======================================
| [   15.501326][  T270] ip_gre: GRE over IPv4 tunneling driver
| [   15.595842][  T269] ------------[ cut here ]------------
| [ 15.596294][ T269] WARNING: CPU: 0 PID: 269 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) 
| [   15.597077][  T269] Modules linked in: ip_gre gre
[   15.598017][  T269] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 15.598404][ T269] 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) 
[ 15.598729][ T269] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   15.599834][  T269] RSP: 0018:ffffc90000cc7000 EFLAGS: 00010246
[   15.600226][  T269] RAX: 0000000000000000 RBX: ffff88800eaec000 RCX: 0000000000000001
[   15.600695][  T269] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   15.601155][  T269] RBP: ffffc90000cc70e8 R08: ffff88800eaec218 R09: 0000000000000000
[   15.601634][  T269] R10: ffffc90000cc7118 R11: ffff888007e595f0 R12: 1ffff92000198e04
[   15.602177][  T269] R13: 000000000000ffe7 R14: ffffc90000cc7118 R15: ffff88800eaec218
[   15.602650][  T269] FS:  00007f54e6fb3800(0000) GS:ffff8880b1599000(0000) knlGS:0000000000000000
[   15.603213][  T269] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   15.603701][  T269] CR2: 0000558c29c3e050 CR3: 000000000f5b6002 CR4: 0000000000772ef0
[   15.604165][  T269] PKRU: 55555554
[   15.604396][  T269] Call Trace:
[   15.604632][  T269]  <TASK>
[ 15.604796][ T269] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 15.608105][ T269] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 15.608418][ T269] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 15.608734][ T269] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 15.609050][ T269] netif_set_mtu (net/core/dev.c:9652) 
[ 15.609358][ T269] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 15.609687][ T269] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 15.609923][ T269] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 15.610229][ T269] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 15.610556][ T269] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 15.610867][ T269] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 15.611245][ T269] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 15.611566][ T269] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 15.611878][ T269] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 15.612185][ T269] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 15.612496][ T269] ? __dev_get_by_name (net/core/dev.c:865) 
[ 15.612811][ T269] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 15.613125][ T269] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 15.613435][ T269] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 15.613744][ T269] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 15.614058][ T269] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 15.614372][ T269] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 15.614690][ T269] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 15.619501][ T269] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 15.619819][ T269] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 15.620132][ T269] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 15.620437][ T269] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 15.620754][ T269] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 15.621064][ T269] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.621373][ T269] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 15.621688][ T269] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 15.622438][ T269] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 15.622763][ T269] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 15.623541][ T269] ? 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) 
[ 15.623864][ T269] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 15.624180][ T269] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 15.624491][ T269] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 15.624804][ T269] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 15.625113][ T269] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 15.625415][ T269] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 15.625734][ T269] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 15.626040][ T269] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 15.626343][ T269] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 15.626751][ T269] ___sys_sendmsg (net/socket.c:2670) 
[ 15.627058][ T269] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 15.627366][ T269] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 15.627685][ T269] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 15.627992][ T269] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 15.628326][ T269] ? __handle_mm_fault (mm/memory.c:6212) 
[ 15.628641][ T269] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 15.628959][ T269] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 15.629290][ T269] __sys_sendmsg (net/socket.c:2700) 
[ 15.629656][ T269] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 15.629962][ T269] ? 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) 
[ 15.630277][ T269] ? 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) 
[ 15.630616][ T269] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 15.630940][ T269] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 15.631252][ T269] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   15.631665][  T269] RIP: 0033:0x7f54e71801e7
[ 15.632006][ T269] Code: Unable to access opcode bytes at 0x7f54e71801bd.

Code starting with the faulting instruction
===========================================
[   15.632411][  T269] RSP: 002b:00007ffe83299618 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   15.632886][  T269] RAX: ffffffffffffffda RBX: 00007ffe83299d40 RCX: 00007f54e71801e7
[   15.633379][  T269] RDX: 0000000000000000 RSI: 00007ffe83299680 RDI: 0000000000000005
[   15.633848][  T269] RBP: 0000000000000004 R08: 00000000000000b4 R09: 0000000000000000
[   15.634306][  T269] R10: 00007f54e70786f8 R11: 0000000000000246 R12: 00007ffe83299d70
[   15.635017][  T269] R13: 00000000686e2c08 R14: 0000000000499600 R15: 00007ffe83299770
| [   17.095552][  T293] ------------[ cut here ]------------
| [ 17.095967][ T293] WARNING: CPU: 3 PID: 293 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) 
| [   17.097457][  T293] Modules linked in: ip_gre gre
| [   17.098405][  T293] Tainted: [W]=WARN
[   17.098650][  T293] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 17.099042][ T293] 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) 
[ 17.099358][ T293] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   17.100460][  T293] RSP: 0018:ffffc90000567000 EFLAGS: 00010246
[   17.100858][  T293] RAX: 0000000000000000 RBX: ffff888008604000 RCX: 0000000000000001
[   17.101309][  T293] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   17.101779][  T293] RBP: ffffc900005670e8 R08: ffff888008604218 R09: 0000000000000000
[   17.102244][  T293] R10: ffffc90000567118 R11: ffffffffb5c9be78 R12: 1ffff920000ace04
[   17.102714][  T293] R13: 000000000000ffe7 R14: ffffc90000567118 R15: ffff888008604218
[   17.103185][  T293] FS:  00007f325dfd5800(0000) GS:ffff8880b1719000(0000) knlGS:0000000000000000
[   17.103727][  T293] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   17.104116][  T293] CR2: 0000000000436890 CR3: 000000000b781001 CR4: 0000000000772ef0
[   17.104585][  T293] PKRU: 55555554
[   17.104814][  T293] Call Trace:
[   17.105040][  T293]  <TASK>
[ 17.105193][ T293] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 17.105582][ T293] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 17.105894][ T293] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 17.106203][ T293] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 17.106534][ T293] netif_set_mtu (net/core/dev.c:9652) 
[ 17.106841][ T293] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 17.107162][ T293] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 17.107394][ T293] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 17.107711][ T293] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 17.108022][ T293] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 17.108330][ T293] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 17.108719][ T293] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 17.109034][ T293] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 17.109341][ T293] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 17.109656][ T293] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 17.109957][ T293] ? __dev_get_by_name (net/core/dev.c:865) 
[ 17.110262][ T293] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 17.110577][ T293] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 17.110891][ T293] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 17.111190][ T293] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 17.111508][ T293] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 17.111823][ T293] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 17.112132][ T293] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 17.112446][ T293] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 17.112754][ T293] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 17.113071][ T293] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 17.113373][ T293] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 17.113684][ T293] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 17.113992][ T293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.114298][ T293] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 17.114609][ T293] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 17.114913][ T293] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 17.115225][ T293] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 17.115538][ T293] ? 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) 
[ 17.115843][ T293] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 17.116147][ T293] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 17.116450][ T293] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 17.116767][ T293] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 17.117072][ T293] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 17.117376][ T293] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 17.117700][ T293] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 17.118006][ T293] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 17.118305][ T293] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 17.118716][ T293] ___sys_sendmsg (net/socket.c:2670) 
[ 17.119023][ T293] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 17.119324][ T293] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 17.119641][ T293] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 17.119948][ T293] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 17.120257][ T293] ? __handle_mm_fault (mm/memory.c:6212) 
[ 17.120569][ T293] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 17.120872][ T293] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 17.121197][ T293] __sys_sendmsg (net/socket.c:2700) 
[ 17.121506][ T293] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 17.121816][ T293] ? 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) 
[ 17.122129][ T293] ? 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) 
[ 17.122432][ T293] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 17.122747][ T293] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 17.123068][ T293] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   17.123447][  T293] RIP: 0033:0x7f325e1a21e7
[ 17.123771][ T293] 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)
[   17.124873][  T293] RSP: 002b:00007fff995538c8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   17.125336][  T293] RAX: ffffffffffffffda RBX: 00007fff99553ff0 RCX: 00007f325e1a21e7
[   17.125797][  T293] RDX: 0000000000000000 RSI: 00007fff99553930 RDI: 0000000000000005
[   17.126259][  T293] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[   17.126719][  T293] R10: 00007f325e09a6f8 R11: 0000000000000246 R12: 00007fff99554020
[   17.127176][  T293] R13: 00000000686e2c0a R14: 0000000000499600 R15: 00007fff99553a20
| [   18.511880][  T309] ------------[ cut here ]------------
| [ 18.512269][ T309] WARNING: CPU: 2 PID: 309 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) 
| [   18.512904][  T309] Modules linked in: ip_gre gre
| [   18.513886][  T309] Tainted: [W]=WARN
[   18.514130][  T309] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 18.514530][ T309] 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) 
[ 18.514855][ T309] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   18.515960][  T309] RSP: 0018:ffffc90000647000 EFLAGS: 00010246
[   18.516360][  T309] RAX: 0000000000000000 RBX: ffff88800e229000 RCX: 0000000000000001
[   18.516837][  T309] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   18.517322][  T309] RBP: ffffc900006470e8 R08: ffff88800e229218 R09: 0000000000000000
[   18.517802][  T309] R10: ffffc90000647118 R11: ffff88800e229000 R12: 1ffff920000c8e04
[   18.518273][  T309] R13: 00000000000005c4 R14: ffffc90000647118 R15: ffff88800e229218
[   18.518756][  T309] FS:  00007f3fc375c800(0000) GS:ffff8880b1699000(0000) knlGS:0000000000000000
[   18.519331][  T309] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   18.519739][  T309] CR2: 0000000000436890 CR3: 000000000b96d006 CR4: 0000000000772ef0
[   18.520209][  T309] PKRU: 55555554
[   18.520451][  T309] Call Trace:
[   18.520701][  T309]  <TASK>
[ 18.520870][ T309] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 18.521203][ T309] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 18.521529][ T309] ? packet_notifier (net/packet/af_packet.c:4286) 
[ 18.521857][ T309] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 18.522181][ T309] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 18.522514][ T309] netif_set_mtu (net/core/dev.c:9652) 
[ 18.522829][ T309] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 18.523161][ T309] ? __pfx_register_netdevice (net/core/dev.c:11036) 
[ 18.523493][ T309] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 18.523737][ T309] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 18.524058][ T309] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 18.524399][ T309] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 18.524755][ T309] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 18.525152][ T309] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 18.525487][ T309] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 18.525817][ T309] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 18.526130][ T309] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 18.526434][ T309] ? __dev_get_by_name (net/core/dev.c:865) 
