======================================
| [   15.847314][  T269] ip_gre: GRE over IPv4 tunneling driver
| [   15.927398][  T268] ------------[ cut here ]------------
| [ 15.927934][ T268] WARNING: CPU: 1 PID: 268 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   15.928575][  T268] Modules linked in: ip_gre gre
[   15.929516][  T268] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 15.929929][ T268] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 15.930269][ T268] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   15.931389][  T268] RSP: 0018:ffffc90000c67000 EFLAGS: 00010246
[   15.931801][  T268] RAX: 0000000000000000 RBX: ffff88800551c000 RCX: 0000000000000001
[   15.932286][  T268] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   15.932768][  T268] RBP: ffffc90000c670e8 R08: ffff88800551c218 R09: 0000000000000000
[   15.933257][  T268] R10: ffffc90000c67118 R11: ffff888007d115f0 R12: 1ffff9200018ce04
[   15.933740][  T268] R13: 000000000000ffe7 R14: ffffc90000c67118 R15: ffff88800551c218
[   15.934220][  T268] FS:  00007fb5e112b800(0000) GS:ffff8880c4619000(0000) knlGS:0000000000000000
[   15.934777][  T268] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.935187][  T268] CR2: 0000557ca9c294f8 CR3: 000000000918e001 CR4: 0000000000772ef0
[   15.935896][  T268] PKRU: 55555554
[   15.936137][  T268] Call Trace:
[   15.936376][  T268]  <TASK>
[ 15.936540][ T268] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 15.936953][ T268] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 15.937273][ T268] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 15.937616][ T268] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 15.937954][ T268] netif_set_mtu (net/core/dev.c:9652) 
[ 15.938277][ T268] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 15.938611][ T268] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 15.938858][ T268] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 15.939178][ T268] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 15.939502][ T268] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 15.939838][ T268] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 15.940236][ T268] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 15.940555][ T268] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 15.940881][ T268] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 15.941200][ T268] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 15.941512][ T268] ? __dev_get_by_name (net/core/dev.c:865) 
[ 15.941833][ T268] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 15.942152][ T268] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 15.942472][ T268] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 15.942786][ T268] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 15.943117][ T268] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 15.943444][ T268] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 15.943768][ T268] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 15.944101][ T268] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 15.944420][ T268] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 15.944745][ T268] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 15.945069][ T268] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 15.945387][ T268] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 15.945708][ T268] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.946037][ T268] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 15.946356][ T268] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 15.946674][ T268] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 15.947173][ T268] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 15.947489][ T268] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 15.947816][ T268] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 15.948147][ T268] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 15.948460][ T268] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.948784][ T268] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 15.949112][ T268] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 15.949436][ T268] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 15.949758][ T268] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 15.950080][ T268] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 15.950387][ T268] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 15.950793][ T268] ___sys_sendmsg (net/socket.c:2670) 
[ 15.951118][ T268] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 15.951422][ T268] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 15.951736][ T268] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 15.952057][ T268] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 15.952372][ T268] ? __handle_mm_fault (mm/memory.c:6212) 
[ 15.952687][ T268] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 15.953004][ T268] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 15.953329][ T268] __sys_sendmsg (net/socket.c:2700) 
[ 15.953646][ T268] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 15.953974][ T268] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 15.954293][ T268] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 15.954609][ T268] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.954927][ T268] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 15.955236][ T268] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   15.955864][  T268] RIP: 0033:0x7fb5e12f81e7
[ 15.956188][ T268] Code: Unable to access opcode bytes at 0x7fb5e12f81bd.

Code starting with the faulting instruction
===========================================
[   15.956593][  T268] RSP: 002b:00007ffcf8df8aa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   15.957293][  T268] RAX: ffffffffffffffda RBX: 00007ffcf8df91d0 RCX: 00007fb5e12f81e7
[   15.957762][  T268] RDX: 0000000000000000 RSI: 00007ffcf8df8b10 RDI: 0000000000000005
[   15.958227][  T268] RBP: 0000000000000004 R08: 00000000000000b4 R09: 0000000000000000
[   15.958927][  T268] R10: 00007fb5e11f06f8 R11: 0000000000000246 R12: 00007ffcf8df9200
[   15.959386][  T268] R13: 00000000686e802a R14: 0000000000499600 R15: 00007ffcf8df8c00
| [   17.439300][  T292] ------------[ cut here ]------------
| [ 17.439670][ T292] WARNING: CPU: 3 PID: 292 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   17.440560][  T292] Modules linked in: ip_gre gre
| [   17.441541][  T292] Tainted: [W]=WARN
[   17.441784][  T292] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 17.442194][ T292] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 17.442517][ T292] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   17.443659][  T292] RSP: 0018:ffffc900005a7000 EFLAGS: 00010246
[   17.444078][  T292] RAX: 0000000000000000 RBX: ffff88800aaf1000 RCX: 0000000000000001
[   17.444553][  T292] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   17.445038][  T292] RBP: ffffc900005a70e8 R08: ffff88800aaf1218 R09: 0000000000000000
[   17.445515][  T292] R10: ffffc900005a7118 R11: ffff888007d115f0 R12: 1ffff920000b4e04
[   17.446001][  T292] R13: 000000000000ffe7 R14: ffffc900005a7118 R15: ffff88800aaf1218
[   17.446479][  T292] FS:  00007ff3a7742800(0000) GS:ffff8880c4719000(0000) knlGS:0000000000000000
[   17.447042][  T292] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.447439][  T292] CR2: 0000000000436890 CR3: 000000000cb32002 CR4: 0000000000772ef0
[   17.447933][  T292] PKRU: 55555554
[   17.448177][  T292] Call Trace:
[   17.448416][  T292]  <TASK>
[ 17.448577][ T292] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 17.448991][ T292] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 17.449319][ T292] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 17.449637][ T292] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 17.449971][ T292] netif_set_mtu (net/core/dev.c:9652) 
[ 17.450287][ T292] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 17.450630][ T292] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 17.450878][ T292] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 17.451198][ T292] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 17.451529][ T292] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 17.451860][ T292] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 17.452255][ T292] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 17.452579][ T292] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 17.452928][ T292] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 17.453254][ T292] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 17.453573][ T292] ? __dev_get_by_name (net/core/dev.c:865) 
[ 17.453897][ T292] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 17.454214][ T292] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 17.454535][ T292] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 17.454855][ T292] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 17.455180][ T292] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 17.455517][ T292] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 17.455845][ T292] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 17.456180][ T292] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 17.456495][ T292] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 17.456812][ T292] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 17.457141][ T292] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 17.457458][ T292] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 17.457791][ T292] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.458136][ T292] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 17.458455][ T292] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 17.458781][ T292] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 17.459118][ T292] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 17.459441][ T292] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 17.459757][ T292] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 17.460084][ T292] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 17.460399][ T292] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.460724][ T292] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 17.461053][ T292] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 17.461372][ T292] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 17.461697][ T292] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 17.462022][ T292] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 17.462347][ T292] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 17.462755][ T292] ___sys_sendmsg (net/socket.c:2670) 
[ 17.463083][ T292] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 17.463406][ T292] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 17.463727][ T292] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 17.464050][ T292] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 17.464369][ T292] ? __handle_mm_fault (mm/memory.c:6212) 
[ 17.464683][ T292] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 17.465005][ T292] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 17.465345][ T292] __sys_sendmsg (net/socket.c:2700) 
[ 17.465662][ T292] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 17.465985][ T292] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 17.466315][ T292] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 17.466636][ T292] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.466965][ T292] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 17.467290][ T292] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   17.467692][  T292] RIP: 0033:0x7ff3a790f1e7
[ 17.468032][ T292] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   17.469171][  T292] RSP: 002b:00007ffdf6af45c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   17.469649][  T292] RAX: ffffffffffffffda RBX: 00007ffdf6af4cf0 RCX: 00007ff3a790f1e7
[   17.470135][  T292] RDX: 0000000000000000 RSI: 00007ffdf6af4630 RDI: 0000000000000005
[   17.470610][  T292] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[   17.471093][  T292] R10: 00007ff3a78076f8 R11: 0000000000000246 R12: 00007ffdf6af4d20
[   17.471567][  T292] R13: 00000000686e802b R14: 0000000000499600 R15: 00007ffdf6af4720
| [   18.891226][  T308] ------------[ cut here ]------------
| [ 18.891653][ T308] WARNING: CPU: 3 PID: 308 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   18.892294][  T308] Modules linked in: ip_gre gre
| [   18.893631][  T308] Tainted: [W]=WARN
[   18.893882][  T308] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.894291][ T308] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 18.894617][ T308] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   18.895766][  T308] RSP: 0018:ffffc90000be7000 EFLAGS: 00010246
[   18.896178][  T308] RAX: 0000000000000000 RBX: ffff8880054b4000 RCX: 0000000000000001
[   18.896653][  T308] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   18.897150][  T308] RBP: ffffc90000be70e8 R08: ffff8880054b4218 R09: 0000000000000000
[   18.897643][  T308] R10: ffffc90000be7118 R11: ffff8880054b4000 R12: 1ffff9200017ce04
[   18.898139][  T308] R13: 00000000000005c4 R14: ffffc90000be7118 R15: ffff8880054b4218
[   18.898617][  T308] FS:  00007f467e82b800(0000) GS:ffff8880c4719000(0000) knlGS:0000000000000000
[   18.899186][  T308] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.899585][  T308] CR2: 0000000000436890 CR3: 0000000004ee7005 CR4: 0000000000772ef0
[   18.900069][  T308] PKRU: 55555554
[   18.900308][  T308] Call Trace:
[   18.900547][  T308]  <TASK>
[ 18.900712][ T308] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 18.901061][ T308] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.901386][ T308] ? packet_notifier (net/packet/af_packet.c:4286) 
[ 18.901704][ T308] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 18.902031][ T308] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 18.902358][ T308] netif_set_mtu (net/core/dev.c:9652) 
[ 18.902674][ T308] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.903012][ T308] ? __pfx_register_netdevice (net/core/dev.c:11036) 
[ 18.903343][ T308] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.903583][ T308] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 18.903909][ T308] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 18.904233][ T308] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 18.904560][ T308] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 18.904984][ T308] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 18.905313][ T308] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 18.905633][ T308] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 18.905960][ T308] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 18.906276][ T308] ? __dev_get_by_name (net/core/dev.c:865) 
[ 18.906593][ T308] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 18.906933][ T308] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 18.907254][ T308] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.907579][ T308] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 18.907917][ T308] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 18.908244][ T308] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.908566][ T308] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.908923][ T308] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.909239][ T308] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.909557][ T308] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.909886][ T308] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.910203][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.910521][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.910855][ T308] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.911174][ T308] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.911493][ T308] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.911831][ T308] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.912154][ T308] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 18.912473][ T308] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 18.912793][ T308] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.913129][ T308] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.913455][ T308] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.913776][ T308] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.914103][ T308] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.914428][ T308] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.914750][ T308] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.915072][ T308] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.915479][ T308] ___sys_sendmsg (net/socket.c:2670) 
[ 18.915797][ T308] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.916119][ T308] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 18.916438][ T308] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 18.916758][ T308] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 18.917096][ T308] ? __handle_mm_fault (mm/memory.c:6212) 
[ 18.917418][ T308] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 18.917739][ T308] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 18.918086][ T308] __sys_sendmsg (net/socket.c:2700) 
[ 18.918404][ T308] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.918720][ T308] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 18.919056][ T308] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 18.919372][ T308] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.919692][ T308] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.920016][ T308] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.920408][  T308] RIP: 0033:0x7f467e9f81e7
[ 18.920732][ T308] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   18.921880][  T308] RSP: 002b:00007ffe19a6a5b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.922367][  T308] RAX: ffffffffffffffda RBX: 00007ffe19a6ace0 RCX: 00007f467e9f81e7
[   18.922850][  T308] RDX: 0000000000000000 RSI: 00007ffe19a6a620 RDI: 0000000000000005
[   18.923352][  T308] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[   18.923836][  T308] R10: 00007f467e8f06f8 R11: 0000000000000246 R12: 00007ffe19a6ad10
[   18.924314][  T308] R13: 00000000686e802d R14: 0000000000499600 R15: 00007ffe19a6a710
| [   20.359405][  T324] ------------[ cut here ]------------
