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000007
[ 4551.472227][T22590] R13: 00007f7d4b74f760 R14: 0000000000000007 R15: 00007f7d4b74a9c0
| [ 4566.190632][T22632] ------------[ cut here ]------------
| [4566.191058][T22632] WARNING: CPU: 3 PID: 22632 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) 
| [ 4566.191519][T22632] Modules linked in: drop_monitor netdevsim psample dccp_ipv6 dccp_ipv4 dccp bonding act_gact vxlan ip6_gre gre act_mirred act_tunnel_key cls_flower bareudp mpls_gso mpls_iptunnel mpls_router sch_ingress nft_chain_nat xt_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6t_REJECT ipt_REJECT nft_compat nf_tables
| [ 4566.193241][T22632] Tainted: [W]=WARN
[ 4566.193426][T22632] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[4566.193682][T22632] RIP: 0010:__netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[ 4566.193959][T22632] 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
[ 4566.194742][T22632] RSP: 0018:ffffc90000557528 EFLAGS: 00010246
[ 4566.195010][T22632] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000001
[ 4566.195318][T22632] RDX: 0000000000000000 RSI: ffff88801f04acd0 RDI: ffff88801497d0f8
[ 4566.195637][T22632] RBP: ffff888002930040 R08: 0000000000000000 R09: fffffbfff4cc2504
[ 4566.195952][T22632] R10: ffffffffa6612827 R11: ffff88801497c5c0 R12: 0000000000000000
[ 4566.196258][T22632] R13: ffff88801f04a130 R14: ffff88801f04a008 R15: ffff88801f04a000
[ 4566.196563][T22632] FS:  00007f7868ec5740(0000) GS:ffff88806cf80000(0000) knlGS:0000000000000000
[ 4566.196922][T22632] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 4566.197202][T22632] CR2: 000055fe1d4a0610 CR3: 00000000278ba004 CR4: 0000000000772ef0
[ 4566.197511][T22632] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 4566.197815][T22632] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 4566.198134][T22632] PKRU: 55555554
[ 4566.198296][T22632] Call Trace:
[ 4566.198459][T22632]  <TASK>
[4566.198568][T22632] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[4566.198777][T22632] ? __warn (kernel/panic.c:748) 
[4566.198946][T22632] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[4566.199156][T22632] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[4566.199369][T22632] ? handle_bug (arch/x86/kernel/traps.c:285) 
[4566.199528][T22632] ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1)) 
[4566.199735][T22632] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[4566.199975][T22632] ? __netdev_update_features (./include/net/netdev_lock.h:52 ./include/net/netdev_lock.h:49 net/core/dev.c:10566) 
[4566.200185][T22632] ? __netdev_update_features (./include/net/netdev_lock.h:52 net/core/dev.c:10566) 
[4566.200398][T22632] ? __pfx___netdev_update_features (net/core/dev.c:10559) 
[4566.200662][T22632] ? _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) 
[4566.200875][T22632] ? netdev_register_kobject (net/core/net-sysfs.c:2344) 
[4566.201097][T22632] register_netdevice (net/core/dev.c:11003) 
[4566.201332][T22632] ? __pfx_register_netdevice (net/core/dev.c:10881) 
[4566.201580][T22632] ? __debugfs_create_file (fs/debugfs/inode.c:466) 
[4566.201803][T22632] nsim_create (drivers/net/netdevsim/netdev.c:958 drivers/net/netdevsim/netdev.c:1018) netdevsim 
[4566.202038][T22632] __nsim_dev_port_add (drivers/net/netdevsim/dev.c:1393) netdevsim 
[4566.202304][T22632] ? mark_lock (kernel/locking/lockdep.c:4729 (discriminator 3)) 
[4566.202466][T22632] ? __pfx___nsim_dev_port_add (drivers/net/netdevsim/dev.c:1357) netdevsim 
[4566.202738][T22632] ? lockdep_hardirqs_on_prepare (kernel/locking/lockdep.c:4349 kernel/locking/lockdep.c:4408) 