[ 18.526755][ T309] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 18.527088][ T309] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 18.527411][ T309] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 18.527740][ T309] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 18.528078][ T309] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 18.528395][ T309] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 18.528750][ T309] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.529079][ T309] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 18.529394][ T309] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 18.529720][ T309] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 18.530043][ T309] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 18.530362][ T309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.530702][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.531015][ T309] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 18.531324][ T309] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 18.531643][ T309] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 18.531961][ T309] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 18.532273][ T309] ? 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) 
[ 18.532608][ T309] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 18.532929][ T309] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 18.533249][ T309] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 18.533583][ T309] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 18.533903][ T309] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 18.534230][ T309] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 18.534552][ T309] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 18.534869][ T309] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 18.535177][ T309] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 18.535601][ T309] ___sys_sendmsg (net/socket.c:2670) 
[ 18.535923][ T309] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 18.536240][ T309] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 18.536567][ T309] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 18.536885][ T309] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 18.537204][ T309] ? __handle_mm_fault (mm/memory.c:6212) 
[ 18.537530][ T309] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 18.537850][ T309] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 18.538200][ T309] __sys_sendmsg (net/socket.c:2700) 
[ 18.538529][ T309] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 18.538851][ T309] ? 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) 
[ 18.539177][ T309] ? 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) 
[ 18.539508][ T309] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 18.539819][ T309] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 18.540134][ T309] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   18.540539][  T309] RIP: 0033:0x7f3fc39291e7
[ 18.540868][ T309] 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)
[   18.541991][  T309] RSP: 002b:00007ffede53e198 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   18.542460][  T309] RAX: ffffffffffffffda RBX: 00007ffede53e8c0 RCX: 00007f3fc39291e7
[   18.542944][  T309] RDX: 0000000000000000 RSI: 00007ffede53e200 RDI: 0000000000000005
[   18.543435][  T309] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[   18.543910][  T309] R10: 00007f3fc38216f8 R11: 0000000000000246 R12: 00007ffede53e8f0
[   18.544384][  T309] R13: 00000000686e2c0c R14: 0000000000499600 R15: 00007ffede53e2f0
| [   19.902373][  T325] ------------[ cut here ]------------
| [ 19.902767][ T325] WARNING: CPU: 2 PID: 325 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) 
| [   19.903394][  T325] Modules linked in: ip_gre gre
| [   19.904380][  T325] Tainted: [W]=WARN
[   19.904639][  T325] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 19.905031][ T325] 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) 
[ 19.905363][ T325] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   19.906482][  T325] RSP: 0018:ffffc900007b7000 EFLAGS: 00010246
[   19.906882][  T325] RAX: 0000000000000000 RBX: ffff88800b284000 RCX: 0000000000000001
[   19.907357][  T325] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   19.907837][  T325] RBP: ffffc900007b70e8 R08: ffff88800b284218 R09: 0000000000000000
[   19.908311][  T325] R10: ffffc900007b7118 R11: ffff888007e595f0 R12: 1ffff920000f6e04
[   19.908788][  T325] R13: 000000000000ffe7 R14: ffffc900007b7118 R15: ffff88800b284218
[   19.909264][  T325] FS:  00007f56e052f800(0000) GS:ffff8880b1699000(0000) knlGS:0000000000000000
[   19.909814][  T325] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   19.910211][  T325] CR2: 0000000000436890 CR3: 000000000c204001 CR4: 0000000000772ef0
[   19.910698][  T325] PKRU: 55555554
[   19.910940][  T325] Call Trace:
[   19.911181][  T325]  <TASK>
[ 19.911349][ T325] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 19.911758][ T325] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 19.912079][ T325] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 19.912399][ T325] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 19.912735][ T325] netif_set_mtu (net/core/dev.c:9652) 
[ 19.913060][ T325] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 19.913393][ T325] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 19.913649][ T325] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 19.913972][ T325] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 19.914297][ T325] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 19.914633][ T325] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 19.915025][ T325] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 19.915353][ T325] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 19.915685][ T325] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 19.916013][ T325] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 19.916328][ T325] ? __dev_get_by_name (net/core/dev.c:865) 
[ 19.916657][ T325] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 19.916972][ T325] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 19.917299][ T325] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 19.917639][ T325] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 19.917965][ T325] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 19.918294][ T325] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 19.918633][ T325] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.918963][ T325] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 19.919278][ T325] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 19.919634][ T325] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 19.919956][ T325] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 19.920274][ T325] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.920610][ T325] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.920933][ T325] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 19.921259][ T325] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 19.921588][ T325] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 19.921918][ T325] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 19.922233][ T325] ? 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) 
[ 19.922566][ T325] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 19.922890][ T325] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 19.923228][ T325] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 19.923564][ T325] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 19.923887][ T325] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 19.924217][ T325] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 19.924544][ T325] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 19.924856][ T325] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 19.925162][ T325] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 19.925567][ T325] ___sys_sendmsg (net/socket.c:2670) 
[ 19.925887][ T325] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 19.926199][ T325] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 19.926528][ T325] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 19.926863][ T325] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 19.927182][ T325] ? __handle_mm_fault (mm/memory.c:6212) 
[ 19.927511][ T325] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 19.927830][ T325] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 19.928173][ T325] __sys_sendmsg (net/socket.c:2700) 
[ 19.928502][ T325] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 19.928821][ T325] ? 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) 
[ 19.929145][ T325] ? 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) 
[ 19.929474][ T325] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 19.929808][ T325] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 19.930136][ T325] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   19.930541][  T325] RIP: 0033:0x7f56e06fc1e7
[ 19.930875][ T325] 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)
[   19.931993][  T325] RSP: 002b:00007ffea0c7e838 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   19.932495][  T325] RAX: ffffffffffffffda RBX: 00007ffea0c7ef60 RCX: 00007f56e06fc1e7
[   19.932974][  T325] RDX: 0000000000000000 RSI: 00007ffea0c7e8a0 RDI: 0000000000000005
[   19.933448][  T325] RBP: 0000000000000004 R08: 00000000000000b4 R09: 0000000000000000
[   19.933930][  T325] R10: 00007f56e05f46f8 R11: 0000000000000246 R12: 00007ffea0c7ef90
[   19.934411][  T325] R13: 00000000686e2c0d R14: 0000000000499600 R15: 00007ffea0c7e990
| [   21.371815][  T341] ------------[ cut here ]------------
| [ 21.372240][ T341] WARNING: CPU: 0 PID: 341 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) 
| [   21.372857][  T341] Modules linked in: ip_gre gre
| [   21.373828][  T341] Tainted: [W]=WARN
[   21.374061][  T341] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 21.374440][ T341] 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) 
[ 21.374762][ T341] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   21.375858][  T341] RSP: 0018:ffffc90000827000 EFLAGS: 00010246
[   21.376247][  T341] RAX: 0000000000000000 RBX: ffff88800e199000 RCX: 0000000000000001
[   21.376707][  T341] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   21.377161][  T341] RBP: ffffc900008270e8 R08: ffff88800e199218 R09: 0000000000000000
[   21.377638][  T341] R10: ffffc90000827118 R11: ffffffffb9d8d1e0 R12: 1ffff92000104e04
[   21.378102][  T341] R13: 000000000000ffe7 R14: ffffc90000827118 R15: ffff88800e199218
[   21.378569][  T341] FS:  00007ff73f1c3800(0000) GS:ffff8880b1599000(0000) knlGS:0000000000000000
[   21.379109][  T341] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.379502][  T341] CR2: 0000000000436890 CR3: 00000000091ae001 CR4: 0000000000772ef0
[   21.379961][  T341] PKRU: 55555554
[   21.380190][  T341] Call Trace:
[   21.380420][  T341]  <TASK>
[ 21.380583][ T341] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 21.380976][ T341] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 21.381286][ T341] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 21.381610][ T341] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 21.381925][ T341] netif_set_mtu (net/core/dev.c:9652) 
[ 21.382229][ T341] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 21.382557][ T341] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 21.382791][ T341] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 21.383106][ T341] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 21.383419][ T341] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 21.383736][ T341] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 21.384116][ T341] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 21.384430][ T341] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 21.384751][ T341] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 21.385060][ T341] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 21.385364][ T341] ? __dev_get_by_name (net/core/dev.c:865) 
[ 21.385686][ T341] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 21.385999][ T341] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 21.386308][ T341] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 21.386620][ T341] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 21.386940][ T341] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 21.387256][ T341] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 21.387573][ T341] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.387890][ T341] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 21.388192][ T341] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.388509][ T341] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.388818][ T341] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 21.389124][ T341] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.389435][ T341] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.389764][ T341] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 21.390078][ T341] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.390384][ T341] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 21.390724][ T341] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 21.391029][ T341] ? 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) 
[ 21.391343][ T341] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 21.391673][ T341] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 21.391984][ T341] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.392293][ T341] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 21.392611][ T341] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 21.392917][ T341] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 21.393238][ T341] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 21.393560][ T341] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 21.393865][ T341] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 21.394266][ T341] ___sys_sendmsg (net/socket.c:2670) 
[ 21.394586][ T341] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 21.394894][ T341] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 21.395200][ T341] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 21.395509][ T341] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 21.395817][ T341] ? __handle_mm_fault (mm/memory.c:6212) 
[ 21.396126][ T341] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 21.396426][ T341] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 21.396760][ T341] __sys_sendmsg (net/socket.c:2700) 
[ 21.397065][ T341] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 21.397368][ T341] ? 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) 
[ 21.397693][ T341] ? 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) 