| [ 20.359807][ T324] WARNING: CPU: 2 PID: 324 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   20.361663][  T324] Modules linked in: ip_gre gre
| [   20.362716][  T324] Tainted: [W]=WARN
[   20.362986][  T324] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.363407][ T324] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 20.363755][ T324] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   20.364949][  T324] RSP: 0018:ffffc900006a7000 EFLAGS: 00010246
[   20.365376][  T324] RAX: 0000000000000000 RBX: ffff888009684000 RCX: 0000000000000001
[   20.365887][  T324] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   20.366380][  T324] RBP: ffffc900006a70e8 R08: ffff888009684218 R09: 0000000000000000
[   20.366885][  T324] R10: ffffc900006a7118 R11: ffffffff9b49be78 R12: 1ffff920000d4e04
[   20.367388][  T324] R13: 000000000000ffe7 R14: ffffc900006a7118 R15: ffff888009684218
[   20.367915][  T324] FS:  00007f9d1e876800(0000) GS:ffff8880c4699000(0000) knlGS:0000000000000000
[   20.368497][  T324] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.368928][  T324] CR2: 00007fee2f322af0 CR3: 000000000c410005 CR4: 0000000000772ef0
[   20.369434][  T324] PKRU: 55555554
[   20.369696][  T324] Call Trace:
[   20.369966][  T324]  <TASK>
[ 20.370144][ T324] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 20.375215][ T324] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 20.375556][ T324] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.375902][ T324] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 20.376246][ T324] netif_set_mtu (net/core/dev.c:9652) 
[ 20.376584][ T324] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.376960][ T324] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.377227][ T324] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 20.377571][ T324] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 20.377934][ T324] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 20.378276][ T324] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 20.378691][ T324] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 20.383882][ T324] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 20.384221][ T324] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 20.384561][ T324] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 20.384906][ T324] ? __dev_get_by_name (net/core/dev.c:865) 
[ 20.385462][ T324] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.385795][ T324] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.386367][ T324] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.390379][ T324] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 20.390727][ T324] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 20.391088][ T324] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.391436][ T324] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.391784][ T324] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.392128][ T324] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.392470][ T324] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.392806][ T324] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.393156][ T324] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.393500][ T324] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.393854][ T324] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.394419][ T324] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.394756][ T324] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.395116][ T324] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.395673][ T324] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 20.396465][ T324] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 20.396808][ T324] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.397157][ T324] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.397497][ T324] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.398079][ T324] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.398633][ T324] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.398988][ T324] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.399322][ T324] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.399648][ T324] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.400306][ T324] ___sys_sendmsg (net/socket.c:2670) 
[ 20.400642][ T324] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.400986][ T324] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 20.401320][ T324] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 20.401885][ T324] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 20.402220][ T324] ? __handle_mm_fault (mm/memory.c:6212) 
[ 20.402551][ T324] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 20.403112][ T324] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 20.403461][ T324] __sys_sendmsg (net/socket.c:2700) 
[ 20.403795][ T324] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.404136][ T324] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 20.404477][ T324] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 20.405041][ T324] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.405375][ T324] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.405709][ T324] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.406348][  T324] RIP: 0033:0x7f9d1ea431e7
[ 20.406686][ T324] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   20.408085][  T324] RSP: 002b:00007ffe045ac3d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.408580][  T324] RAX: ffffffffffffffda RBX: 00007ffe045acb00 RCX: 00007f9d1ea431e7
[   20.409081][  T324] RDX: 0000000000000000 RSI: 00007ffe045ac440 RDI: 0000000000000005
[   20.409796][  T324] RBP: 0000000000000004 R08: 00000000000000b4 R09: 0000000000000000
[   20.410292][  T324] R10: 00007f9d1e93b6f8 R11: 0000000000000246 R12: 00007ffe045acb30
[   20.411027][  T324] R13: 00000000686e802e R14: 0000000000499600 R15: 00007ffe045ac530
| [   21.849080][  T340] ------------[ cut here ]------------
| [ 21.849497][ T340] WARNING: CPU: 0 PID: 340 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   21.850122][  T340] Modules linked in: ip_gre gre
| [   21.851143][  T340] Tainted: [W]=WARN
[   21.851403][  T340] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 21.851793][ T340] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 21.852125][ T340] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   21.853248][  T340] RSP: 0018:ffffc900007d7000 EFLAGS: 00010246
[   21.853645][  T340] RAX: 0000000000000000 RBX: ffff888005419000 RCX: 0000000000000001
[   21.854119][  T340] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   21.854583][  T340] RBP: ffffc900007d70e8 R08: ffff888005419218 R09: 0000000000000000
[   21.855062][  T340] R10: ffffc900007d7118 R11: ffffffff9f58d1e0 R12: 1ffff920000fae04
[   21.855528][  T340] R13: 000000000000ffe7 R14: ffffc900007d7118 R15: ffff888005419218
[   21.856004][  T340] FS:  00007f1d31c0b800(0000) GS:ffff8880c4599000(0000) knlGS:0000000000000000
[   21.856547][  T340] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.856945][  T340] CR2: 0000000000436890 CR3: 000000000c02c004 CR4: 0000000000772ef0
[   21.857415][  T340] PKRU: 55555554
[   21.857665][  T340] Call Trace:
[   21.857913][  T340]  <TASK>
[ 21.858073][ T340] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 21.858464][ T340] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 21.858780][ T340] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 21.859102][ T340] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 21.859423][ T340] netif_set_mtu (net/core/dev.c:9652) 
[ 21.859736][ T340] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 21.860069][ T340] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 21.860309][ T340] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 21.860622][ T340] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 21.860951][ T340] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 21.861268][ T340] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 21.861654][ T340] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 21.861989][ T340] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 21.862299][ T340] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 21.862611][ T340] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 21.862928][ T340] ? __dev_get_by_name (net/core/dev.c:865) 
[ 21.863240][ T340] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 21.863546][ T340] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 21.863869][ T340] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 21.864178][ T340] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 21.864498][ T340] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 21.864816][ T340] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 21.865149][ T340] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.865469][ T340] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 21.865773][ T340] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.866110][ T340] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.866416][ T340] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 21.866726][ T340] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.867056][ T340] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.867372][ T340] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 21.867695][ T340] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.868013][ T340] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 21.868333][ T340] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 21.868639][ T340] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 21.868962][ T340] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 21.869279][ T340] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 21.869584][ T340] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.869907][ T340] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 21.870222][ T340] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 21.870530][ T340] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 21.870861][ T340] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 21.871173][ T340] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 21.871484][ T340] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 21.871888][ T340] ___sys_sendmsg (net/socket.c:2670) 
[ 21.872197][ T340] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 21.872502][ T340] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 21.872813][ T340] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 21.873135][ T340] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 21.873450][ T340] ? __handle_mm_fault (mm/memory.c:6212) 
[ 21.873758][ T340] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 21.874074][ T340] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 21.874405][ T340] __sys_sendmsg (net/socket.c:2700) 
[ 21.874713][ T340] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 21.875033][ T340] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 21.875352][ T340] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 21.875663][ T340] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.875986][ T340] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 21.876296][ T340] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   21.876677][  T340] RIP: 0033:0x7f1d31dd81e7
[ 21.877005][ T340] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   21.878127][  T340] RSP: 002b:00007ffdd5b26838 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   21.878593][  T340] RAX: ffffffffffffffda RBX: 00007ffdd5b26f60 RCX: 00007f1d31dd81e7
[   21.879070][  T340] RDX: 0000000000000000 RSI: 00007ffdd5b268a0 RDI: 0000000000000005
[   21.879532][  T340] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[   21.880004][  T340] R10: 00007f1d31cd06f8 R11: 0000000000000246 R12: 00007ffdd5b26f90
[   21.880470][  T340] R13: 00000000686e8030 R14: 0000000000499600 R15: 00007ffdd5b26990
| [   23.279856][  T356] ------------[ cut here ]------------
| [ 23.280206][ T356] WARNING: CPU: 0 PID: 356 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   23.280809][  T356] Modules linked in: ip_gre gre
| [   23.281779][  T356] Tainted: [W]=WARN
[   23.282474][  T356] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 23.282870][ T356] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 23.283189][ T356] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   23.284297][  T356] RSP: 0018:ffffc900008b7000 EFLAGS: 00010246
[   23.284688][  T356] RAX: 0000000000000000 RBX: ffff88800dba9000 RCX: 0000000000000001
[   23.285163][  T356] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   23.285627][  T356] RBP: ffffc900008b70e8 R08: ffff88800dba9218 R09: 0000000000000000
[   23.286101][  T356] R10: ffffc900008b7118 R11: ffff88800dba9000 R12: 1ffff92000116e04
[   23.286566][  T356] R13: 00000000000005c4 R14: ffffc900008b7118 R15: ffff88800dba9218
[   23.287040][  T356] FS:  00007fd48029f800(0000) GS:ffff8880c4599000(0000) knlGS:0000000000000000
[   23.287585][  T356] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   23.287988][  T356] CR2: 0000000000436890 CR3: 000000000cadc001 CR4: 0000000000772ef0
[   23.288453][  T356] PKRU: 55555554
[   23.288686][  T356] Call Trace:
[   23.288927][  T356]  <TASK>
[ 23.289085][ T356] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 23.289405][ T356] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 23.289711][ T356] ? packet_notifier (net/packet/af_packet.c:4286) 
[ 23.290028][ T356] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 23.290335][ T356] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 23.290650][ T356] netif_set_mtu (net/core/dev.c:9652) 
[ 23.290967][ T356] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 23.291282][ T356] ? __pfx_register_netdevice (net/core/dev.c:11036) 
[ 23.291599][ T356] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 23.291839][ T356] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 23.292152][ T356] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 23.292467][ T356] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 23.292779][ T356] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 23.293188][ T356] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 23.293511][ T356] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 23.293830][ T356] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 23.294143][ T356] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 23.294446][ T356] ? __dev_get_by_name (net/core/dev.c:865) 
[ 23.294755][ T356] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 23.295072][ T356] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 23.295385][ T356] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 23.295690][ T356] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 23.296015][ T356] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 23.296334][ T356] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 23.296647][ T356] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.296978][ T356] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 23.297285][ T356] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 23.297599][ T356] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 23.297916][ T356] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 23.298229][ T356] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.298547][ T356] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.298938][ T356] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 23.299474][ T356] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 23.300008][ T356] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 23.300334][ T356] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 23.300639][ T356] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 23.300970][ T356] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 23.301282][ T356] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 23.301588][ T356] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 23.301910][ T356] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 23.302221][ T356] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 23.302527][ T356] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 23.302852][ T356] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 23.303161][ T356] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 23.303474][ T356] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 23.303874][ T356] ___sys_sendmsg (net/socket.c:2670) 
[ 23.304187][ T356] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 23.304495][ T356] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 23.304805][ T356] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 23.305123][ T356] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 23.305440][ T356] ? __handle_mm_fault (mm/memory.c:6212) 
[ 23.305745][ T356] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 23.306057][ T356] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 23.306382][ T356] __sys_sendmsg (net/socket.c:2700) 
[ 23.306690][ T356] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 23.307004][ T356] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 23.307318][ T356] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 23.307639][ T356] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 23.307960][ T356] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 23.308269][ T356] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   23.308650][  T356] RIP: 0033:0x7fd48046c1e7
[ 23.308978][ T356] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   23.310089][  T356] RSP: 002b:00007ffd4562b3f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   23.310552][  T356] RAX: ffffffffffffffda RBX: 00007ffd4562bb20 RCX: 00007fd48046c1e7
[   23.311022][  T356] RDX: 0000000000000000 RSI: 00007ffd4562b460 RDI: 0000000000000005
[   23.311480][  T356] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[   23.311958][  T356] R10: 00007fd4803646f8 R11: 0000000000000246 R12: 00007ffd4562bb50
[   23.312418][  T356] R13: 00000000686e8031 R14: 0000000000499600 R15: 00007ffd4562b550
| [   24.723941][  T372] ------------[ cut here ]------------
| [ 24.724348][ T372] WARNING: CPU: 0 PID: 372 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   24.724970][  T372] Modules linked in: ip_gre gre
| [   24.725929][  T372] Tainted: [W]=WARN