[4566.203021][T22632] nsim_dev_port_add_all (drivers/net/netdevsim/dev.c:1449) netdevsim 
[4566.203289][T22632] nsim_drv_probe (drivers/net/netdevsim/dev.c:1607) netdevsim 
[4566.203509][T22632] ? __pfx_nsim_drv_probe (drivers/net/netdevsim/dev.c:1528) netdevsim 
[4566.203772][T22632] ? kernfs_create_link (fs/kernfs/symlink.c:48) 
[4566.203990][T22632] ? 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)) 
[4566.204149][T22632] ? sysfs_do_create_link_sd (fs/sysfs/symlink.c:48) 
[4566.204370][T22632] really_probe (drivers/base/dd.c:579 drivers/base/dd.c:658) 
[4566.204585][T22632] __driver_probe_device (drivers/base/dd.c:800) 
[4566.204798][T22632] driver_probe_device (drivers/base/dd.c:830) 
[4566.205013][T22632] __device_attach_driver (drivers/base/dd.c:959) 
[4566.205225][T22632] ? __pfx___device_attach_driver (drivers/base/dd.c:922) 
[4566.205478][T22632] bus_for_each_drv (drivers/base/bus.c:462) 
[4566.205687][T22632] ? __pfx_bus_for_each_drv (drivers/base/bus.c:450) 
[4566.205896][T22632] ? bus_to_subsys (drivers/base/bus.c:85) 
[4566.206116][T22632] ? __pfx___lock_release (kernel/locking/lockdep.c:5503) 
[4566.206322][T22632] ? __pfx_lock_acquire.part.0 (kernel/locking/lockdep.c:5816) 
[4566.206533][T22632] __device_attach (drivers/base/dd.c:1030) 
[4566.206741][T22632] ? __pfx___device_attach (drivers/base/dd.c:1001) 
[4566.206953][T22632] ? bus_to_subsys (drivers/base/bus.c:85) 
[4566.207160][T22632] ? 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) 
[4566.207381][T22632] bus_probe_device (drivers/base/bus.c:537) 
[4566.207594][T22632] device_add (drivers/base/core.c:3672) 
[4566.207803][T22632] ? __pfx_device_add (drivers/base/core.c:3548) 
[4566.208015][T22632] ? __init_waitqueue_head (./include/linux/list.h:37 kernel/sched/wait.c:12) 
[4566.208233][T22632] new_device_store (drivers/net/netdevsim/bus.c:443 drivers/net/netdevsim/bus.c:173) netdevsim 
[4566.208500][T22632] ? __pfx_new_device_store (drivers/net/netdevsim/bus.c:142) netdevsim 
[4566.208768][T22632] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[4566.208986][T22632] ? sysfs_file_ops (fs/sysfs/file.c:31 (discriminator 1)) 
[4566.209203][T22632] ? __pfx_sysfs_kf_write (fs/sysfs/file.c:132) 
[4566.209407][T22632] kernfs_fop_write_iter (fs/kernfs/file.c:334) 
[4566.209621][T22632] vfs_write (fs/read_write.c:586 fs/read_write.c:679) 
[4566.209787][T22632] ? __pfx_vfs_write (fs/read_write.c:660) 
[4566.210010][T22632] ? __lock_release (kernel/locking/lockdep.c:5527) 
[4566.210214][T22632] ? 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) 
[4566.210446][T22632] ? __pfx___up_read (kernel/locking/rwsem.c:1337) 
[4566.210660][T22632] ksys_write (fs/read_write.c:731) 
[4566.210820][T22632] ? __pfx_ksys_write (fs/read_write.c:721) 
[4566.211034][T22632] ? do_user_addr_fault (./include/linux/rcupdate.h:882 ./include/linux/mm.h:742 arch/x86/mm/fault.c:1339) 
[4566.211252][T22632] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[4566.211509][T22632] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[ 4566.211764][T22632] RIP: 0033:0x7f7869006b77
[ 4566.211988][T22632] 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
[ 4566.212703][T22632] RSP: 002b:00007ffc067646e8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[ 4566.213021][T22632] RAX: ffffffffffffffda RBX: 0000000000000007 RCX: 00007f7869006b77
[ 4566.213327][T22632] RDX: 0000000000000007 RSI: 000055580be582f0 RDI: 0000000000000001
[ 4566.213637][T22632] RBP: 000055580be582f0 R08: 0000000000000006 R09: 0000000000000077
[ 4566.213954][T22632] R10: 0000000000000063 R11: 0000000000000246 R12: 0000000000000007


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