[ 21.398002][ T341] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.398313][ T341] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 21.398628][ T341] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   21.399005][  T341] RIP: 0033:0x7ff73f3901e7
[ 21.399320][ T341] 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)
[   21.400406][  T341] RSP: 002b:00007ffddf7291a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   21.400879][  T341] RAX: ffffffffffffffda RBX: 00007ffddf7298d0 RCX: 00007ff73f3901e7
[   21.401334][  T341] RDX: 0000000000000000 RSI: 00007ffddf729210 RDI: 0000000000000005
[   21.401800][  T341] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[   21.402256][  T341] R10: 00007ff73f2886f8 R11: 0000000000000246 R12: 00007ffddf729900
[   21.402719][  T341] R13: 00000000686e2c0e R14: 0000000000499600 R15: 00007ffddf729300
| [   22.778547][  T357] ------------[ cut here ]------------
| [ 22.778988][ T357] WARNING: CPU: 2 PID: 357 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) 
| [   22.779620][  T357] Modules linked in: ip_gre gre
| [   22.780583][  T357] Tainted: [W]=WARN
[   22.780823][  T357] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 22.781214][ T357] 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) 
[ 22.781542][ T357] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   22.782612][  T357] RSP: 0018:ffffc90000917000 EFLAGS: 00010246
[   22.783033][  T357] RAX: 0000000000000000 RBX: ffff888002b44000 RCX: 0000000000000001
[   22.783520][  T357] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   22.783991][  T357] RBP: ffffc900009170e8 R08: ffff888002b44218 R09: 0000000000000000
[   22.784460][  T357] R10: ffffc90000917118 R11: ffff888002b44000 R12: 1ffff92000122e04
[   22.784950][  T357] R13: 00000000000005c4 R14: ffffc90000917118 R15: ffff888002b44218
[   22.785403][  T357] FS:  00007f0373c37800(0000) GS:ffff8880b1699000(0000) knlGS:0000000000000000
[   22.785946][  T357] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.786335][  T357] CR2: 0000000000436890 CR3: 00000000027bc002 CR4: 0000000000772ef0
[   22.786799][  T357] PKRU: 55555554
[   22.787039][  T357] Call Trace:
[   22.787271][  T357]  <TASK>
[ 22.787435][ T357] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 22.787769][ T357] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 22.788084][ T357] ? packet_notifier (net/packet/af_packet.c:4286) 
[ 22.788394][ T357] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 22.788713][ T357] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 22.789027][ T357] netif_set_mtu (net/core/dev.c:9652) 
[ 22.789339][ T357] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 22.789666][ T357] ? __pfx_register_netdevice (net/core/dev.c:11036) 
[ 22.789977][ T357] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 22.790215][ T357] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 22.790532][ T357] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 22.790850][ T357] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 22.791164][ T357] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 22.791569][ T357] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 22.791893][ T357] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 22.792207][ T357] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 22.792528][ T357] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 22.792837][ T357] ? __dev_get_by_name (net/core/dev.c:865) 
[ 22.793176][ T357] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 22.793503][ T357] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 22.793825][ T357] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 22.794140][ T357] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 22.794475][ T357] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 22.794814][ T357] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 22.795138][ T357] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.795485][ T357] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 22.795800][ T357] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.796120][ T357] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.796436][ T357] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 22.796787][ T357] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.797100][ T357] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.797413][ T357] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 22.797731][ T357] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.798041][ T357] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 22.798361][ T357] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 22.798681][ T357] ? 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) 
[ 22.798993][ T357] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 22.799304][ T357] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 22.799630][ T357] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.799954][ T357] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 22.800265][ T357] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 22.800581][ T357] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 22.800938][ T357] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 22.801249][ T357] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 22.801586][ T357] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 22.801998][ T357] ___sys_sendmsg (net/socket.c:2670) 
[ 22.802309][ T357] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 22.802624][ T357] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 22.802936][ T357] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 22.803322][ T357] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 22.803670][ T357] ? __handle_mm_fault (mm/memory.c:6212) 
[ 22.803990][ T357] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 22.804316][ T357] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 22.804656][ T357] __sys_sendmsg (net/socket.c:2700) 
[ 22.804969][ T357] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 22.805276][ T357] ? 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) 
[ 22.805608][ T357] ? 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) 
[ 22.805918][ T357] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.806232][ T357] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 22.806552][ T357] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   22.806933][  T357] RIP: 0033:0x7f0373e041e7
[ 22.807250][ T357] 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)
[   22.808342][  T357] RSP: 002b:00007ffdb2d04ab8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   22.808818][  T357] RAX: ffffffffffffffda RBX: 00007ffdb2d051e0 RCX: 00007f0373e041e7
[   22.809278][  T357] RDX: 0000000000000000 RSI: 00007ffdb2d04b20 RDI: 0000000000000005
[   22.809744][  T357] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[   22.810204][  T357] R10: 00007f0373cfc6f8 R11: 0000000000000246 R12: 00007ffdb2d05210
[   22.810671][  T357] R13: 00000000686e2c10 R14: 0000000000499600 R15: 00007ffdb2d04c10
| [   24.210417][  T373] ------------[ cut here ]------------
| [ 24.211332][ T373] WARNING: CPU: 2 PID: 373 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) 
| [   24.211984][  T373] Modules linked in: ip_gre gre
| [   24.212994][  T373] Tainted: [W]=WARN
[   24.213238][  T373] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.213655][ T373] 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) 
[ 24.213983][ T373] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   24.215111][  T373] RSP: 0018:ffffc90000847000 EFLAGS: 00010246
[   24.215511][  T373] RAX: 0000000000000000 RBX: ffff88800bcf1000 RCX: 0000000000000001
[   24.215969][  T373] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   24.216427][  T373] RBP: ffffc900008470e8 R08: ffff88800bcf1218 R09: 0000000000000000
[   24.216926][  T373] R10: ffffc90000847118 R11: ffffffffb9d8d1e0 R12: 1ffff92000108e04
[   24.217393][  T373] R13: 000000000000ffe7 R14: ffffc90000847118 R15: ffff88800bcf1218
[   24.217891][  T373] FS:  00007f473bddf800(0000) GS:ffff8880b1699000(0000) knlGS:0000000000000000
[   24.218457][  T373] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.218867][  T373] CR2: 0000000000436890 CR3: 000000000b1c5001 CR4: 0000000000772ef0
[   24.219343][  T373] PKRU: 55555554
[   24.219586][  T373] Call Trace:
[   24.219820][  T373]  <TASK>
[ 24.219982][ T373] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 24.220366][ T373] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 24.220686][ T373] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 24.220997][ T373] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 24.221321][ T373] netif_set_mtu (net/core/dev.c:9652) 
[ 24.221652][ T373] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 24.221985][ T373] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 24.222223][ T373] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 24.222558][ T373] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 24.222896][ T373] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 24.223225][ T373] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 24.223636][ T373] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 24.223962][ T373] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 24.224293][ T373] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 24.224614][ T373] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 24.224922][ T373] ? __dev_get_by_name (net/core/dev.c:865) 
[ 24.225232][ T373] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 24.225567][ T373] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 24.225891][ T373] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 24.226202][ T373] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 24.226528][ T373] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 24.226851][ T373] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 24.227165][ T373] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.227496][ T373] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 24.227803][ T373] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.228116][ T373] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.228430][ T373] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 24.228748][ T373] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.229061][ T373] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.229374][ T373] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 24.229705][ T373] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.230041][ T373] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 24.230369][ T373] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 24.230696][ T373] ? 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) 
[ 24.231025][ T373] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 24.231365][ T373] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 24.231689][ T373] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.232003][ T373] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 24.232318][ T373] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 24.232637][ T373] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 24.232963][ T373] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 24.233300][ T373] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 24.233636][ T373] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 24.234041][ T373] ___sys_sendmsg (net/socket.c:2670) 
[ 24.234372][ T373] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 24.234691][ T373] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 24.235009][ T373] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 24.235322][ T373] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 24.235647][ T373] ? __handle_mm_fault (mm/memory.c:6212) 
[ 24.235957][ T373] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 24.236266][ T373] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 24.236602][ T373] __sys_sendmsg (net/socket.c:2700) 
[ 24.236913][ T373] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 24.237227][ T373] ? 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) 
[ 24.237566][ T373] ? 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) 
[ 24.237884][ T373] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.238197][ T373] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 24.238516][ T373] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.238896][  T373] RIP: 0033:0x7f473bfac1e7
[ 24.239214][ T373] 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)
[   24.240295][  T373] RSP: 002b:00007fffd213fe38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.240765][  T373] RAX: ffffffffffffffda RBX: 00007fffd2140560 RCX: 00007f473bfac1e7
[   24.241218][  T373] RDX: 0000000000000000 RSI: 00007fffd213fea0 RDI: 0000000000000005
[   24.241700][  T373] RBP: 0000000000000004 R08: 00000000000000b4 R09: 0000000000000000
[   24.242195][  T373] R10: 00007f473bea46f8 R11: 0000000000000246 R12: 00007fffd2140590
[   24.242674][  T373] R13: 00000000686e2c11 R14: 0000000000499600 R15: 00007fffd213ff90
| [   25.813919][  T390] ------------[ cut here ]------------
| [ 25.814332][ T390] WARNING: CPU: 2 PID: 390 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) 
| [   25.814992][  T390] Modules linked in: ip_gre gre
| [   25.815967][  T390] Tainted: [W]=WARN
[   25.816213][  T390] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.816612][ T390] 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) 
[ 25.816937][ T390] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   25.818041][  T390] RSP: 0018:ffffc90000b17000 EFLAGS: 00010246
[   25.818427][  T390] RAX: 0000000000000000 RBX: ffff88800e199000 RCX: 0000000000000001
[   25.818892][  T390] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   25.819351][  T390] RBP: ffffc90000b170e8 R08: ffff88800e199218 R09: 0000000000000000
[   25.819843][  T390] R10: ffffc90000b17118 R11: ffffffffb9d8d1e0 R12: 1ffff92000162e04
[   25.820313][  T390] R13: 000000000000ffe7 R14: ffffc90000b17118 R15: ffff88800e199218
[   25.820799][  T390] FS:  00007f48de997800(0000) GS:ffff8880b1699000(0000) knlGS:0000000000000000
[   25.821337][  T390] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.821740][  T390] CR2: 0000000000436890 CR3: 0000000009495006 CR4: 0000000000772ef0
[   25.822200][  T390] PKRU: 55555554
[   25.822454][  T390] Call Trace:
[   25.822704][  T390]  <TASK>
[ 25.822874][ T390] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 25.823285][ T390] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 25.823620][ T390] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 25.823939][ T390] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 25.824309][ T390] netif_set_mtu (net/core/dev.c:9652) 