[   24.726163][  T372] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.726546][ T372] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 24.726870][ T372] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   24.727989][  T372] RSP: 0018:ffffc90000967000 EFLAGS: 00010246
[   24.728379][  T372] RAX: 0000000000000000 RBX: ffff888008c59000 RCX: 0000000000000001
[   24.728853][  T372] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   24.729325][  T372] RBP: ffffc900009670e8 R08: ffff888008c59218 R09: 0000000000000000
[   24.729783][  T372] R10: ffffc90000967118 R11: ffffffff9f58d1e0 R12: 1ffff9200012ce04
[   24.730250][  T372] R13: 000000000000ffe7 R14: ffffc90000967118 R15: ffff888008c59218
[   24.730711][  T372] FS:  00007f2f0270f800(0000) GS:ffff8880c4599000(0000) knlGS:0000000000000000
[   24.731262][  T372] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.731649][  T372] CR2: 0000000000436890 CR3: 000000000beb6006 CR4: 0000000000772ef0
[   24.732122][  T372] PKRU: 55555554
[   24.732353][  T372] Call Trace:
[   24.732583][  T372]  <TASK>
[ 24.732740][ T372] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 24.733132][ T372] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 24.733441][ T372] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 24.733753][ T372] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 24.734082][ T372] netif_set_mtu (net/core/dev.c:9652) 
[ 24.734389][ T372] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 24.734713][ T372] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 24.734957][ T372] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 24.735270][ T372] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 24.735582][ T372] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 24.735906][ T372] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 24.736290][ T372] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 24.736605][ T372] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 24.736926][ T372] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 24.737238][ T372] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 24.737542][ T372] ? __dev_get_by_name (net/core/dev.c:865) 
[ 24.737870][ T372] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 24.738176][ T372] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 24.738488][ T372] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 24.738793][ T372] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 24.739118][ T372] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 24.739438][ T372] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 24.739752][ T372] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.740081][ T372] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 24.740391][ T372] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.740701][ T372] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.741018][ T372] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 24.741333][ T372] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.741644][ T372] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.741966][ T372] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 24.742277][ T372] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.742584][ T372] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 24.742929][ T372] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 24.743237][ T372] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 24.743543][ T372] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 24.743863][ T372] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 24.744170][ T372] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.744484][ T372] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 24.744796][ T372] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 24.745118][ T372] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 24.745434][ T372] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 24.745745][ T372] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 24.746059][ T372] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 24.746455][ T372] ___sys_sendmsg (net/socket.c:2670) 
[ 24.746891][ T372] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 24.747421][ T372] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 24.747999][ T372] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 24.748345][ T372] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 24.748657][ T372] ? __handle_mm_fault (mm/memory.c:6212) 
[ 24.748974][ T372] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 24.749281][ T372] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 24.749608][ T372] __sys_sendmsg (net/socket.c:2700) 
[ 24.749932][ T372] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 24.750240][ T372] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 24.750555][ T372] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 24.750872][ T372] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.751184][ T372] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 24.751491][ T372] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.751881][  T372] RIP: 0033:0x7f2f028dc1e7
[ 24.752199][ T372] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   24.753298][  T372] RSP: 002b:00007fff5e0b65b8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.753766][  T372] RAX: ffffffffffffffda RBX: 00007fff5e0b6ce0 RCX: 00007f2f028dc1e7
[   24.754234][  T372] RDX: 0000000000000000 RSI: 00007fff5e0b6620 RDI: 0000000000000005
[   24.754693][  T372] RBP: 0000000000000004 R08: 00000000000000b4 R09: 0000000000000000
[   24.755159][  T372] R10: 00007f2f027d46f8 R11: 0000000000000246 R12: 00007fff5e0b6d10
[   24.755621][  T372] R13: 00000000686e8033 R14: 0000000000499600 R15: 00007fff5e0b6710
| [   26.338985][  T389] ------------[ cut here ]------------
| [ 26.339351][ T389] WARNING: CPU: 3 PID: 389 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   26.339986][  T389] Modules linked in: ip_gre gre
| [   26.340969][  T389] Tainted: [W]=WARN
[   26.341210][  T389] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 26.341605][ T389] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 26.341947][ T389] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   26.343096][  T389] RSP: 0018:ffffc90000ad7000 EFLAGS: 00010246
[   26.343501][  T389] RAX: 0000000000000000 RBX: ffff88800c2dc000 RCX: 0000000000000001
[   26.343986][  T389] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   26.344463][  T389] RBP: ffffc90000ad70e8 R08: ffff88800c2dc218 R09: 0000000000000000
[   26.344948][  T389] R10: ffffc90000ad7118 R11: ffffffff9f58d1e0 R12: 1ffff9200015ae04
[   26.345430][  T389] R13: 000000000000ffe7 R14: ffffc90000ad7118 R15: ffff88800c2dc218
[   26.345922][  T389] FS:  00007f368d19f800(0000) GS:ffff8880c4719000(0000) knlGS:0000000000000000
[   26.346476][  T389] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.346893][  T389] CR2: 0000000000436890 CR3: 000000000ffbe002 CR4: 0000000000772ef0
[   26.347382][  T389] PKRU: 55555554
[   26.347629][  T389] Call Trace:
[   26.347875][  T389]  <TASK>
[ 26.348039][ T389] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 26.348439][ T389] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 26.348770][ T389] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 26.349094][ T389] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 26.349430][ T389] netif_set_mtu (net/core/dev.c:9652) 
[ 26.349754][ T389] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 26.350100][ T389] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 26.350343][ T389] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 26.350668][ T389] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 26.351000][ T389] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 26.351321][ T389] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 26.351714][ T389] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 26.352050][ T389] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 26.352369][ T389] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 26.352693][ T389] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 26.353017][ T389] ? __dev_get_by_name (net/core/dev.c:865) 
[ 26.353337][ T389] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 26.353653][ T389] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 26.353986][ T389] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 26.354298][ T389] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 26.354622][ T389] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 26.354966][ T389] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 26.355293][ T389] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.355621][ T389] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 26.355945][ T389] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.356264][ T389] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.356580][ T389] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 26.356924][ T389] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.357245][ T389] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.357573][ T389] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 26.357904][ T389] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.358223][ T389] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 26.358552][ T389] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 26.358876][ T389] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 26.359202][ T389] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 26.359523][ T389] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 26.359853][ T389] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.360177][ T389] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 26.360507][ T389] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 26.360836][ T389] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 26.361164][ T389] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 26.361483][ T389] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 26.361801][ T389] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 26.362216][ T389] ___sys_sendmsg (net/socket.c:2670) 
[ 26.362537][ T389] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 26.362861][ T389] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 26.363183][ T389] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 26.363497][ T389] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 26.363845][ T389] ? __handle_mm_fault (mm/memory.c:6212) 
[ 26.364162][ T389] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 26.364479][ T389] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 26.364815][ T389] __sys_sendmsg (net/socket.c:2700) 
[ 26.365143][ T389] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 26.365457][ T389] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 26.365779][ T389] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 26.366107][ T389] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.366427][ T389] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 26.366746][ T389] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   26.367148][  T389] RIP: 0033:0x7f368d36c1e7
[ 26.367474][ T389] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   26.368618][  T389] RSP: 002b:00007ffea2f0ebb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   26.369116][  T389] RAX: ffffffffffffffda RBX: 00007ffea2f0f2e0 RCX: 00007f368d36c1e7
[   26.369592][  T389] RDX: 0000000000000000 RSI: 00007ffea2f0ec20 RDI: 0000000000000005
[   26.370073][  T389] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[   26.370546][  T389] R10: 00007f368d2646f8 R11: 0000000000000246 R12: 00007ffea2f0f310
[   26.371037][  T389] R13: 00000000686e8034 R14: 0000000000499600 R15: 00007ffea2f0ed10
| [   27.977037][  T406] ------------[ cut here ]------------
| [ 27.977385][ T406] WARNING: CPU: 0 PID: 406 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   27.978022][  T406] Modules linked in: ip_gre gre
| [   27.978988][  T406] Tainted: [W]=WARN
[   27.979227][  T406] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 27.979611][ T406] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 27.979939][ T406] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   27.981054][  T406] RSP: 0018:ffffc90000bc7000 EFLAGS: 00010246
[   27.981445][  T406] RAX: 0000000000000000 RBX: ffff88800c039000 RCX: 0000000000000001
[   27.981920][  T406] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   27.982387][  T406] RBP: ffffc90000bc70e8 R08: ffff88800c039218 R09: 0000000000000000
[   27.982860][  T406] R10: ffffc90000bc7118 R11: ffff88800c039000 R12: 1ffff92000178e04
[   27.983329][  T406] R13: 00000000000005c4 R14: ffffc90000bc7118 R15: ffff88800c039218
[   27.983800][  T406] FS:  00007f9789fa5800(0000) GS:ffff8880c4599000(0000) knlGS:0000000000000000
[   27.984353][  T406] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.984744][  T406] CR2: 0000000000436890 CR3: 0000000002765003 CR4: 0000000000772ef0
[   27.985217][  T406] PKRU: 55555554
[   27.985452][  T406] Call Trace:
[   27.985689][  T406]  <TASK>
[ 27.985856][ T406] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 27.986172][ T406] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 27.986478][ T406] ? packet_notifier (net/packet/af_packet.c:4286) 
[ 27.986789][ T406] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 27.987113][ T406] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 27.987426][ T406] netif_set_mtu (net/core/dev.c:9652) 
[ 27.987746][ T406] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 27.988077][ T406] ? __pfx_register_netdevice (net/core/dev.c:11036) 
[ 27.988391][ T406] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 27.988626][ T406] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 27.988946][ T406] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 27.989266][ T406] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 27.989581][ T406] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 27.989975][ T406] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 27.990298][ T406] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 27.990609][ T406] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 27.990931][ T406] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 27.991239][ T406] ? __dev_get_by_name (net/core/dev.c:865) 
[ 27.991548][ T406] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 27.991865][ T406] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 27.992179][ T406] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 27.992489][ T406] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 27.992805][ T406] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 27.993135][ T406] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 27.993449][ T406] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.993770][ T406] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 27.994082][ T406] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 27.994394][ T406] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.994701][ T406] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 27.995040][ T406] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.995351][ T406] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.995665][ T406] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 27.995983][ T406] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.996291][ T406] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 27.996610][ T406] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 27.996925][ T406] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 27.997241][ T406] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 27.997549][ T406] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 27.997881][ T406] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.998196][ T406] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 27.998511][ T406] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 27.998833][ T406] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 27.999153][ T406] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 27.999471][ T406] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 27.999779][ T406] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 28.000189][ T406] ___sys_sendmsg (net/socket.c:2670) 
[ 28.000498][ T406] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 28.000807][ T406] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 28.001132][ T406] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 28.001437][ T406] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 28.001753][ T406] ? __handle_mm_fault (mm/memory.c:6212) 
[ 28.002072][ T406] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 28.002378][ T406] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 28.002705][ T406] __sys_sendmsg (net/socket.c:2700) 
[ 28.003133][ T406] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 28.003666][ T406] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 28.004230][ T406] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 28.004672][ T406] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 28.005002][ T406] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 28.005315][ T406] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   28.005696][  T406] RIP: 0033:0x7f978a1721e7
[ 28.006020][ T406] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   28.007134][  T406] RSP: 002b:00007ffc1e2a7b38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   28.007607][  T406] RAX: ffffffffffffffda RBX: 00007ffc1e2a8260 RCX: 00007f978a1721e7
[   28.008082][  T406] RDX: 0000000000000000 RSI: 00007ffc1e2a7ba0 RDI: 0000000000000005
[   28.008545][  T406] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[   28.009024][  T406] R10: 00007f978a06a6f8 R11: 0000000000000246 R12: 00007ffc1e2a8290
[   28.009488][  T406] R13: 00000000686e8036 R14: 0000000000499600 R15: 00007ffc1e2a7c90
| [   29.620610][  T423] ------------[ cut here ]------------
| [ 29.621409][ T423] WARNING: CPU: 1 PID: 423 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   29.622014][  T423] Modules linked in: ip_gre gre
| [   29.622933][  T423] Tainted: [W]=WARN
[   29.623160][  T423] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 29.623538][ T423] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 29.623861][ T423] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   29.624934][  T423] RSP: 0018:ffffc90000db7000 EFLAGS: 00010246
[   29.625351][  T423] RAX: 0000000000000000 RBX: ffff88800db7c000 RCX: 0000000000000001