[ 25.824653][ T390] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 25.824989][ T390] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 25.825233][ T390] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 25.825564][ T390] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 25.825901][ T390] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 25.826218][ T390] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 25.826614][ T390] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 25.826935][ T390] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 25.827247][ T390] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 25.827571][ T390] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 25.827880][ T390] ? __dev_get_by_name (net/core/dev.c:865) 
[ 25.828192][ T390] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 25.828510][ T390] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 25.828823][ T390] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 25.829131][ T390] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 25.829447][ T390] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 25.829798][ T390] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 25.830119][ T390] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.830451][ T390] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 25.830794][ T390] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.831108][ T390] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.831416][ T390] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 25.831735][ T390] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.832071][ T390] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.832398][ T390] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 25.832728][ T390] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.833063][ T390] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 25.833394][ T390] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 25.833732][ T390] ? 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) 
[ 25.834051][ T390] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 25.834381][ T390] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 25.834726][ T390] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.835059][ T390] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 25.835386][ T390] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 25.835723][ T390] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 25.836061][ T390] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 25.836374][ T390] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 25.836698][ T390] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 25.837093][ T390] ___sys_sendmsg (net/socket.c:2670) 
[ 25.837409][ T390] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 25.837733][ T390] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 25.838051][ T390] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 25.838362][ T390] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 25.838688][ T390] ? __handle_mm_fault (mm/memory.c:6212) 
[ 25.839001][ T390] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 25.839310][ T390] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 25.839674][ T390] __sys_sendmsg (net/socket.c:2700) 
[ 25.839994][ T390] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 25.840311][ T390] ? 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) 
[ 25.840649][ T390] ? 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) 
[ 25.840981][ T390] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.841317][ T390] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 25.841656][ T390] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.842050][  T390] RIP: 0033:0x7f48deb641e7
[ 25.842378][ T390] 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)
[   25.843494][  T390] RSP: 002b:00007ffff67e1be8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   25.843971][  T390] RAX: ffffffffffffffda RBX: 00007ffff67e2310 RCX: 00007f48deb641e7
[   25.844443][  T390] RDX: 0000000000000000 RSI: 00007ffff67e1c50 RDI: 0000000000000005
[   25.844921][  T390] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[   25.845392][  T390] R10: 00007f48dea5c6f8 R11: 0000000000000246 R12: 00007ffff67e2340
[   25.845899][  T390] R13: 00000000686e2c13 R14: 0000000000499600 R15: 00007ffff67e1d40
| [   27.377182][  T407] ------------[ cut here ]------------
| [ 27.377619][ T407] WARNING: CPU: 0 PID: 407 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) 
| [   27.378227][  T407] Modules linked in: ip_gre gre
| [   27.379182][  T407] Tainted: [W]=WARN
[   27.379414][  T407] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 27.381330][ T407] 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) 
[ 27.381675][ T407] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   27.382774][  T407] RSP: 0018:ffffc90000cb7000 EFLAGS: 00010246
[   27.383176][  T407] RAX: 0000000000000000 RBX: ffff88800b8e1000 RCX: 0000000000000001
[   27.383649][  T407] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   27.384110][  T407] RBP: ffffc90000cb70e8 R08: ffff88800b8e1218 R09: 0000000000000000
[   27.384575][  T407] R10: ffffc90000cb7118 R11: ffff88800b8e1000 R12: 1ffff92000196e04
[   27.385032][  T407] R13: 00000000000005c4 R14: ffffc90000cb7118 R15: ffff88800b8e1218
[   27.385495][  T407] FS:  00007f0104caf800(0000) GS:ffff8880b1599000(0000) knlGS:0000000000000000
[   27.386033][  T407] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   27.386419][  T407] CR2: 0000000000436890 CR3: 000000001f363002 CR4: 0000000000772ef0
[   27.386886][  T407] PKRU: 55555554
[   27.387115][  T407] Call Trace:
[   27.387346][  T407]  <TASK>
[ 27.387511][ T407] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 27.387830][ T407] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 27.388136][ T407] ? packet_notifier (net/packet/af_packet.c:4286) 
[ 27.388443][ T407] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 27.388760][ T407] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 27.389071][ T407] netif_set_mtu (net/core/dev.c:9652) 
[ 27.389376][ T407] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 27.389698][ T407] ? __pfx_register_netdevice (net/core/dev.c:11036) 
[ 27.390013][ T407] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 27.390249][ T407] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 27.390567][ T407] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 27.390878][ T407] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 27.391186][ T407] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 27.391572][ T407] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 27.391884][ T407] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 27.392195][ T407] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 27.392507][ T407] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 27.392809][ T407] ? __dev_get_by_name (net/core/dev.c:865) 
[ 27.393157][ T407] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 27.393459][ T407] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 27.393781][ T407] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 27.394085][ T407] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 27.394401][ T407] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 27.394733][ T407] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 27.395046][ T407] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.395362][ T407] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 27.395673][ T407] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 27.395983][ T407] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 27.396289][ T407] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 27.396606][ T407] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.396925][ T407] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.397238][ T407] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 27.397555][ T407] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 27.397865][ T407] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 27.398184][ T407] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 27.398496][ T407] ? 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) 
[ 27.398804][ T407] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 27.399119][ T407] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 27.399423][ T407] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 27.399743][ T407] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 27.400057][ T407] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 27.400364][ T407] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 27.400687][ T407] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 27.400999][ T407] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 27.401310][ T407] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 27.401712][ T407] ___sys_sendmsg (net/socket.c:2670) 
[ 27.402019][ T407] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 27.402325][ T407] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 27.402640][ T407] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 27.402949][ T407] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 27.403280][ T407] ? __handle_mm_fault (mm/memory.c:6212) 
[ 27.403603][ T407] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 27.403909][ T407] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 27.404237][ T407] __sys_sendmsg (net/socket.c:2700) 
[ 27.404560][ T407] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 27.404865][ T407] ? 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) 
[ 27.405176][ T407] ? 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) 
[ 27.405496][ T407] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 27.405815][ T407] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 27.406122][ T407] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   27.406530][  T407] RIP: 0033:0x7f0104e7c1e7
[ 27.406851][ T407] 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)
[   27.407963][  T407] RSP: 002b:00007ffe36b906e8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   27.408426][  T407] RAX: ffffffffffffffda RBX: 00007ffe36b90e10 RCX: 00007f0104e7c1e7
[   27.408895][  T407] RDX: 0000000000000000 RSI: 00007ffe36b90750 RDI: 0000000000000005
[   27.409351][  T407] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[   27.409827][  T407] R10: 00007f0104d746f8 R11: 0000000000000246 R12: 00007ffe36b90e40
[   27.410289][  T407] R13: 00000000686e2c14 R14: 0000000000499600 R15: 00007ffe36b90840
| [   28.931882][  T424] ------------[ cut here ]------------
| [ 28.932343][ T424] WARNING: CPU: 2 PID: 424 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) 
| [   28.933001][  T424] Modules linked in: ip_gre gre
| [   28.935164][  T424] Tainted: [W]=WARN
[   28.935419][  T424] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 28.935832][ T424] 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) 
[ 28.936167][ T424] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   28.937290][  T424] RSP: 0018:ffffc90000e27000 EFLAGS: 00010246
[   28.937700][  T424] RAX: 0000000000000000 RBX: ffff88800cf69000 RCX: 0000000000000001
[   28.938176][  T424] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   28.938659][  T424] RBP: ffffc90000e270e8 R08: ffff88800cf69218 R09: 0000000000000000
[   28.939127][  T424] R10: ffffc90000e27118 R11: ffffffffb9d8d1e0 R12: 1ffff920001c4e04
[   28.939604][  T424] R13: 000000000000ffe7 R14: ffffc90000e27118 R15: ffff88800cf69218
[   28.940073][  T424] FS:  00007f53e601f800(0000) GS:ffff8880b1699000(0000) knlGS:0000000000000000
[   28.940630][  T424] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   28.941027][  T424] CR2: 0000000000436890 CR3: 000000000b229005 CR4: 0000000000772ef0
[   28.941506][  T424] PKRU: 55555554
[   28.941750][  T424] Call Trace:
[   28.941990][  T424]  <TASK>
[ 28.942161][ T424] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 28.942570][ T424] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 28.942891][ T424] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 28.943215][ T424] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 28.943552][ T424] netif_set_mtu (net/core/dev.c:9652) 
[ 28.943871][ T424] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 28.944207][ T424] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 28.944458][ T424] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 28.944793][ T424] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 28.945124][ T424] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 28.945448][ T424] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 28.945860][ T424] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 28.946181][ T424] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 28.946528][ T424] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 28.946851][ T424] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 28.947170][ T424] ? __dev_get_by_name (net/core/dev.c:865) 
[ 28.947498][ T424] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 28.947816][ T424] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 28.948138][ T424] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 28.948459][ T424] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 28.948813][ T424] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 28.949150][ T424] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 28.949488][ T424] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 28.949824][ T424] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 28.950145][ T424] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 28.950490][ T424] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 28.950817][ T424] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 28.951125][ T424] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 28.951440][ T424] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.951768][ T424] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 28.952080][ T424] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 28.952389][ T424] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 28.952723][ T424] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 28.953055][ T424] ? 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) 
[ 28.953378][ T424] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 28.953710][ T424] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 28.954035][ T424] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 28.954359][ T424] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 28.954711][ T424] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 28.955043][ T424] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 28.955364][ T424] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 28.955694][ T424] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 28.956011][ T424] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 28.956404][ T424] ___sys_sendmsg (net/socket.c:2670) 
[ 28.956728][ T424] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 28.957040][ T424] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 28.957354][ T424] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 28.957669][ T424] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 28.957987][ T424] ? __handle_mm_fault (mm/memory.c:6212) 
[ 28.958304][ T424] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 28.958645][ T424] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 28.958985][ T424] __sys_sendmsg (net/socket.c:2700) 
[ 28.959304][ T424] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 28.959637][ T424] ? 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) 
[ 28.959971][ T424] ? 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) 
[ 28.960284][ T424] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 28.960610][ T424] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 28.960927][ T424] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   28.961308][  T424] RIP: 0033:0x7f53e61ec1e7
[ 28.961638][ T424] 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)
[   28.962738][  T424] RSP: 002b:00007fff1dcfd6f8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   28.963216][  T424] RAX: ffffffffffffffda RBX: 00007fff1dcfde20 RCX: 00007f53e61ec1e7
[   28.963700][  T424] RDX: 0000000000000000 RSI: 00007fff1dcfd760 RDI: 0000000000000005
[   28.964186][  T424] RBP: 0000000000000004 R08: 00000000000000b4 R09: 0000000000000000
[   28.964665][  T424] R10: 00007f53e60e46f8 R11: 0000000000000246 R12: 00007fff1dcfde50
[   28.965132][  T424] R13: 00000000686e2c16 R14: 0000000000499600 R15: 00007fff1dcfd850
| [   30.793024][  T440] ------------[ cut here ]------------
| [ 30.793457][ T440] WARNING: CPU: 0 PID: 440 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) 
| [   30.794315][  T440] Modules linked in: ip_gre gre
| [   30.795537][  T440] Tainted: [W]=WARN
[   30.795843][  T440] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 30.796409][ T440] 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) 
[ 30.796862][ T440] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   30.798202][  T440] RSP: 0018:ffffc90000757000 EFLAGS: 00010246
[   30.798779][  T440] RAX: 0000000000000000 RBX: ffff88800e6d9000 RCX: 0000000000000001
[   30.799311][  T440] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   30.799913][  T440] RBP: ffffc900007570e8 R08: ffff88800e6d9218 R09: 0000000000000000
[   30.800553][  T440] R10: ffffc90000757118 R11: ffffffffb9d8d1e0 R12: 1ffff920000eae04
[   30.801123][  T440] R13: 000000000000ffe7 R14: ffffc90000757118 R15: ffff88800e6d9218
[   30.801707][  T440] FS:  00007f76a8943800(0000) GS:ffff8880b1599000(0000) knlGS:0000000000000000
[   30.802306][  T440] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   30.802824][  T440] CR2: 0000000000436890 CR3: 000000000f5e7003 CR4: 0000000000772ef0
[   30.803353][  T440] PKRU: 55555554
[   30.803643][  T440] Call Trace:
[   30.803974][  T440]  <TASK>
[ 30.804210][ T440] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 30.804686][ T440] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 30.805111][ T440] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 30.805529][ T440] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 30.805952][ T440] netif_set_mtu (net/core/dev.c:9652) 
[ 30.806297][ T440] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 30.806709][ T440] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 30.807043][ T440] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 30.807454][ T440] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 30.807899][ T440] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 30.808313][ T440] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 30.808799][ T440] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 30.809213][ T440] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 30.809546][ T440] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 30.809957][ T440] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 30.810370][ T440] ? __dev_get_by_name (net/core/dev.c:865) 
[ 30.810759][ T440] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 30.811125][ T440] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 30.811522][ T440] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 30.811885][ T440] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 30.812268][ T440] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 30.812669][ T440] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 30.813121][ T440] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 30.813608][ T440] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 30.814024][ T440] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 30.814512][ T440] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 30.814962][ T440] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 30.815330][ T440] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 30.815764][ T440] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 30.816118][ T440] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 30.816539][ T440] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 30.816966][ T440] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 30.817281][ T440] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 30.817689][ T440] ? 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) 
[ 30.818132][ T440] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 30.818551][ T440] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 30.818929][ T440] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 30.819302][ T440] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 30.819682][ T440] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 30.820034][ T440] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 30.820349][ T440] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 30.820763][ T440] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 30.821149][ T440] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 30.821648][ T440] ___sys_sendmsg (net/socket.c:2670) 
[ 30.822078][ T440] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 30.822498][ T440] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 30.822934][ T440] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 30.823390][ T440] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 30.823782][ T440] ? __handle_mm_fault (mm/memory.c:6212) 
[ 30.824171][ T440] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 30.824643][ T440] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 30.825068][ T440] __sys_sendmsg (net/socket.c:2700) 
[ 30.825450][ T440] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 30.825800][ T440] ? 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) 
[ 30.826177][ T440] ? 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) 
[ 30.826494][ T440] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 30.826963][ T440] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 30.827356][ T440] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   30.827860][  T440] RIP: 0033:0x7f76a8b101e7
[ 30.828293][ T440] 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)
[   30.829861][  T440] RSP: 002b:00007fff02c07288 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   30.830719][  T440] RAX: ffffffffffffffda RBX: 00007fff02c079b0 RCX: 00007f76a8b101e7
[   30.831405][  T440] RDX: 0000000000000000 RSI: 00007fff02c072f0 RDI: 0000000000000005
[   30.832008][  T440] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[   30.832575][  T440] R10: 00007f76a8a086f8 R11: 0000000000000246 R12: 00007fff02c079e0
[   30.833177][  T440] R13: 00000000686e2c18 R14: 0000000000499600 R15: 00007fff02c073e0
| [   32.245340][  T456] ------------[ cut here ]------------
| [ 32.245773][ T456] WARNING: CPU: 0 PID: 456 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) 
| [   32.246381][  T456] Modules linked in: ip_gre gre
| [   32.247340][  T456] Tainted: [W]=WARN
[   32.247945][  T456] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 32.248328][ T456] 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) 
[ 32.248650][ T456] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   32.249758][  T456] RSP: 0018:ffffc90000f47000 EFLAGS: 00010246
[   32.250146][  T456] RAX: 0000000000000000 RBX: ffff88800e76c000 RCX: 0000000000000001
[   32.250631][  T456] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   32.251094][  T456] RBP: ffffc90000f470e8 R08: ffff88800e76c218 R09: 0000000000000000
[   32.251558][  T456] R10: ffffc90000f47118 R11: ffff88800e76c000 R12: 1ffff920001e8e04
[   32.252016][  T456] R13: 00000000000005c4 R14: ffffc90000f47118 R15: ffff88800e76c218
[   32.252479][  T456] FS:  00007f3ad6dfc800(0000) GS:ffff8880b1599000(0000) knlGS:0000000000000000
[   32.253021][  T456] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   32.253410][  T456] CR2: 0000000000436890 CR3: 000000000c305003 CR4: 0000000000772ef0
[   32.253874][  T456] PKRU: 55555554
[   32.254104][  T456] Call Trace:
[   32.254332][  T456]  <TASK>
[ 32.254505][ T456] ? packet_notifier (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/packet/af_packet.c:4283) 
[ 32.254823][ T456] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 32.255124][ T456] ? packet_notifier (net/packet/af_packet.c:4286) 
[ 32.255427][ T456] ? __pfx_vlan_device_event (net/8021q/vlan.c:362) 
[ 32.255745][ T456] ? __pfx_br_device_event (net/bridge/br.c:29) 
[ 32.256059][ T456] netif_set_mtu (net/core/dev.c:9652) 
[ 32.256365][ T456] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 32.256685][ T456] ? __pfx_register_netdevice (net/core/dev.c:11036) 
[ 32.256996][ T456] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 32.257228][ T456] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 32.257544][ T456] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 32.257860][ T456] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 32.258169][ T456] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 32.258565][ T456] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 32.258885][ T456] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 32.259191][ T456] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 32.259505][ T456] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 32.259809][ T456] ? __dev_get_by_name (net/core/dev.c:865) 
[ 32.260113][ T456] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 32.260417][ T456] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 32.260731][ T456] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 32.261032][ T456] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 32.261345][ T456] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 32.261668][ T456] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 32.261980][ T456] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 32.262302][ T456] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 32.262622][ T456] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 32.262937][ T456] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 32.263245][ T456] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 32.263559][ T456] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 32.263868][ T456] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 32.264179][ T456] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 32.264493][ T456] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 32.264801][ T456] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 32.265113][ T456] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 32.265412][ T456] ? 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) 
[ 32.265725][ T456] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 32.266034][ T456] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 32.266335][ T456] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 32.266662][ T456] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 32.266978][ T456] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 32.267281][ T456] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 32.267605][ T456] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 32.267917][ T456] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 32.268217][ T456] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 32.268618][ T456] ___sys_sendmsg (net/socket.c:2670) 
[ 32.268925][ T456] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 32.269232][ T456] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 32.269547][ T456] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 32.269851][ T456] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 32.270161][ T456] ? __handle_mm_fault (mm/memory.c:6212) 
[ 32.270484][ T456] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 32.270786][ T456] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 32.271113][ T456] __sys_sendmsg (net/socket.c:2700) 
[ 32.271419][ T456] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 32.271730][ T456] ? 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) 
[ 32.272049][ T456] ? 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) 
[ 32.272355][ T456] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 32.272672][ T456] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 32.272983][ T456] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   32.273362][  T456] RIP: 0033:0x7f3ad6fc91e7
[ 32.273682][ T456] 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)
[   32.274779][  T456] RSP: 002b:00007ffe286078d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   32.275246][  T456] RAX: ffffffffffffffda RBX: 00007ffe28608000 RCX: 00007f3ad6fc91e7
[   32.275712][  T456] RDX: 0000000000000000 RSI: 00007ffe28607940 RDI: 0000000000000005
[   32.276170][  T456] RBP: 0000000000000004 R08: 00000000000000ac R09: 0000000000000000
[   32.276634][  T456] R10: 00007f3ad6ec16f8 R11: 0000000000000246 R12: 00007ffe28608030
[   32.277091][  T456] R13: 00000000686e2c19 R14: 0000000000499600 R15: 00007ffe28607a30
| [   33.987435][  T472] ------------[ cut here ]------------
| [ 33.987884][ T472] WARNING: CPU: 3 PID: 472 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) 
| [   33.988530][  T472] Modules linked in: ip_gre gre
| [   33.989494][  T472] Tainted: [W]=WARN
[   33.989733][  T472] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 33.990119][ T472] 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) 
[ 33.990441][ T472] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   33.991548][  T472] RSP: 0018:ffffc90000ed7000 EFLAGS: 00010246
[   33.991953][  T472] RAX: 0000000000000000 RBX: ffff888007c99000 RCX: 0000000000000001
[   33.992420][  T472] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   33.992893][  T472] RBP: ffffc90000ed70e8 R08: ffff888007c99218 R09: 0000000000000000
[   33.993364][  T472] R10: ffffc90000ed7118 R11: ffffffffb9d8d1e0 R12: 1ffff920001dae04
[   33.993846][  T472] R13: 000000000000ffd9 R14: ffffc90000ed7118 R15: ffff888007c99218