[   29.625809][  T423] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   29.626299][  T423] RBP: ffffc90000db70e8 R08: ffff88800db7c218 R09: 0000000000000000
[   29.626755][  T423] R10: ffffc90000db7118 R11: ffffffff9f58d1e0 R12: 1ffff920001b6e04
[   29.627237][  T423] R13: 000000000000ffe7 R14: ffffc90000db7118 R15: ffff88800db7c218
[   29.627707][  T423] FS:  00007f02f7ea6800(0000) GS:ffff8880c4619000(0000) knlGS:0000000000000000
[   29.628251][  T423] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   29.628638][  T423] CR2: 0000000000436890 CR3: 000000000ea85003 CR4: 0000000000772ef0
[   29.629133][  T423] PKRU: 55555554
[   29.629361][  T423] Call Trace:
[   29.629584][  T423]  <TASK>
[ 29.629737][ T423] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 29.630262][ T423] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 29.630567][ T423] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 29.630975][ T423] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 29.631295][ T423] netif_set_mtu (net/core/dev.c:9652) 
[ 29.631606][ T423] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 29.631938][ T423] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 29.632172][ T423] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 29.632478][ T423] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 29.632791][ T423] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 29.633125][ T423] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 29.633511][ T423] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 29.633845][ T423] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 29.634155][ T423] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 29.634466][ T423] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 29.634778][ T423] ? __dev_get_by_name (net/core/dev.c:865) 
[ 29.635088][ T423] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 29.635420][ T423] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 29.635737][ T423] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 29.636059][ T423] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 29.636382][ T423] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 29.636693][ T423] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 29.637022][ T423] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 29.637360][ T423] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 29.637671][ T423] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 29.638001][ T423] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 29.638317][ T423] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 29.638629][ T423] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 29.638979][ T423] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.639309][ T423] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 29.639619][ T423] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 29.639935][ T423] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 29.640253][ T423] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 29.640568][ T423] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 29.640893][ T423] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 29.641223][ T423] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 29.641528][ T423] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 29.641853][ T423] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 29.642173][ T423] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 29.642472][ T423] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 29.642778][ T423] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 29.643094][ T423] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 29.643418][ T423] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 29.643812][ T423] ___sys_sendmsg (net/socket.c:2670) 
[ 29.644130][ T423] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 29.644446][ T423] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 29.644750][ T423] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 29.645074][ T423] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 29.645405][ T423] ? __handle_mm_fault (mm/memory.c:6212) 
[ 29.645711][ T423] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 29.646026][ T423] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 29.646363][ T423] __sys_sendmsg (net/socket.c:2700) 
[ 29.646662][ T423] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 29.646971][ T423] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 29.647308][ T423] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 29.647621][ T423] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 29.647941][ T423] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 29.648250][ T423] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   29.648629][  T423] RIP: 0033:0x7f02f80731e7
[ 29.648971][ T423] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   29.650095][  T423] RSP: 002b:00007fffa883c428 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   29.650560][  T423] RAX: ffffffffffffffda RBX: 00007fffa883cb50 RCX: 00007f02f80731e7
[   29.651021][  T423] RDX: 0000000000000000 RSI: 00007fffa883c490 RDI: 0000000000000005
[   29.651509][  T423] RBP: 0000000000000004 R08: 00000000000000b4 R09: 0000000000000000
[   29.651977][  T423] R10: 00007f02f7f6b6f8 R11: 0000000000000246 R12: 00007fffa883cb80
[   29.652443][  T423] R13: 00000000686e8038 R14: 0000000000499600 R15: 00007fffa883c580
| [   31.049833][  T439] ------------[ cut here ]------------
| [ 31.050217][ T439] WARNING: CPU: 3 PID: 439 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   31.051082][  T439] Modules linked in: ip_gre gre
| [   31.052070][  T439] Tainted: [W]=WARN
[   31.052323][  T439] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 31.052726][ T439] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 31.053066][ T439] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   31.054247][  T439] RSP: 0018:ffffc90000e77000 EFLAGS: 00010246
[   31.054656][  T439] RAX: 0000000000000000 RBX: ffff888005711000 RCX: 0000000000000001
[   31.055157][  T439] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   31.055642][  T439] RBP: ffffc90000e770e8 R08: ffff888005711218 R09: 0000000000000000
[   31.056133][  T439] R10: ffffc90000e77118 R11: ffffffff9f58d1e0 R12: 1ffff920001cee04
[   31.056616][  T439] R13: 000000000000ffe7 R14: ffffc90000e77118 R15: ffff888005711218
[   31.057104][  T439] FS:  00007f34528c9800(0000) GS:ffff8880c4719000(0000) knlGS:0000000000000000
[   31.057675][  T439] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   31.058087][  T439] CR2: 0000000000436890 CR3: 0000000009f13004 CR4: 0000000000772ef0
[   31.058571][  T439] PKRU: 55555554
[   31.058813][  T439] Call Trace:
[   31.059062][  T439]  <TASK>
[ 31.059226][ T439] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 31.059637][ T439] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 31.059984][ T439] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 31.060307][ T439] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 31.060638][ T439] netif_set_mtu (net/core/dev.c:9652) 
[ 31.060967][ T439] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 31.061300][ T439] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 31.061560][ T439] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 31.061901][ T439] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 31.062236][ T439] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 31.062561][ T439] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 31.062971][ T439] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 31.063304][ T439] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 31.063633][ T439] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 31.063966][ T439] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 31.064291][ T439] ? __dev_get_by_name (net/core/dev.c:865) 
[ 31.064615][ T439] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 31.064942][ T439] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 31.065270][ T439] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 31.065589][ T439] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 31.065928][ T439] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 31.066260][ T439] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 31.066588][ T439] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.066931][ T439] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 31.067260][ T439] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 31.067593][ T439] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 31.067923][ T439] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 31.068247][ T439] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.068574][ T439] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.068914][ T439] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 31.069240][ T439] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 31.069567][ T439] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 31.069931][ T439] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 31.070252][ T439] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 31.070577][ T439] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 31.070910][ T439] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 31.071230][ T439] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 31.071559][ T439] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 31.071892][ T439] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 31.072214][ T439] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 31.072546][ T439] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 31.072880][ T439] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 31.073202][ T439] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 31.073619][ T439] ___sys_sendmsg (net/socket.c:2670) 
[ 31.073958][ T439] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 31.074283][ T439] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 31.074608][ T439] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 31.074933][ T439] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 31.075256][ T439] ? __handle_mm_fault (mm/memory.c:6212) 
[ 31.075575][ T439] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 31.075899][ T439] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 31.076245][ T439] __sys_sendmsg (net/socket.c:2700) 
[ 31.076569][ T439] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 31.076898][ T439] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 31.077229][ T439] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 31.077551][ T439] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 31.077896][ T439] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 31.078223][ T439] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   31.078631][  T439] RIP: 0033:0x7f3452a961e7
[ 31.078970][ T439] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   31.080128][  T439] RSP: 002b:00007ffeac163688 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   31.080611][  T439] RAX: ffffffffffffffda RBX: 00007ffeac163db0 RCX: 00007f3452a961e7
[   31.081105][  T439] RDX: 0000000000000000 RSI: 00007ffeac1636f0 RDI: 0000000000000005
[   31.081588][  T439] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[   31.082078][  T439] R10: 00007f345298e6f8 R11: 0000000000000246 R12: 00007ffeac163de0
[   31.082562][  T439] R13: 00000000686e8039 R14: 0000000000499600 R15: 00007ffeac1637e0
| [   32.513532][  T455] ------------[ cut here ]------------
| [ 32.514360][ T455] WARNING: CPU: 2 PID: 455 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   32.515057][  T455] Modules linked in: ip_gre gre
| [   32.516083][  T455] Tainted: [W]=WARN
[   32.516341][  T455] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 32.516769][ T455] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 32.517144][ T455] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   32.518354][  T455] RSP: 0018:ffffc90000f27000 EFLAGS: 00010246
[   32.518780][  T455] RAX: 0000000000000000 RBX: ffff88800f129000 RCX: 0000000000000001
[   32.519282][  T455] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   32.519773][  T455] RBP: ffffc90000f270e8 R08: ffff88800f129218 R09: 0000000000000000
[   32.520279][  T455] R10: ffffc90000f27118 R11: ffff88800f129000 R12: 1ffff920001e4e04
[   32.520771][  T455] R13: 00000000000005c4 R14: ffffc90000f27118 R15: ffff88800f129218
[   32.521286][  T455] FS:  00007f4d3e217800(0000) GS:ffff8880c4699000(0000) knlGS:0000000000000000
[   32.521873][  T455] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.522300][  T455] CR2: 0000000000436890 CR3: 000000000513b002 CR4: 0000000000772ef0
[   32.522799][  T455] PKRU: 55555554
[   32.523066][  T455] Call Trace:
[   32.523320][  T455]  <TASK>
[ 32.523498][ T455] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 32.523846][ T455] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 32.524187][ T455] ? packet_notifier (net/packet/af_packet.c:4286) 
[ 32.524526][ T455] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 32.524885][ T455] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 32.525233][ T455] netif_set_mtu (net/core/dev.c:9652) 
[ 32.525571][ T455] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 32.525929][ T455] ? __pfx_register_netdevice (net/core/dev.c:11036) 
[ 32.526269][ T455] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 32.526526][ T455] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 32.526877][ T455] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 32.527220][ T455] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 32.527560][ T455] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 32.527994][ T455] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 32.528338][ T455] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 32.528677][ T455] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 32.529037][ T455] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 32.529382][ T455] ? __dev_get_by_name (net/core/dev.c:865) 
[ 32.529719][ T455] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 32.530064][ T455] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 32.530398][ T455] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 32.530730][ T455] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 32.531079][ T455] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 32.531426][ T455] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 32.531765][ T455] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 32.532125][ T455] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 32.532456][ T455] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 32.532792][ T455] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 32.533146][ T455] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 32.533495][ T455] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 32.533841][ T455] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 32.534183][ T455] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 32.534523][ T455] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 32.534870][ T455] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 32.535213][ T455] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 32.535545][ T455] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 32.536000][ T455] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 32.536343][ T455] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 32.536674][ T455] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 32.537042][ T455] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 32.537387][ T455] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 32.537736][ T455] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 32.538084][ T455] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 32.538421][ T455] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 32.538748][ T455] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 32.539177][ T455] ___sys_sendmsg (net/socket.c:2670) 
[ 32.539515][ T455] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 32.539857][ T455] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 32.540189][ T455] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 32.540519][ T455] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 32.540871][ T455] ? __handle_mm_fault (mm/memory.c:6212) 
[ 32.541206][ T455] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 32.541532][ T455] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 32.541898][ T455] __sys_sendmsg (net/socket.c:2700) 
[ 32.542232][ T455] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 32.542562][ T455] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 32.542907][ T455] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 32.543239][ T455] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 32.543574][ T455] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 32.543914][ T455] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   32.544325][  T455] RIP: 0033:0x7f4d3e3e41e7
[ 32.544665][ T455] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   32.545836][  T455] RSP: 002b:00007ffc404c7ad8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   32.546340][  T455] RAX: ffffffffffffffda RBX: 00007ffc404c8200 RCX: 00007f4d3e3e41e7
[   32.546842][  T455] RDX: 0000000000000000 RSI: 00007ffc404c7b40 RDI: 0000000000000005
[   32.547332][  T455] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[   32.547835][  T455] R10: 00007f4d3e2dc6f8 R11: 0000000000000246 R12: 00007ffc404c8230
[   32.548322][  T455] R13: 00000000686e803b R14: 0000000000499600 R15: 00007ffc404c7c30
| [   33.981963][  T471] ------------[ cut here ]------------
| [ 33.982378][ T471] WARNING: CPU: 0 PID: 471 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   33.982996][  T471] Modules linked in: ip_gre gre
| [   33.983945][  T471] Tainted: [W]=WARN
[   33.984180][  T471] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 33.984570][ T471] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 33.984906][ T471] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   33.986072][  T471] RSP: 0018:ffffc90000ff7000 EFLAGS: 00010246
[   33.986479][  T471] RAX: 0000000000000000 RBX: ffff888007d7c000 RCX: 0000000000000001
[   33.986942][  T471] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   33.987404][  T471] RBP: ffffc90000ff70e8 R08: ffff888007d7c218 R09: 0000000000000000
[   33.987900][  T471] R10: ffffc90000ff7118 R11: ffffffff9f58d1e0 R12: 1ffff920001fee04
[   33.988370][  T471] R13: 000000000000ffd9 R14: ffffc90000ff7118 R15: ffff888007d7c218
[   33.988870][  T471] FS:  00007f0966313800(0000) GS:ffff8880c4599000(0000) knlGS:0000000000000000
[   33.989416][  T471] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   33.989803][  T471] CR2: 0000000000436890 CR3: 0000000004f0b004 CR4: 0000000000772ef0
[   33.990322][  T471] PKRU: 55555554
[   33.990556][  T471] Call Trace:
[   33.990786][  T471]  <TASK>
[ 33.990952][ T471] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 33.991337][ T471] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 33.991650][ T471] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 33.991967][ T471] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 33.992280][ T471] netif_set_mtu (net/core/dev.c:9652) 
[ 33.992586][ T471] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 33.992925][ T471] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 33.993241][ T471] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 33.993474][ T471] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 33.993803][ T471] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 33.994136][ T471] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 33.994457][ T471] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 33.994860][ T471] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 33.995189][ T471] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 33.995496][ T471] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 33.995807][ T471] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 33.996136][ T471] ? __dev_get_by_name (net/core/dev.c:865) 
[ 33.996445][ T471] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 33.996754][ T471] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 33.997089][ T471] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 33.997402][ T471] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 33.997741][ T471] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 33.998082][ T471] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 33.998401][ T471] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 33.998728][ T471] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 33.999051][ T471] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 33.999357][ T471] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 33.999660][ T471] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 33.999974][ T471] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 34.000313][ T471] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 34.000634][ T471] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 34.000969][ T471] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 34.001294][ T471] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 34.001623][ T471] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 34.002157][ T471] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 34.002698][ T471] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 34.003126][ T471] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 34.003440][ T471] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 34.003760][ T471] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 34.004097][ T471] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 34.004405][ T471] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 34.004717][ T471] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 34.005051][ T471] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 34.005359][ T471] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 34.005779][ T471] ___sys_sendmsg (net/socket.c:2670) 
[ 34.006103][ T471] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 34.006416][ T471] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 34.006731][ T471] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 34.007056][ T471] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 34.007368][ T471] ? __handle_mm_fault (mm/memory.c:6212) 
[ 34.007700][ T471] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 34.008021][ T471] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 34.008357][ T471] __sys_sendmsg (net/socket.c:2700) 
[ 34.008669][ T471] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 34.009009][ T471] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 34.009334][ T471] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 34.009638][ T471] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 34.009959][ T471] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 34.010268][ T471] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   34.010646][  T471] RIP: 0033:0x7f09664e01e7
[ 34.010970][ T471] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   34.012072][  T471] RSP: 002b:00007ffeeb474988 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   34.012534][  T471] RAX: ffffffffffffffda RBX: 00007ffeeb4750b0 RCX: 00007f09664e01e7
[   34.013013][  T471] RDX: 0000000000000000 RSI: 00007ffeeb4749f0 RDI: 0000000000000005
[   34.013480][  T471] RBP: 0000000000000004 R08: 00000000000000b8 R09: 0000000000000000
[   34.013948][  T471] R10: 00007f09663d86f8 R11: 0000000000000246 R12: 00007ffeeb4750e0
[   34.014410][  T471] R13: 00000000686e803c R14: 0000000000499600 R15: 00007ffeeb474ae4
| [   35.431819][  T487] ------------[ cut here ]------------
| [ 35.432688][ T487] WARNING: CPU: 0 PID: 487 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   35.433330][  T487] Modules linked in: ip_gre gre
| [   35.434312][  T487] Tainted: [W]=WARN
[   35.434547][  T487] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 35.434970][ T487] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 35.435292][ T487] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   35.436415][  T487] RSP: 0018:ffffc900010a7000 EFLAGS: 00010246
[   35.436798][  T487] RAX: 0000000000000000 RBX: ffff88800ae99000 RCX: 0000000000000001
[   35.437267][  T487] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   35.437753][  T487] RBP: ffffc900010a70e8 R08: ffff88800ae99218 R09: 0000000000000000
[   35.438232][  T487] R10: ffffc900010a7118 R11: ffffffff9f58d1e0 R12: 1ffff92000214e04
[   35.438704][  T487] R13: 000000000000ffd9 R14: ffffc900010a7118 R15: ffff88800ae99218
[   35.439200][  T487] FS:  00007f987a665800(0000) GS:ffff8880c4599000(0000) knlGS:0000000000000000
[   35.439759][  T487] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.440159][  T487] CR2: 0000000000436890 CR3: 000000000948a002 CR4: 0000000000772ef0
[   35.440636][  T487] PKRU: 55555554
[   35.440872][  T487] Call Trace:
[   35.441099][  T487]  <TASK>
[ 35.441253][ T487] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 35.441634][ T487] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.441948][ T487] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 35.442251][ T487] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 35.442563][ T487] netif_set_mtu (net/core/dev.c:9652) 
[ 35.442882][ T487] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 35.443221][ T487] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 35.443530][ T487] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 35.443767][ T487] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 35.444089][ T487] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 35.444411][ T487] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 35.444716][ T487] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 35.445096][ T487] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 35.445405][ T487] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 35.445710][ T487] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 35.446026][ T487] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 35.446333][ T487] ? __dev_get_by_name (net/core/dev.c:865) 
[ 35.446634][ T487] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 35.446953][ T487] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 35.447290][ T487] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 35.447602][ T487] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 35.447927][ T487] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 35.448251][ T487] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 35.448562][ T487] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.448912][ T487] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 35.449227][ T487] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.449690][ T487] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.450235][ T487] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 35.450675][ T487] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.451017][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.451344][ T487] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 35.451654][ T487] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.451975][ T487] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 35.452305][ T487] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 35.452604][ T487] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 35.452914][ T487] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 35.453216][ T487] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 35.453522][ T487] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.453844][ T487] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 35.454147][ T487] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 35.454445][ T487] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 35.454753][ T487] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 35.455078][ T487] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 35.455400][ T487] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 35.455804][ T487] ___sys_sendmsg (net/socket.c:2670) 
[ 35.456122][ T487] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 35.456430][ T487] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 35.456741][ T487] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 35.457062][ T487] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 35.457363][ T487] ? __handle_mm_fault (mm/memory.c:6212) 
[ 35.457686][ T487] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 35.458010][ T487] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 35.458340][ T487] __sys_sendmsg (net/socket.c:2700) 
[ 35.458648][ T487] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 35.458980][ T487] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 35.459312][ T487] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 35.459620][ T487] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.459939][ T487] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 35.460262][ T487] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   35.460633][  T487] RIP: 0033:0x7f987a8321e7
[ 35.460952][ T487] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   35.462069][  T487] RSP: 002b:00007ffd82414e48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   35.462550][  T487] RAX: ffffffffffffffda RBX: 00007ffd82415570 RCX: 00007f987a8321e7
[   35.463016][  T487] RDX: 0000000000000000 RSI: 00007ffd82414eb0 RDI: 0000000000000005
[   35.463500][  T487] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   35.463969][  T487] R10: 00007f987a72a6f8 R11: 0000000000000246 R12: 00007ffd824155a0
[   35.464446][  T487] R13: 00000000686e803d R14: 0000000000499600 R15: 00007ffd82414fa4
| [   36.864795][  T503] ------------[ cut here ]------------
| [ 36.865863][ T503] WARNING: CPU: 1 PID: 503 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   36.866482][  T503] Modules linked in: ip_gre gre
| [   36.867437][  T503] Tainted: [W]=WARN
[   36.867681][  T503] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 36.868087][ T503] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 36.868411][ T503] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   36.869516][  T503] RSP: 0018:ffffc90001157000 EFLAGS: 00010246
[   36.869914][  T503] RAX: 0000000000000000 RBX: ffff8880095ec000 RCX: 0000000000000001
[   36.870379][  T503] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   36.870850][  T503] RBP: ffffc900011570e8 R08: ffff8880095ec218 R09: 0000000000000000
[   36.871308][  T503] R10: ffffc90001157118 R11: 55933729ddd96659 R12: 1ffff9200022ae04
[   36.871766][  T503] R13: 00000000000005b6 R14: ffffc90001157118 R15: ffff8880095ec218
[   36.872242][  T503] FS:  00007ff936358800(0000) GS:ffff8880c4619000(0000) knlGS:0000000000000000
[   36.872788][  T503] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   36.873185][  T503] CR2: 0000000000436890 CR3: 0000000009f33001 CR4: 0000000000772ef0
[   36.873653][  T503] PKRU: 55555554
[   36.873894][  T503] Call Trace:
[   36.874124][  T503]  <TASK>
[ 36.874281][ T503] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 36.874597][ T503] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 36.874916][ T503] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 36.875226][ T503] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 36.875542][ T503] netif_set_mtu (net/core/dev.c:9652) 
[ 36.875867][ T503] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 36.876186][ T503] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 36.876495][ T503] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 36.876734][ T503] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 36.877052][ T503] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 36.877366][ T503] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 36.877686][ T503] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 36.878092][ T503] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 36.878408][ T503] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 36.878718][ T503] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 36.879042][ T503] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 36.879347][ T503] ? __dev_get_by_name (net/core/dev.c:865) 
[ 36.879655][ T503] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 36.879982][ T503] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 36.880295][ T503] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 36.880599][ T503] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 36.880936][ T503] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 36.881255][ T503] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 36.881569][ T503] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.881898][ T503] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 36.882205][ T503] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 36.882514][ T503] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 36.882836][ T503] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 36.883146][ T503] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.883456][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.883770][ T503] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 36.884096][ T503] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 36.884409][ T503] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 36.884728][ T503] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 36.885042][ T503] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 36.885350][ T503] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 36.885660][ T503] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 36.885978][ T503] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 36.886291][ T503] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 36.886603][ T503] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 36.886920][ T503] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 36.887236][ T503] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 36.887546][ T503] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 36.887878][ T503] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 36.888277][ T503] ___sys_sendmsg (net/socket.c:2670) 
[ 36.888586][ T503] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 36.888903][ T503] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 36.889216][ T503] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 36.889522][ T503] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 36.889847][ T503] ? __handle_mm_fault (mm/memory.c:6212) 
[ 36.890155][ T503] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 36.890463][ T503] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 36.890790][ T503] __sys_sendmsg (net/socket.c:2700) 
[ 36.891105][ T503] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 36.891418][ T503] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 36.891731][ T503] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 36.892056][ T503] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 36.892376][ T503] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 36.892687][ T503] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   36.893075][  T503] RIP: 0033:0x7ff9365251e7
[ 36.893392][ T503] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   36.894494][  T503] RSP: 002b:00007fffe80be5d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   36.894971][  T503] RAX: ffffffffffffffda RBX: 00007fffe80bed00 RCX: 00007ff9365251e7
[   36.895432][  T503] RDX: 0000000000000000 RSI: 00007fffe80be640 RDI: 0000000000000005
[   36.895909][  T503] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   36.896372][  T503] R10: 00007ff93641d6f8 R11: 0000000000000246 R12: 00007fffe80bed30
[   36.896846][  T503] R13: 00000000686e803f R14: 0000000000499600 R15: 00007fffe80be734
| [   38.343883][  T519] ------------[ cut here ]------------
| [ 38.344234][ T519] WARNING: CPU: 0 PID: 519 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   38.344951][  T519] Modules linked in: ip_gre gre
| [   38.345926][  T519] Tainted: [W]=WARN
[   38.346163][  T519] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 38.346549][ T519] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 38.346883][ T519] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   38.348012][  T519] RSP: 0018:ffffc900010d7000 EFLAGS: 00010246
[   38.348406][  T519] RAX: 0000000000000000 RBX: ffff888005421000 RCX: 0000000000000001
[   38.348873][  T519] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   38.349335][  T519] RBP: ffffc900010d70e8 R08: ffff888005421218 R09: 0000000000000000
[   38.349799][  T519] R10: ffffc900010d7118 R11: ffffffff9f58d1e0 R12: 1ffff9200021ae04