[   33.994309][  T472] FS:  00007fe9a71a4800(0000) GS:ffff8880b1719000(0000) knlGS:0000000000000000
[   33.994849][  T472] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   33.995240][  T472] CR2: 00007fe9a73ffb78 CR3: 000000000eb6c002 CR4: 0000000000772ef0
[   33.995730][  T472] PKRU: 55555554
[   33.995963][  T472] Call Trace:
[   33.996191][  T472]  <TASK>
[ 33.996358][ T472] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 33.996753][ T472] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 33.997071][ T472] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 33.997383][ T472] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 33.997719][ T472] netif_set_mtu (net/core/dev.c:9652) 
[ 33.998034][ T472] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 33.998352][ T472] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 33.998665][ T472] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 33.998905][ T472] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 33.999217][ T472] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 33.999539][ T472] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 33.999850][ T472] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 34.000228][ T472] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 34.000555][ T472] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 34.000863][ T472] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 34.001187][ T472] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 34.001499][ T472] ? __dev_get_by_name (net/core/dev.c:865) 
[ 34.001815][ T472] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 34.002123][ T472] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 34.002433][ T472] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 34.002753][ T472] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 34.003076][ T472] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 34.003398][ T472] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 34.003715][ T472] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 34.004042][ T472] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 34.004348][ T472] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 34.004669][ T472] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 34.004980][ T472] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 34.005288][ T472] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 34.005606][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 34.005919][ T472] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 34.006233][ T472] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 34.006552][ T472] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 34.006872][ T472] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 34.007177][ T472] ? 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) 
[ 34.007492][ T472] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 34.007805][ T472] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 34.008111][ T472] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 34.008420][ T472] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 34.008754][ T472] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 34.009060][ T472] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 34.009377][ T472] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 34.009695][ T472] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 34.010001][ T472] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 34.010394][ T472] ___sys_sendmsg (net/socket.c:2670) 
[ 34.010712][ T472] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 34.011017][ T472] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 34.011329][ T472] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 34.011651][ T472] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 34.011967][ T472] ? __handle_mm_fault (mm/memory.c:6212) 
[ 34.012274][ T472] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 34.012581][ T472] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 34.012911][ T472] __sys_sendmsg (net/socket.c:2700) 
[ 34.013232][ T472] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 34.013551][ T472] ? 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) 
[ 34.013870][ T472] ? 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) 
[ 34.014180][ T472] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 34.014500][ T472] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 34.014809][ T472] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   34.015192][  T472] RIP: 0033:0x7fe9a73711e7
[ 34.015524][ T472] 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)
[   34.016627][  T472] RSP: 002b:00007ffe8b2ca348 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   34.017095][  T472] RAX: ffffffffffffffda RBX: 00007ffe8b2caa70 RCX: 00007fe9a73711e7
[   34.017567][  T472] RDX: 0000000000000000 RSI: 00007ffe8b2ca3b0 RDI: 0000000000000005
[   34.018025][  T472] RBP: 0000000000000004 R08: 00000000000000b8 R09: 0000000000000000
[   34.018499][  T472] R10: 00007fe9a72696f8 R11: 0000000000000246 R12: 00007ffe8b2caaa0
[   34.018967][  T472] R13: 00000000686e2c1b R14: 0000000000499600 R15: 00007ffe8b2ca4a4
| [   35.538734][  T488] ------------[ cut here ]------------
| [ 35.539078][ T488] WARNING: CPU: 3 PID: 488 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) 
| [   35.539682][  T488] Modules linked in: ip_gre gre
| [   35.540647][  T488] Tainted: [W]=WARN
[   35.540881][  T488] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 35.541260][ T488] 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) 
[ 35.541587][ T488] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   35.542665][  T488] RSP: 0018:ffffc90001087000 EFLAGS: 00010246
[   35.543072][  T488] RAX: 0000000000000000 RBX: ffff88801f11c000 RCX: 0000000000000001
[   35.543540][  T488] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   35.543998][  T488] RBP: ffffc900010870e8 R08: ffff88801f11c218 R09: 0000000000000000
[   35.544456][  T488] R10: ffffc90001087118 R11: ffffffffb9d8d1e0 R12: 1ffff92000210e04
[   35.544921][  T488] R13: 000000000000ffd9 R14: ffffc90001087118 R15: ffff88801f11c218
[   35.545375][  T488] FS:  00007f49dc806800(0000) GS:ffff8880b1719000(0000) knlGS:0000000000000000
[   35.545940][  T488] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   35.546324][  T488] CR2: 0000000000436890 CR3: 000000001f262004 CR4: 0000000000772ef0
[   35.546798][  T488] PKRU: 55555554
[   35.547041][  T488] Call Trace:
[   35.547264][  T488]  <TASK>
[ 35.547420][ T488] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 35.547799][ T488] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 35.548103][ T488] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 35.548402][ T488] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 35.548718][ T488] netif_set_mtu (net/core/dev.c:9652) 
[ 35.549017][ T488] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 35.549326][ T488] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 35.549632][ T488] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 35.549859][ T488] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 35.550158][ T488] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 35.550472][ T488] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 35.550774][ T488] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 35.551143][ T488] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 35.551449][ T488] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 35.551775][ T488] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 35.552076][ T488] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 35.552371][ T488] ? __dev_get_by_name (net/core/dev.c:865) 
[ 35.552673][ T488] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 35.552978][ T488] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 35.553315][ T488] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 35.553626][ T488] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 35.553935][ T488] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 35.554251][ T488] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 35.554571][ T488] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.554893][ T488] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 35.555193][ T488] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 35.555517][ T488] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 35.555815][ T488] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 35.556115][ T488] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.556444][ T488] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.556763][ T488] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 35.557067][ T488] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 35.557371][ T488] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 35.557704][ T488] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 35.557998][ T488] ? 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) 
[ 35.558294][ T488] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 35.558607][ T488] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 35.558929][ T488] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 35.559237][ T488] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 35.559551][ T488] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 35.559870][ T488] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 35.560175][ T488] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 35.560482][ T488] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 35.560777][ T488] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 35.561160][ T488] ___sys_sendmsg (net/socket.c:2670) 
[ 35.561458][ T488] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 35.561766][ T488] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 35.562063][ T488] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 35.562358][ T488] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 35.562667][ T488] ? __handle_mm_fault (mm/memory.c:6212) 
[ 35.562975][ T488] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 35.563299][ T488] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 35.563639][ T488] __sys_sendmsg (net/socket.c:2700) 
[ 35.563946][ T488] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 35.564257][ T488] ? 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) 
[ 35.564567][ T488] ? 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) 
[ 35.564869][ T488] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 35.565193][ T488] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 35.565505][ T488] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   35.565889][  T488] RIP: 0033:0x7f49dc9d31e7
[ 35.566214][ T488] 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)
[   35.567282][  T488] RSP: 002b:00007ffdcd2715d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   35.567734][  T488] RAX: ffffffffffffffda RBX: 00007ffdcd271d00 RCX: 00007f49dc9d31e7
[   35.568179][  T488] RDX: 0000000000000000 RSI: 00007ffdcd271640 RDI: 0000000000000005
[   35.568626][  T488] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   35.569071][  T488] R10: 00007f49dc8cb6f8 R11: 0000000000000246 R12: 00007ffdcd271d30
[   35.569526][  T488] R13: 00000000686e2c1d R14: 0000000000499600 R15: 00007ffdcd271734
| [   37.089554][  T504] ------------[ cut here ]------------
| [ 37.090009][ T504] WARNING: CPU: 2 PID: 504 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) 
| [   37.090642][  T504] Modules linked in: ip_gre gre
| [   37.091605][  T504] Tainted: [W]=WARN
[   37.091848][  T504] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 37.092242][ T504] 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) 
[ 37.092712][ T504] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   37.093837][  T504] RSP: 0018:ffffc90001167000 EFLAGS: 00010246
[   37.094248][  T504] RAX: 0000000000000000 RBX: ffff88800c479000 RCX: 0000000000000001
[   37.094734][  T504] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   37.095211][  T504] RBP: ffffc900011670e8 R08: ffff88800c479218 R09: 0000000000000000
[   37.095692][  T504] R10: ffffc90001167118 R11: 8f0df07018a1913c R12: 1ffff9200022ce04
[   37.096160][  T504] R13: 00000000000005b6 R14: ffffc90001167118 R15: ffff88800c479218
[   37.096630][  T504] FS:  00007f92509e0800(0000) GS:ffff8880b1699000(0000) knlGS:0000000000000000
[   37.097164][  T504] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   37.097564][  T504] CR2: 00007f9250ae0130 CR3: 000000000eb44001 CR4: 0000000000772ef0
[   37.098036][  T504] PKRU: 55555554
[   37.098273][  T504] Call Trace:
[   37.098518][  T504]  <TASK>
[ 37.098684][ T504] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 37.099001][ T504] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 37.099312][ T504] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 37.099645][ T504] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 37.099975][ T504] netif_set_mtu (net/core/dev.c:9652) 
[ 37.100289][ T504] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 37.100624][ T504] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 37.100936][ T504] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 37.101173][ T504] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 37.101505][ T504] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 37.101824][ T504] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 37.102144][ T504] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 37.102542][ T504] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 37.102864][ T504] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 37.103213][ T504] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 37.103580][ T504] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 37.103897][ T504] ? __dev_get_by_name (net/core/dev.c:865) 
[ 37.104215][ T504] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 37.104544][ T504] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 37.104870][ T504] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 37.105186][ T504] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 37.105531][ T504] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 37.105864][ T504] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 37.106190][ T504] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 37.106530][ T504] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 37.106850][ T504] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 37.107169][ T504] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 37.107503][ T504] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 37.107829][ T504] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 37.108154][ T504] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.108492][ T504] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 37.108814][ T504] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 37.109134][ T504] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 37.109479][ T504] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 37.109800][ T504] ? 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) 