[   38.350271][  T519] R13: 000000000000ffd9 R14: ffffc900010d7118 R15: ffff888005421218
[   38.350737][  T519] FS:  00007f109b4f4800(0000) GS:ffff8880c4599000(0000) knlGS:0000000000000000
[   38.351291][  T519] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   38.351682][  T519] CR2: 00007f109b74fb78 CR3: 000000000ec97003 CR4: 0000000000772ef0
[   38.352155][  T519] PKRU: 55555554
[   38.352383][  T519] Call Trace:
[   38.352615][  T519]  <TASK>
[ 38.352771][ T519] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 38.353162][ T519] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 38.353472][ T519] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 38.353782][ T519] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 38.354118][ T519] netif_set_mtu (net/core/dev.c:9652) 
[ 38.354425][ T519] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 38.354746][ T519] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 38.355080][ T519] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 38.355315][ T519] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 38.355628][ T519] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 38.355954][ T519] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 38.356267][ T519] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 38.356651][ T519] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 38.356983][ T519] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 38.357295][ T519] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 38.357615][ T519] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 38.357932][ T519] ? __dev_get_by_name (net/core/dev.c:865) 
[ 38.358240][ T519] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 38.358548][ T519] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 38.358875][ T519] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 38.359179][ T519] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 38.359500][ T519] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 38.359831][ T519] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 38.360152][ T519] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 38.360471][ T519] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 38.360776][ T519] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 38.361096][ T519] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 38.361402][ T519] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 38.361709][ T519] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 38.362032][ T519] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 38.362346][ T519] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 38.362653][ T519] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 38.362975][ T519] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 38.363294][ T519] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 38.363599][ T519] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 38.363920][ T519] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 38.364232][ T519] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 38.364540][ T519] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 38.364861][ T519] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 38.365174][ T519] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 38.365482][ T519] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 38.365794][ T519] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 38.366115][ T519] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 38.366419][ T519] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 38.366834][ T519] ___sys_sendmsg (net/socket.c:2670) 
[ 38.367146][ T519] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 38.367451][ T519] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 38.367764][ T519] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 38.368081][ T519] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 38.368392][ T519] ? __handle_mm_fault (mm/memory.c:6212) 
[ 38.368699][ T519] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 38.369019][ T519] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 38.369346][ T519] __sys_sendmsg (net/socket.c:2700) 
[ 38.369656][ T519] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 38.369975][ T519] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 38.370290][ T519] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 38.370601][ T519] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 38.370922][ T519] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 38.371236][ T519] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   38.371614][  T519] RIP: 0033:0x7f109b6c11e7
[ 38.371941][ T519] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   38.373051][  T519] RSP: 002b:00007ffc4bab3fb8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   38.373751][  T519] RAX: ffffffffffffffda RBX: 00007ffc4bab46e0 RCX: 00007f109b6c11e7
[   38.374573][  T519] RDX: 0000000000000000 RSI: 00007ffc4bab4020 RDI: 0000000000000005
[   38.375285][  T519] RBP: 0000000000000004 R08: 00000000000000b8 R09: 0000000000000000
[   38.375749][  T519] R10: 00007f109b5b96f8 R11: 0000000000000246 R12: 00007ffc4bab4710
[   38.376223][  T519] R13: 00000000686e8040 R14: 0000000000499600 R15: 00007ffc4bab4114
| [   39.784629][  T535] ------------[ cut here ]------------
| [ 39.785069][ T535] WARNING: CPU: 0 PID: 535 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   39.785684][  T535] Modules linked in: ip_gre gre
| [   39.786657][  T535] Tainted: [W]=WARN
[   39.786902][  T535] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 39.787292][ T535] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 39.787622][ T535] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   39.788742][  T535] RSP: 0018:ffffc900012d7000 EFLAGS: 00010246
[   39.789149][  T535] RAX: 0000000000000000 RBX: ffff8880097e1000 RCX: 0000000000000001
[   39.789618][  T535] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   39.790103][  T535] RBP: ffffc900012d70e8 R08: ffff8880097e1218 R09: 0000000000000000
[   39.790573][  T535] R10: ffffc900012d7118 R11: ffffffff9f58d1e0 R12: 1ffff9200025ae04
[   39.791250][  T535] R13: 000000000000ffd9 R14: ffffc900012d7118 R15: ffff8880097e1218
[   39.791746][  T535] FS:  00007f9d1b962800(0000) GS:ffff8880c4599000(0000) knlGS:0000000000000000
[   39.792306][  T535] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   39.792710][  T535] CR2: 0000000000436890 CR3: 000000000be11004 CR4: 0000000000772ef0
[   39.793190][  T535] PKRU: 55555554
[   39.793426][  T535] Call Trace:
[   39.793661][  T535]  <TASK>
[ 39.793834][ T535] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 39.794224][ T535] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 39.794539][ T535] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 39.794861][ T535] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 39.795181][ T535] netif_set_mtu (net/core/dev.c:9652) 
[ 39.795491][ T535] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 39.795810][ T535] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 39.796129][ T535] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 39.796363][ T535] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 39.796680][ T535] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 39.797006][ T535] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 39.797321][ T535] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 39.797710][ T535] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 39.798037][ T535] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 39.798350][ T535] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 39.798660][ T535] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 39.798996][ T535] ? __dev_get_by_name (net/core/dev.c:865) 
[ 39.799308][ T535] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 39.799616][ T535] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 39.799936][ T535] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 39.800245][ T535] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 39.800559][ T535] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 39.800886][ T535] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 39.801204][ T535] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 39.801524][ T535] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 39.801842][ T535] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 39.802154][ T535] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 39.802459][ T535] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 39.802770][ T535] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 39.803092][ T535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.803407][ T535] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 39.803721][ T535] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 39.804042][ T535] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 39.804361][ T535] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 39.804668][ T535] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 39.804987][ T535] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 39.805299][ T535] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 39.805604][ T535] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 39.805929][ T535] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 39.806243][ T535] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 39.806554][ T535] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 39.806877][ T535] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 39.807189][ T535] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 39.807493][ T535] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 39.807910][ T535] ___sys_sendmsg (net/socket.c:2670) 
[ 39.808226][ T535] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 39.808534][ T535] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 39.808855][ T535] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 39.809164][ T535] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 39.809474][ T535] ? __handle_mm_fault (mm/memory.c:6212) 
[ 39.809783][ T535] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 39.810102][ T535] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 39.810431][ T535] __sys_sendmsg (net/socket.c:2700) 
[ 39.810737][ T535] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 39.811053][ T535] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 39.811371][ T535] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 39.811679][ T535] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 39.811999][ T535] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 39.812309][ T535] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   39.812694][  T535] RIP: 0033:0x7f9d1bb2f1e7
[ 39.813020][ T535] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   39.814128][  T535] RSP: 002b:00007ffed5b6dc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   39.814597][  T535] RAX: ffffffffffffffda RBX: 00007ffed5b6e3a0 RCX: 00007f9d1bb2f1e7
[   39.815068][  T535] RDX: 0000000000000000 RSI: 00007ffed5b6dce0 RDI: 0000000000000005
[   39.815526][  T535] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   39.815994][  T535] R10: 00007f9d1ba276f8 R11: 0000000000000246 R12: 00007ffed5b6e3d0
[   39.816459][  T535] R13: 00000000686e8042 R14: 0000000000499600 R15: 00007ffed5b6ddd4
| [   41.244993][  T551] ------------[ cut here ]------------
| [ 41.245343][ T551] WARNING: CPU: 0 PID: 551 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   41.245975][  T551] Modules linked in: ip_gre gre
| [   41.246933][  T551] Tainted: [W]=WARN
[   41.247172][  T551] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.247562][ T551] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 41.247903][ T551] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   41.249025][  T551] RSP: 0018:ffffc90001397000 EFLAGS: 00010246
[   41.249421][  T551] RAX: 0000000000000000 RBX: ffff8880083c1000 RCX: 0000000000000001
[   41.249910][  T551] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   41.250379][  T551] RBP: ffffc900013970e8 R08: ffff8880083c1218 R09: 0000000000000000
[   41.250848][  T551] R10: ffffc90001397118 R11: 959b6c6a7c9d57b6 R12: 1ffff92000272e04
[   41.251309][  T551] R13: 00000000000005b6 R14: ffffc90001397118 R15: ffff8880083c1218
[   41.251767][  T551] FS:  00007fd008fa1800(0000) GS:ffff8880c4599000(0000) knlGS:0000000000000000
[   41.252316][  T551] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.252709][  T551] CR2: 00007fd0090a1130 CR3: 000000000f1d9002 CR4: 0000000000772ef0
[   41.253183][  T551] PKRU: 55555554
[   41.253416][  T551] Call Trace:
[   41.253646][  T551]  <TASK>
[ 41.253803][ T551] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.254124][ T551] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.254436][ T551] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 41.254747][ T551] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 41.255073][ T551] netif_set_mtu (net/core/dev.c:9652) 
[ 41.255383][ T551] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 41.255702][ T551] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 41.256021][ T551] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 41.256256][ T551] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 41.256564][ T551] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 41.256894][ T551] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 41.257210][ T551] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 41.257600][ T551] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.257928][ T551] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 41.258242][ T551] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 41.258554][ T551] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 41.258870][ T551] ? __dev_get_by_name (net/core/dev.c:865) 
[ 41.259185][ T551] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 41.259493][ T551] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 41.259809][ T551] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.260123][ T551] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 41.260434][ T551] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 41.260759][ T551] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.261083][ T551] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.261403][ T551] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.261714][ T551] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.262034][ T551] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.262339][ T551] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.262648][ T551] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.262971][ T551] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.263286][ T551] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.263592][ T551] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.263914][ T551] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.264234][ T551] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.264539][ T551] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 41.264856][ T551] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 41.265168][ T551] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.265474][ T551] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.265785][ T551] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.266107][ T551] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.266417][ T551] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.266731][ T551] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.267051][ T551] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.267356][ T551] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.267757][ T551] ___sys_sendmsg (net/socket.c:2670) 
[ 41.268078][ T551] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.268389][ T551] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 41.268700][ T551] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 41.269068][ T551] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 41.269617][ T551] ? __handle_mm_fault (mm/memory.c:6212) 
[ 41.270165][ T551] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 41.270621][ T551] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 41.270967][ T551] __sys_sendmsg (net/socket.c:2700) 
[ 41.271286][ T551] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.271592][ T551] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 41.271917][ T551] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 41.272227][ T551] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.272538][ T551] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.272855][ T551] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.273239][  T551] RIP: 0033:0x7fd00916e1e7
[ 41.273559][ T551] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   41.274666][  T551] RSP: 002b:00007ffce013ad08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.275142][  T551] RAX: ffffffffffffffda RBX: 00007ffce013b430 RCX: 00007fd00916e1e7
[   41.275608][  T551] RDX: 0000000000000000 RSI: 00007ffce013ad70 RDI: 0000000000000005
[   41.276078][  T551] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   41.276540][  T551] R10: 00007fd0090666f8 R11: 0000000000000246 R12: 00007ffce013b460
[   41.277008][  T551] R13: 00000000686e8043 R14: 0000000000499600 R15: 00007ffce013ae64
| [   42.695159][  T567] ------------[ cut here ]------------
| [ 42.695570][ T567] WARNING: CPU: 2 PID: 567 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   42.696258][  T567] Modules linked in: ip_gre gre
| [   42.697290][  T567] Tainted: [W]=WARN
[   42.697553][  T567] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 42.698025][ T567] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 42.698373][ T567] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   42.699544][  T567] RSP: 0018:ffffc90001367000 EFLAGS: 00010246
[   42.699994][  T567] RAX: 0000000000000000 RBX: ffff88800c5a4000 RCX: 0000000000000001
[   42.700488][  T567] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   42.701001][  T567] RBP: ffffc900013670e8 R08: ffff88800c5a4218 R09: 0000000000000000
[   42.701496][  T567] R10: ffffc90001367118 R11: ffffffff9f58d1e0 R12: 1ffff9200026ce04
[   42.702001][  T567] R13: 000000000000ffd9 R14: ffffc90001367118 R15: ffff88800c5a4218
[   42.702499][  T567] FS:  00007f6d80c5f800(0000) GS:ffff8880c4699000(0000) knlGS:0000000000000000
[   42.703102][  T567] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   42.703522][  T567] CR2: 0000000000436890 CR3: 000000000fe02002 CR4: 0000000000772ef0
[   42.704183][  T567] PKRU: 55555554
[   42.704502][  T567] Call Trace:
[   42.704761][  T567]  <TASK>
[ 42.704951][ T567] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 42.705380][ T567] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 42.705734][ T567] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 42.706089][ T567] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 42.706440][ T567] netif_set_mtu (net/core/dev.c:9652) 
[ 42.706777][ T567] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 42.707149][ T567] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 42.707493][ T567] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 42.707761][ T567] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 42.708112][ T567] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 42.708458][ T567] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 42.708800][ T567] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 42.709231][ T567] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 42.709576][ T567] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 42.709926][ T567] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 42.710264][ T567] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 42.710593][ T567] ? __dev_get_by_name (net/core/dev.c:865) 
[ 42.710951][ T567] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 42.711294][ T567] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 42.711639][ T567] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 42.711989][ T567] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 42.712334][ T567] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 42.712677][ T567] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 42.713033][ T567] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.713386][ T567] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 42.713719][ T567] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 42.714064][ T567] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 42.714397][ T567] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 42.714739][ T567] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.715101][ T567] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.715445][ T567] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 42.715787][ T567] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 42.716136][ T567] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 42.716486][ T567] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 42.716830][ T567] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 42.717182][ T567] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 42.717519][ T567] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 42.717876][ T567] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 42.718218][ T567] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 42.718560][ T567] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 42.718927][ T567] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 42.719276][ T567] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 42.719619][ T567] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 42.719965][ T567] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 42.720408][ T567] ___sys_sendmsg (net/socket.c:2670) 
[ 42.720748][ T567] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 42.721092][ T567] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 42.721443][ T567] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 42.721776][ T567] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 42.722138][ T567] ? __handle_mm_fault (mm/memory.c:6212) 
[ 42.722471][ T567] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 42.722811][ T567] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 42.723198][ T567] __sys_sendmsg (net/socket.c:2700) 
[ 42.723537][ T567] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 42.723880][ T567] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 42.724229][ T567] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 42.724564][ T567] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 42.724916][ T567] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 42.725253][ T567] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   42.725665][  T567] RIP: 0033:0x7f6d80e2c1e7
[ 42.726021][ T567] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   42.727212][  T567] RSP: 002b:00007ffed0e75528 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   42.727732][  T567] RAX: ffffffffffffffda RBX: 00007ffed0e75c50 RCX: 00007f6d80e2c1e7
[   42.728241][  T567] RDX: 0000000000000000 RSI: 00007ffed0e75590 RDI: 0000000000000005
[   42.728737][  T567] RBP: 0000000000000004 R08: 00000000000000b8 R09: 0000000000000000
[   42.729259][  T567] R10: 00007f6d80d246f8 R11: 0000000000000246 R12: 00007ffed0e75c80
[   42.729755][  T567] R13: 00000000686e8045 R14: 0000000000499600 R15: 00007ffed0e75684
| [   44.285809][  T584] ------------[ cut here ]------------
| [ 44.286235][ T584] WARNING: CPU: 1 PID: 584 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   44.286871][  T584] Modules linked in: ip_gre gre
| [   44.287870][  T584] Tainted: [W]=WARN
[   44.288110][  T584] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 44.288505][ T584] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 44.288872][ T584] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   44.290035][  T584] RSP: 0018:ffffc90001517000 EFLAGS: 00010246
[   44.290439][  T584] RAX: 0000000000000000 RBX: ffff888005571000 RCX: 0000000000000001
[   44.290915][  T584] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   44.291371][  T584] RBP: ffffc900015170e8 R08: ffff888005571218 R09: 0000000000000000
[   44.291840][  T584] R10: ffffc90001517118 R11: ffffffff9f58d1e0 R12: 1ffff920002a2e04
[   44.292316][  T584] R13: 000000000000ffd9 R14: ffffc90001517118 R15: ffff888005571218
[   44.292785][  T584] FS:  00007f20bbaee800(0000) GS:ffff8880c4619000(0000) knlGS:0000000000000000
[   44.293347][  T584] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.293751][  T584] CR2: 0000000000436890 CR3: 0000000004ef0004 CR4: 0000000000772ef0
[   44.294234][  T584] PKRU: 55555554
[   44.294469][  T584] Call Trace:
[   44.294710][  T584]  <TASK>
[ 44.294875][ T584] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 44.295261][ T584] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 44.295570][ T584] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 44.295954][ T584] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 44.296282][ T584] netif_set_mtu (net/core/dev.c:9652) 
[ 44.296594][ T584] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 44.296938][ T584] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 44.297252][ T584] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 44.297492][ T584] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 44.297813][ T584] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 44.298148][ T584] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 44.298464][ T584] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 44.298859][ T584] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 44.299181][ T584] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 44.299495][ T584] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 44.299821][ T584] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 44.300147][ T584] ? __dev_get_by_name (net/core/dev.c:865) 
[ 44.300457][ T584] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 44.300763][ T584] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 44.301090][ T584] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 44.301417][ T584] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 44.301734][ T584] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 44.302066][ T584] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 44.302397][ T584] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 44.302714][ T584] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 44.303024][ T584] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 44.303331][ T584] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 44.303634][ T584] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 44.303948][ T584] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 44.304273][ T584] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.304594][ T584] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 44.304925][ T584] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 44.305241][ T584] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 44.305562][ T584] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 44.305884][ T584] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 44.306207][ T584] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 44.306511][ T584] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 44.306816][ T584] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.307141][ T584] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 44.307471][ T584] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 44.307792][ T584] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 44.308121][ T584] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 44.308440][ T584] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 44.308757][ T584] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 44.309231][ T584] ___sys_sendmsg (net/socket.c:2670) 
[ 44.309550][ T584] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 44.309872][ T584] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 44.310193][ T584] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 44.310514][ T584] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 44.310835][ T584] ? __handle_mm_fault (mm/memory.c:6212) 
[ 44.311170][ T584] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 44.311488][ T584] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 44.311835][ T584] __sys_sendmsg (net/socket.c:2700) 
[ 44.312156][ T584] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 44.312458][ T584] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 44.312768][ T584] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 44.313115][ T584] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 44.313440][ T584] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 44.313765][ T584] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   44.314157][  T584] RIP: 0033:0x7f20bbcbb1e7
[ 44.314487][ T584] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   44.315609][  T584] RSP: 002b:00007ffd35b720e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   44.316103][  T584] RAX: ffffffffffffffda RBX: 00007ffd35b72810 RCX: 00007f20bbcbb1e7
[   44.316573][  T584] RDX: 0000000000000000 RSI: 00007ffd35b72150 RDI: 0000000000000005
[   44.317060][  T584] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   44.317527][  T584] R10: 00007f20bbbb36f8 R11: 0000000000000246 R12: 00007ffd35b72840
[   44.318011][  T584] R13: 00000000686e8046 R14: 0000000000499600 R15: 00007ffd35b72244
| [   45.931258][  T601] ------------[ cut here ]------------
| [ 45.931625][ T601] WARNING: CPU: 3 PID: 601 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   45.932279][  T601] Modules linked in: ip_gre gre
| [   45.933277][  T601] Tainted: [W]=WARN
[   45.933524][  T601] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 45.933940][ T601] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 45.934275][ T601] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   45.935431][  T601] RSP: 0018:ffffc900015d7000 EFLAGS: 00010246
[   45.935851][  T601] RAX: 0000000000000000 RBX: ffff88800cbd4000 RCX: 0000000000000001
[   45.936338][  T601] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   45.936837][  T601] RBP: ffffc900015d70e8 R08: ffff88800cbd4218 R09: 0000000000000000
[   45.937324][  T601] R10: ffffc900015d7118 R11: 6b4daafb451ebec4 R12: 1ffff920002bae04
[   45.937812][  T601] R13: 00000000000005b6 R14: ffffc900015d7118 R15: ffff88800cbd4218
[   45.938302][  T601] FS:  00007f31e3899800(0000) GS:ffff8880c4719000(0000) knlGS:0000000000000000
[   45.938919][  T601] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   45.939333][  T601] CR2: 0000000000436890 CR3: 0000000010ca9006 CR4: 0000000000772ef0
[   45.939830][  T601] PKRU: 55555554
[   45.940075][  T601] Call Trace:
[   45.940315][  T601]  <TASK>
[ 45.940479][ T601] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 45.940811][ T601] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 45.941149][ T601] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 45.941477][ T601] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 45.941807][ T601] netif_set_mtu (net/core/dev.c:9652) 
[ 45.942140][ T601] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 45.942480][ T601] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 45.942805][ T601] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 45.943060][ T601] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 45.943386][ T601] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 45.943720][ T601] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 45.944060][ T601] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 45.944466][ T601] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 45.944799][ T601] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 45.945133][ T601] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 45.945462][ T601] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 45.945783][ T601] ? __dev_get_by_name (net/core/dev.c:865) 
[ 45.946125][ T601] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 45.946446][ T601] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 45.946775][ T601] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 45.947109][ T601] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 45.947438][ T601] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 45.947780][ T601] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 45.948115][ T601] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 45.948456][ T601] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 45.948777][ T601] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 45.949109][ T601] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 45.949428][ T601] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 45.949753][ T601] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 45.950090][ T601] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.950418][ T601] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 45.950742][ T601] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 45.951079][ T601] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 45.951414][ T601] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 45.951734][ T601] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 45.952070][ T601] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 45.952402][ T601] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 45.952727][ T601] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 45.953067][ T601] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 45.953406][ T601] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 45.953730][ T601] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 45.954069][ T601] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 45.954396][ T601] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 45.954717][ T601] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 45.955140][ T601] ___sys_sendmsg (net/socket.c:2670) 
[ 45.955471][ T601] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 45.955793][ T601] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 45.956144][ T601] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 45.956465][ T601] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 45.956793][ T601] ? __handle_mm_fault (mm/memory.c:6212) 
[ 45.957143][ T601] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 45.957469][ T601] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 45.957847][ T601] __sys_sendmsg (net/socket.c:2700) 
[ 45.958175][ T601] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 45.958496][ T601] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 45.958842][ T601] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 45.959169][ T601] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 45.959495][ T601] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 45.959836][ T601] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   45.960242][  T601] RIP: 0033:0x7f31e3a661e7
[ 45.960574][ T601] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   45.961734][  T601] RSP: 002b:00007ffea0d10f08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   45.962234][  T601] RAX: ffffffffffffffda RBX: 00007ffea0d11630 RCX: 00007f31e3a661e7
[   45.962716][  T601] RDX: 0000000000000000 RSI: 00007ffea0d10f70 RDI: 0000000000000005
[   45.963204][  T601] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   45.963685][  T601] R10: 00007f31e395e6f8 R11: 0000000000000246 R12: 00007ffea0d11660
[   45.964175][  T601] R13: 00000000686e8048 R14: 0000000000499600 R15: 00007ffea0d11064
| [   47.549716][  T618] ------------[ cut here ]------------
| [ 47.550318][ T618] WARNING: CPU: 3 PID: 618 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   47.550936][  T618] Modules linked in: ip_gre gre
| [   47.551884][  T618] Tainted: [W]=WARN
[   47.552123][  T618] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.552508][ T618] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 47.552850][ T618] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   47.553966][  T618] RSP: 0018:ffffc90001697000 EFLAGS: 00010246
[   47.554356][  T618] RAX: 0000000000000000 RBX: ffff88800c2dc000 RCX: 0000000000000001
[   47.554829][  T618] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   47.555290][  T618] RBP: ffffc900016970e8 R08: ffff88800c2dc218 R09: 0000000000000000
[   47.555763][  T618] R10: ffffc90001697118 R11: ffffffff9f58d1e0 R12: 1ffff920002d2e04
[   47.556225][  T618] R13: 000000000000ffd9 R14: ffffc90001697118 R15: ffff88800c2dc218
[   47.556682][  T618] FS:  00007fea35702800(0000) GS:ffff8880c4719000(0000) knlGS:0000000000000000