[ 37.110119][ T504] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 37.110444][ T504] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 37.110771][ T504] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 37.111100][ T504] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 37.111424][ T504] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 37.111771][ T504] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 37.112109][ T504] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 37.112435][ T504] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 37.112764][ T504] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 37.113180][ T504] ___sys_sendmsg (net/socket.c:2670) 
[ 37.113512][ T504] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 37.113836][ T504] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 37.114159][ T504] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 37.114488][ T504] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 37.114814][ T504] ? __handle_mm_fault (mm/memory.c:6212) 
[ 37.115141][ T504] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 37.115457][ T504] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 37.115820][ T504] __sys_sendmsg (net/socket.c:2700) 
[ 37.116143][ T504] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 37.116471][ T504] ? 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) 
[ 37.116795][ T504] ? 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) 
[ 37.117116][ T504] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 37.117437][ T504] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 37.117771][ T504] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   37.118164][  T504] RIP: 0033:0x7f9250bad1e7
[ 37.118505][ T504] 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)
[   37.119626][  T504] RSP: 002b:00007ffe46df6108 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   37.120106][  T504] RAX: ffffffffffffffda RBX: 00007ffe46df6830 RCX: 00007f9250bad1e7
[   37.120591][  T504] RDX: 0000000000000000 RSI: 00007ffe46df6170 RDI: 0000000000000005
[   37.121063][  T504] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   37.121545][  T504] R10: 00007f9250aa56f8 R11: 0000000000000246 R12: 00007ffe46df6860
[   37.122024][  T504] R13: 00000000686e2c1e R14: 0000000000499600 R15: 00007ffe46df6264
| [   38.564787][  T520] ------------[ cut here ]------------
| [ 38.565164][ T520] WARNING: CPU: 2 PID: 520 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) 
| [   38.565933][  T520] Modules linked in: ip_gre gre
| [   38.566949][  T520] Tainted: [W]=WARN
[   38.567289][  T520] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 38.567807][ T520] 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) 
[ 38.568227][ T520] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   38.569515][  T520] RSP: 0018:ffffc90001207000 EFLAGS: 00010246
[   38.569983][  T520] RAX: 0000000000000000 RBX: ffff88800f4cc000 RCX: 0000000000000001
[   38.570613][  T520] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   38.571195][  T520] RBP: ffffc900012070e8 R08: ffff88800f4cc218 R09: 0000000000000000
[   38.571778][  T520] R10: ffffc90001207118 R11: ffffffffb9d8d1e0 R12: 1ffff92000240e04
[   38.572248][  T520] R13: 000000000000ffd9 R14: ffffc90001207118 R15: ffff88800f4cc218
[   38.572760][  T520] FS:  00007f836db9e800(0000) GS:ffff8880b1699000(0000) knlGS:0000000000000000
[   38.573355][  T520] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   38.573791][  T520] CR2: 0000000000436890 CR3: 0000000005223006 CR4: 0000000000772ef0
[   38.574394][  T520] PKRU: 55555554
[   38.574658][  T520] Call Trace:
[   38.574901][  T520]  <TASK>
[ 38.575072][ T520] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 38.575712][ T520] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 38.576048][ T520] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 38.576447][ T520] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 38.576886][ T520] netif_set_mtu (net/core/dev.c:9652) 
[ 38.577267][ T520] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 38.577689][ T520] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 38.578011][ T520] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 38.578257][ T520] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 38.578624][ T520] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 38.578958][ T520] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 38.579289][ T520] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 38.579872][ T520] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 38.580204][ T520] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 38.580560][ T520] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 38.580880][ T520] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 38.581203][ T520] ? __dev_get_by_name (net/core/dev.c:865) 
[ 38.581638][ T520] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 38.582017][ T520] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 38.582399][ T520] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 38.582834][ T520] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 38.583246][ T520] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 38.583760][ T520] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 38.584084][ T520] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 38.584444][ T520] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 38.584856][ T520] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 38.585186][ T520] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 38.585526][ T520] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 38.585850][ T520] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 38.586170][ T520] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 38.586547][ T520] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 38.587015][ T520] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 38.587382][ T520] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 38.587810][ T520] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 38.588131][ T520] ? 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) 
[ 38.588568][ T520] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 38.588898][ T520] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 38.589364][ T520] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 38.589735][ T520] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 38.590157][ T520] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 38.590533][ T520] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 38.590960][ T520] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 38.591285][ T520] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 38.591772][ T520] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 38.592183][ T520] ___sys_sendmsg (net/socket.c:2670) 
[ 38.592531][ T520] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 38.592951][ T520] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 38.593296][ T520] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 38.593717][ T520] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 38.594128][ T520] ? __handle_mm_fault (mm/memory.c:6212) 
[ 38.594528][ T520] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 38.594882][ T520] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 38.595335][ T520] __sys_sendmsg (net/socket.c:2700) 
[ 38.595843][ T520] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 38.596165][ T520] ? 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) 
[ 38.596518][ T520] ? 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) 
[ 38.596938][ T520] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 38.597271][ T520] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 38.597695][ T520] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   38.598157][  T520] RIP: 0033:0x7f836dd6b1e7
[ 38.598618][ T520] 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)
[   38.599939][  T520] RSP: 002b:00007fff0d34da48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   38.600522][  T520] RAX: ffffffffffffffda RBX: 00007fff0d34e170 RCX: 00007f836dd6b1e7
[   38.601137][  T520] RDX: 0000000000000000 RSI: 00007fff0d34dab0 RDI: 0000000000000005
[   38.601638][  T520] RBP: 0000000000000004 R08: 00000000000000b8 R09: 0000000000000000
[   38.602111][  T520] R10: 00007f836dc636f8 R11: 0000000000000246 R12: 00007fff0d34e1a0
[   38.602681][  T520] R13: 00000000686e2c20 R14: 0000000000499600 R15: 00007fff0d34dba4
| [   40.135884][  T536] ------------[ cut here ]------------
| [ 40.136230][ T536] WARNING: CPU: 3 PID: 536 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) 
| [   40.136853][  T536] Modules linked in: ip_gre gre
| [   40.137801][  T536] Tainted: [W]=WARN
[   40.138038][  T536] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 40.138421][ T536] 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) 
[ 40.138740][ T536] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   40.139938][  T536] RSP: 0018:ffffc900012b7000 EFLAGS: 00010246
[   40.140333][  T536] RAX: 0000000000000000 RBX: ffff888009e11000 RCX: 0000000000000001
[   40.140801][  T536] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   40.141263][  T536] RBP: ffffc900012b70e8 R08: ffff888009e11218 R09: 0000000000000000
[   40.141726][  T536] R10: ffffc900012b7118 R11: ffffffffb9d8d1e0 R12: 1ffff92000256e04
[   40.142189][  T536] R13: 000000000000ffd9 R14: ffffc900012b7118 R15: ffff888009e11218
[   40.142658][  T536] FS:  00007f4fa82c0800(0000) GS:ffff8880b1719000(0000) knlGS:0000000000000000
[   40.143216][  T536] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   40.143618][  T536] CR2: 00007f4fa83c0130 CR3: 0000000009786004 CR4: 0000000000772ef0
[   40.144084][  T536] PKRU: 55555554
[   40.144337][  T536] Call Trace:
[   40.144574][  T536]  <TASK>
[ 40.144734][ T536] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 40.145117][ T536] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 40.145431][ T536] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 40.145751][ T536] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 40.146067][ T536] netif_set_mtu (net/core/dev.c:9652) 
[ 40.146373][ T536] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 40.146699][ T536] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 40.147004][ T536] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 40.147242][ T536] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 40.147555][ T536] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 40.147872][ T536] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 40.148181][ T536] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 40.148569][ T536] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 40.148882][ T536] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 40.149187][ T536] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 40.149500][ T536] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 40.149800][ T536] ? __dev_get_by_name (net/core/dev.c:865) 
[ 40.150109][ T536] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 40.150413][ T536] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 40.150728][ T536] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 40.151029][ T536] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 40.151337][ T536] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 40.151659][ T536] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 40.151972][ T536] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.152288][ T536] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 40.152600][ T536] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 40.152910][ T536] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 40.153224][ T536] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 40.153551][ T536] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.153861][ T536] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.154170][ T536] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 40.154481][ T536] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 40.154793][ T536] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 40.155113][ T536] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 40.155417][ T536] ? 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) 
[ 40.155737][ T536] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 40.156045][ T536] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 40.156348][ T536] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 40.156665][ T536] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 40.156979][ T536] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 40.157286][ T536] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 40.157608][ T536] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 40.157915][ T536] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 40.158219][ T536] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 40.158620][ T536] ___sys_sendmsg (net/socket.c:2670) 
[ 40.158930][ T536] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 40.159241][ T536] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 40.159556][ T536] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 40.159860][ T536] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 40.160169][ T536] ? __handle_mm_fault (mm/memory.c:6212) 
[ 40.160485][ T536] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 40.160789][ T536] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 40.161119][ T536] __sys_sendmsg (net/socket.c:2700) 
[ 40.161426][ T536] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 40.161739][ T536] ? 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) 
[ 40.162052][ T536] ? 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) 
[ 40.162356][ T536] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 40.162676][ T536] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 40.162990][ T536] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   40.163366][  T536] RIP: 0033:0x7f4fa848d1e7
[ 40.163694][ T536] 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)
[   40.164787][  T536] RSP: 002b:00007ffe12144528 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   40.165249][  T536] RAX: ffffffffffffffda RBX: 00007ffe12144c50 RCX: 00007f4fa848d1e7
[   40.165719][  T536] RDX: 0000000000000000 RSI: 00007ffe12144590 RDI: 0000000000000005
[   40.166177][  T536] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   40.166640][  T536] R10: 00007f4fa83856f8 R11: 0000000000000246 R12: 00007ffe12144c80
[   40.167099][  T536] R13: 00000000686e2c21 R14: 0000000000499600 R15: 00007ffe12144684
| [   41.537974][  T552] ------------[ cut here ]------------
| [ 41.538425][ T552] WARNING: CPU: 2 PID: 552 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) 