[   47.557236][  T618] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.557642][  T618] CR2: 0000000000436890 CR3: 0000000010d4c005 CR4: 0000000000772ef0
[   47.558108][  T618] PKRU: 55555554
[   47.558336][  T618] Call Trace:
[   47.558562][  T618]  <TASK>
[ 47.558717][ T618] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 47.559106][ T618] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.559416][ T618] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 47.559731][ T618] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 47.560058][ T618] netif_set_mtu (net/core/dev.c:9652) 
[ 47.560363][ T618] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 47.560680][ T618] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 47.561003][ T618] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 47.561243][ T618] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 47.561551][ T618] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 47.561875][ T618] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 47.562195][ T618] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 47.562577][ T618] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 47.562899][ T618] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 47.563207][ T618] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 47.563515][ T618] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 47.563816][ T618] ? __dev_get_by_name (net/core/dev.c:865) 
[ 47.564140][ T618] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 47.564444][ T618] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 47.564752][ T618] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 47.565071][ T618] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 47.565381][ T618] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 47.565700][ T618] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 47.566019][ T618] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 47.566337][ T618] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 47.566642][ T618] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 47.566954][ T618] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 47.567257][ T618] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 47.567560][ T618] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 47.567882][ T618] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.568192][ T618] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 47.568497][ T618] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 47.568799][ T618] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 47.569132][ T618] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 47.569440][ T618] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 47.569746][ T618] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 47.570068][ T618] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 47.570373][ T618] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.570684][ T618] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 47.571000][ T618] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 47.571310][ T618] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 47.571619][ T618] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 47.571932][ T618] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 47.572234][ T618] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 47.572625][ T618] ___sys_sendmsg (net/socket.c:2670) 
[ 47.572944][ T618] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 47.573257][ T618] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 47.573569][ T618] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 47.573878][ T618] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 47.574185][ T618] ? __handle_mm_fault (mm/memory.c:6212) 
[ 47.574491][ T618] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 47.574793][ T618] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 47.575126][ T618] __sys_sendmsg (net/socket.c:2700) 
[ 47.575434][ T618] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 47.575737][ T618] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 47.576054][ T618] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 47.576360][ T618] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 47.576674][ T618] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 47.576998][ T618] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   47.577377][  T618] RIP: 0033:0x7fea358cf1e7
[ 47.577710][ T618] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   47.578811][  T618] RSP: 002b:00007ffd1136d4f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   47.579281][  T618] RAX: ffffffffffffffda RBX: 00007ffd1136dc20 RCX: 00007fea358cf1e7
[   47.579740][  T618] RDX: 0000000000000000 RSI: 00007ffd1136d560 RDI: 0000000000000005
[   47.580204][  T618] RBP: 0000000000000004 R08: 00000000000000b8 R09: 0000000000000000
[   47.580660][  T618] R10: 00007fea357c76f8 R11: 0000000000000246 R12: 00007ffd1136dc50
[   47.581135][  T618] R13: 00000000686e804a R14: 0000000000499600 R15: 00007ffd1136d654
| [   48.971072][  T634] ------------[ cut here ]------------
| [ 48.971495][ T634] WARNING: CPU: 1 PID: 634 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   48.972127][  T634] Modules linked in: ip_gre gre
| [   48.973091][  T634] Tainted: [W]=WARN
[   48.973327][  T634] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 48.973713][ T634] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 48.974038][ T634] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   48.975139][  T634] RSP: 0018:ffffc90001757000 EFLAGS: 00010246
[   48.975527][  T634] RAX: 0000000000000000 RBX: ffff88800f2a4000 RCX: 0000000000000001
[   48.975999][  T634] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   48.976456][  T634] RBP: ffffc900017570e8 R08: ffff88800f2a4218 R09: 0000000000000000
[   48.976927][  T634] R10: ffffc90001757118 R11: ffffffff9f58d1e0 R12: 1ffff920002eae04
[   48.977391][  T634] R13: 000000000000ffd9 R14: ffffc90001757118 R15: ffff88800f2a4218
[   48.977866][  T634] FS:  00007f65ff6c8800(0000) GS:ffff8880c4619000(0000) knlGS:0000000000000000
[   48.978400][  T634] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   48.978785][  T634] CR2: 0000000000436890 CR3: 00000000052de002 CR4: 0000000000772ef0
[   48.979251][  T634] PKRU: 55555554
[   48.979480][  T634] Call Trace:
[   48.979710][  T634]  <TASK>
[ 48.979875][ T634] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 48.980259][ T634] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 48.980569][ T634] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 48.980897][ T634] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 48.981217][ T634] netif_set_mtu (net/core/dev.c:9652) 
[ 48.981525][ T634] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 48.981854][ T634] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 48.982160][ T634] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 48.982389][ T634] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 48.982693][ T634] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 48.983011][ T634] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 48.983319][ T634] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 48.983709][ T634] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 48.984047][ T634] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 48.984353][ T634] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 48.984659][ T634] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 48.984977][ T634] ? __dev_get_by_name (net/core/dev.c:865) 
[ 48.985285][ T634] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 48.985588][ T634] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 48.985902][ T634] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 48.986212][ T634] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 48.986522][ T634] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 48.986847][ T634] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 48.987160][ T634] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 48.987477][ T634] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 48.987788][ T634] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 48.988103][ T634] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 48.988413][ T634] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 48.988720][ T634] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 48.989044][ T634] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 48.989356][ T634] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 48.989661][ T634] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 48.989976][ T634] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 48.990292][ T634] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 48.990599][ T634] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 48.990914][ T634] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 48.991225][ T634] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 48.991531][ T634] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 48.991854][ T634] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 48.992163][ T634] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 48.992466][ T634] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 48.992777][ T634] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 48.993110][ T634] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 48.993421][ T634] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 48.993811][ T634] ___sys_sendmsg (net/socket.c:2670) 
[ 48.994127][ T634] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 48.994432][ T634] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 48.994739][ T634] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 48.995058][ T634] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 48.995369][ T634] ? __handle_mm_fault (mm/memory.c:6212) 
[ 48.995674][ T634] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 48.995983][ T634] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 48.996310][ T634] __sys_sendmsg (net/socket.c:2700) 
[ 48.996614][ T634] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 48.996935][ T634] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 48.997332][ T634] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 48.997652][ T634] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 48.997971][ T634] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 48.998276][ T634] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   48.998651][  T634] RIP: 0033:0x7f65ff8951e7
[ 48.998986][ T634] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   49.000084][  T634] RSP: 002b:00007fffc25a3058 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   49.000550][  T634] RAX: ffffffffffffffda RBX: 00007fffc25a3780 RCX: 00007f65ff8951e7
[   49.001025][  T634] RDX: 0000000000000000 RSI: 00007fffc25a30c0 RDI: 0000000000000005
[   49.001487][  T634] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   49.001951][  T634] R10: 00007f65ff78d6f8 R11: 0000000000000246 R12: 00007fffc25a37b0
[   49.002407][  T634] R13: 00000000686e804b R14: 0000000000499600 R15: 00007fffc25a31b4
| [   50.406109][  T650] ------------[ cut here ]------------
| [ 50.406568][ T650] WARNING: CPU: 2 PID: 650 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   50.407222][  T650] Modules linked in: ip_gre gre
| [   50.408217][  T650] Tainted: [W]=WARN
[   50.408471][  T650] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 50.408883][ T650] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 50.409221][ T650] Code: 00 00 8b 05 77 04 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 da fc 9b 00 85 c0 0f 85 39 fe ff ff 90 <0f> 0b 90 e9 30 fe ff ff 48 b8 00 00 00 00 00 fc ff df 4c 89 fa 48
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	8b 05 77 04 bc 02    	mov    0x2bc0477(%rip),%eax        # 0x2bc047f
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb c0 0c 00 00 	lea    0xcc0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 da fc 9b 00       	call   0x9bfcfb
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   50.410339][  T650] RSP: 0018:ffffc90001817000 EFLAGS: 00010246
[   50.410746][  T650] RAX: 0000000000000000 RBX: ffff888005c99000 RCX: 0000000000000001
[   50.411229][  T650] RDX: 0000000000000000 RSI: ffffffff9eb10751 RDI: ffffffff9e258280
[   50.411701][  T650] RBP: ffffc900018170e8 R08: ffff888005c99218 R09: 0000000000000000
[   50.412190][  T650] R10: ffffc90001817118 R11: dc9530d06b6c1aab R12: 1ffff92000302e04
[   50.412671][  T650] R13: 00000000000005b6 R14: ffffc90001817118 R15: ffff888005c99218
[   50.413155][  T650] FS:  00007fc100973800(0000) GS:ffff8880c4699000(0000) knlGS:0000000000000000
[   50.413706][  T650] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   50.414115][  T650] CR2: 0000000000436890 CR3: 000000000c025005 CR4: 0000000000772ef0
[   50.414595][  T650] PKRU: 55555554
[   50.414848][  T650] Call Trace:
[   50.415092][  T650]  <TASK>
[ 50.415264][ T650] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 50.415590][ T650] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 50.415928][ T650] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 50.416252][ T650] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 50.416589][ T650] netif_set_mtu (net/core/dev.c:9652) 
[ 50.416919][ T650] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 50.417253][ T650] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 50.417579][ T650] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 50.417852][ T650] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 50.418175][ T650] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 50.418505][ T650] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 50.418841][ T650] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 50.419243][ T650] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 50.419571][ T650] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 50.419910][ T650] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 50.420238][ T650] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 50.420557][ T650] ? __dev_get_by_name (net/core/dev.c:865) 
[ 50.420914][ T650] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 50.421238][ T650] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 50.421564][ T650] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 50.421892][ T650] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 50.422218][ T650] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 50.422548][ T650] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 50.422886][ T650] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 50.423220][ T650] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 50.423550][ T650] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 50.423892][ T650] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 50.424222][ T650] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 50.424544][ T650] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 50.424882][ T650] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 50.425208][ T650] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 50.425537][ T650] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 50.425870][ T650] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 50.426205][ T650] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 50.426521][ T650] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 50.426854][ T650] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 50.427175][ T650] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 50.427494][ T650] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 50.427848][ T650] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 50.428174][ T650] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 50.428493][ T650] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 50.428831][ T650] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 50.429156][ T650] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 50.429474][ T650] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 50.429893][ T650] ___sys_sendmsg (net/socket.c:2670) 
[ 50.430218][ T650] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 50.430537][ T650] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 50.430872][ T650] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 50.431190][ T650] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 50.431513][ T650] ? __handle_mm_fault (mm/memory.c:6212) 
[ 50.431847][ T650] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 50.432164][ T650] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 50.432509][ T650] __sys_sendmsg (net/socket.c:2700) 
[ 50.432841][ T650] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 50.433160][ T650] ? exc_page_fault (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:151 arch/x86/mm/fault.c:1484 arch/x86/mm/fault.c:1532) 
[ 50.433487][ T650] ? do_user_addr_fault (./arch/x86/include/asm/atomic.h:93 ./include/linux/atomic/atomic-arch-fallback.h:949 ./include/linux/atomic/atomic-instrumented.h:401 ./include/linux/refcount.h:389 ./include/linux/refcount.h:432 ./include/linux/mmap_lock.h:142 ./include/linux/mmap_lock.h:237 arch/x86/mm/fault.c:1338) 
[ 50.433809][ T650] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 50.434146][ T650] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 50.434470][ T650] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   50.434882][  T650] RIP: 0033:0x7fc100b401e7
[ 50.435216][ T650] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  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 2e 00 00 00       	mov    $0x2e,%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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

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:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   50.436332][  T650] RSP: 002b:00007ffce6b2d388 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   50.436810][  T650] RAX: ffffffffffffffda RBX: 00007ffce6b2dab0 RCX: 00007fc100b401e7
[   50.437295][  T650] RDX: 0000000000000000 RSI: 00007ffce6b2d3f0 RDI: 0000000000000005
[   50.437790][  T650] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   50.438276][  T650] R10: 00007fc100a386f8 R11: 0000000000000246 R12: 00007ffce6b2dae0


Finger prints:
netif_set_mtu_ext:netif_set_mtu:dev_set_mtu:ip_tunnel_newlink:ipgre_newlink