| [   41.539072][  T552] Modules linked in: ip_gre gre
| [   41.540040][  T552] Tainted: [W]=WARN
[   41.540284][  T552] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 41.540697][ T552] 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) 
[ 41.541024][ T552] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   41.542145][  T552] RSP: 0018:ffffc90001367000 EFLAGS: 00010246
[   41.542554][  T552] RAX: 0000000000000000 RBX: ffff88800eae9000 RCX: 0000000000000001
[   41.543032][  T552] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   41.543515][  T552] RBP: ffffc900013670e8 R08: ffff88800eae9218 R09: 0000000000000000
[   41.543983][  T552] R10: ffffc90001367118 R11: b03213ed4a26e731 R12: 1ffff9200026ce04
[   41.544452][  T552] R13: 00000000000005b6 R14: ffffc90001367118 R15: ffff88800eae9218
[   41.544936][  T552] FS:  00007f272484c800(0000) GS:ffff8880b1699000(0000) knlGS:0000000000000000
[   41.545495][  T552] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   41.545894][  T552] CR2: 0000000000436890 CR3: 0000000009479005 CR4: 0000000000772ef0
[   41.546369][  T552] PKRU: 55555554
[   41.546619][  T552] Call Trace:
[   41.546860][  T552]  <TASK>
[ 41.547028][ T552] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 41.547352][ T552] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 41.547683][ T552] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 41.548011][ T552] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 41.548338][ T552] netif_set_mtu (net/core/dev.c:9652) 
[ 41.548667][ T552] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 41.548998][ T552] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 41.549325][ T552] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 41.549580][ T552] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 41.549908][ T552] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 41.550240][ T552] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 41.550573][ T552] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 41.550967][ T552] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 41.551293][ T552] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 41.551625][ T552] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 41.552043][ T552] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 41.552360][ T552] ? __dev_get_by_name (net/core/dev.c:865) 
[ 41.552690][ T552] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 41.553019][ T552] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 41.553345][ T552] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 41.553674][ T552] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 41.553996][ T552] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 41.554326][ T552] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 41.554660][ T552] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.554990][ T552] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 41.555303][ T552] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 41.555636][ T552] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 41.555957][ T552] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 41.556277][ T552] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.556606][ T552] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.556931][ T552] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 41.557248][ T552] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 41.557577][ T552] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 41.557903][ T552] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 41.558227][ T552] ? 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) 
[ 41.558554][ T552] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 41.558875][ T552] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 41.559190][ T552] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 41.559543][ T552] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 41.559871][ T552] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 41.560189][ T552] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 41.560525][ T552] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 41.560850][ T552] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 41.561165][ T552] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 41.561583][ T552] ___sys_sendmsg (net/socket.c:2670) 
[ 41.561901][ T552] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 41.562219][ T552] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 41.562554][ T552] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 41.562875][ T552] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 41.563207][ T552] ? __handle_mm_fault (mm/memory.c:6212) 
[ 41.563536][ T552] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 41.563850][ T552] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 41.564188][ T552] __sys_sendmsg (net/socket.c:2700) 
[ 41.564515][ T552] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 41.564838][ T552] ? 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) 
[ 41.565166][ T552] ? 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) 
[ 41.565496][ T552] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 41.565819][ T552] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 41.566140][ T552] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   41.566538][  T552] RIP: 0033:0x7f2724a191e7
[ 41.566864][ T552] 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)
[   41.567997][  T552] RSP: 002b:00007ffddabcf868 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   41.568483][  T552] RAX: ffffffffffffffda RBX: 00007ffddabcff90 RCX: 00007f2724a191e7
[   41.568961][  T552] RDX: 0000000000000000 RSI: 00007ffddabcf8d0 RDI: 0000000000000005
[   41.569441][  T552] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   41.569921][  T552] R10: 00007f27249116f8 R11: 0000000000000246 R12: 00007ffddabcffc0
[   41.570415][  T552] R13: 00000000686e2c23 R14: 0000000000499600 R15: 00007ffddabcf9c4
| [   43.044554][  T568] ------------[ cut here ]------------
| [ 43.044981][ T568] WARNING: CPU: 0 PID: 568 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) 
| [   43.045601][  T568] Modules linked in: ip_gre gre
| [   43.046553][  T568] Tainted: [W]=WARN
[   43.046784][  T568] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 43.047164][ T568] 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) 
[ 43.047486][ T568] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   43.048587][  T568] RSP: 0018:ffffc900013b7000 EFLAGS: 00010246
[   43.048971][  T568] RAX: 0000000000000000 RBX: ffff888005bbc000 RCX: 0000000000000001
[   43.049433][  T568] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   43.049895][  T568] RBP: ffffc900013b70e8 R08: ffff888005bbc218 R09: 0000000000000000
[   43.050350][  T568] R10: ffffc900013b7118 R11: ffffffffb9d8d1e0 R12: 1ffff92000276e04
[   43.050809][  T568] R13: 000000000000ffd9 R14: ffffc900013b7118 R15: ffff888005bbc218
[   43.051267][  T568] FS:  00007fa1994a4800(0000) GS:ffff8880b1599000(0000) knlGS:0000000000000000
[   43.051813][  T568] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   43.052197][  T568] CR2: 00007fa1996ffb78 CR3: 000000000b36c006 CR4: 0000000000772ef0
[   43.052661][  T568] PKRU: 55555554
[   43.052891][  T568] Call Trace:
[   43.053130][  T568]  <TASK>
[ 43.053285][ T568] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 43.053682][ T568] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 43.053996][ T568] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 43.054305][ T568] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 43.054631][ T568] netif_set_mtu (net/core/dev.c:9652) 
[ 43.054938][ T568] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 43.055256][ T568] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 43.055569][ T568] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 43.055801][ T568] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 43.056114][ T568] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 43.056425][ T568] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 43.056742][ T568] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 43.057120][ T568] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 43.057434][ T568] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 43.057749][ T568] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 43.058060][ T568] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 43.058361][ T568] ? __dev_get_by_name (net/core/dev.c:865) 
[ 43.058676][ T568] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 43.058979][ T568] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 43.059287][ T568] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 43.059595][ T568] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 43.059904][ T568] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 43.060218][ T568] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 43.060540][ T568] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.060857][ T568] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 43.061156][ T568] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 43.061470][ T568] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 43.061777][ T568] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 43.062083][ T568] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.062391][ T568] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.062707][ T568] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 43.063024][ T568] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 43.063330][ T568] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 43.063654][ T568] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 43.063959][ T568] ? 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) 
[ 43.064264][ T568] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 43.064577][ T568] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 43.064888][ T568] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 43.065199][ T568] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 43.065517][ T568] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 43.065820][ T568] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 43.066134][ T568] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 43.066443][ T568] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 43.066755][ T568] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 43.067147][ T568] ___sys_sendmsg (net/socket.c:2670) 
[ 43.067458][ T568] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 43.067773][ T568] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 43.068083][ T568] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 43.068386][ T568] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 43.068703][ T568] ? __handle_mm_fault (mm/memory.c:6212) 
[ 43.069008][ T568] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 43.069315][ T568] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 43.069652][ T568] __sys_sendmsg (net/socket.c:2700) 
[ 43.069958][ T568] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 43.070262][ T568] ? 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) 
[ 43.070582][ T568] ? 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) 
[ 43.070889][ T568] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 43.071196][ T568] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 43.071515][ T568] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   43.071892][  T568] RIP: 0033:0x7fa1996711e7
[ 43.072205][ T568] 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)
[   43.073309][  T568] RSP: 002b:00007fff97fb4948 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   43.073782][  T568] RAX: ffffffffffffffda RBX: 00007fff97fb5070 RCX: 00007fa1996711e7
[   43.074242][  T568] RDX: 0000000000000000 RSI: 00007fff97fb49b0 RDI: 0000000000000005
[   43.074707][  T568] RBP: 0000000000000004 R08: 00000000000000b8 R09: 0000000000000000
[   43.075167][  T568] R10: 00007fa1995696f8 R11: 0000000000000246 R12: 00007fff97fb50a0
[   43.075638][  T568] R13: 00000000686e2c24 R14: 0000000000499600 R15: 00007fff97fb4aa4
| [   44.663063][  T585] ------------[ cut here ]------------
| [ 44.663446][ T585] WARNING: CPU: 0 PID: 585 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) 
| [   44.664078][  T585] Modules linked in: ip_gre gre
| [   44.666145][  T585] Tainted: [W]=WARN
[   44.666382][  T585] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 44.666819][ T585] 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) 
[ 44.667172][ T585] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   44.668319][  T585] RSP: 0018:ffffc90001387000 EFLAGS: 00010246
[   44.668758][  T585] RAX: 0000000000000000 RBX: ffff888009e6c000 RCX: 0000000000000001
[   44.669242][  T585] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   44.669731][  T585] RBP: ffffc900013870e8 R08: ffff888009e6c218 R09: 0000000000000000
[   44.670205][  T585] R10: ffffc90001387118 R11: ffffffffb9d8d1e0 R12: 1ffff92000270e04
[   44.670695][  T585] R13: 000000000000ffd9 R14: ffffc90001387118 R15: ffff888009e6c218
[   44.671172][  T585] FS:  00007fd64da94800(0000) GS:ffff8880b1599000(0000) knlGS:0000000000000000
[   44.671791][  T585] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   44.672186][  T585] CR2: 00007fd64dcefb78 CR3: 0000000005780002 CR4: 0000000000772ef0
[   44.672701][  T585] PKRU: 55555554
[   44.672976][  T585] Call Trace:
[   44.673216][  T585]  <TASK>
[ 44.673410][ T585] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 44.673832][ T585] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 44.674145][ T585] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 44.674479][ T585] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 44.674810][ T585] netif_set_mtu (net/core/dev.c:9652) 
[ 44.675123][ T585] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 44.675510][ T585] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 44.675860][ T585] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 44.676117][ T585] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 44.676456][ T585] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 44.676818][ T585] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 44.677173][ T585] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 44.677566][ T585] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 44.677912][ T585] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 44.678246][ T585] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 44.678596][ T585] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 44.678924][ T585] ? __dev_get_by_name (net/core/dev.c:865) 
[ 44.679243][ T585] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 44.679568][ T585] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 44.679911][ T585] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 44.680224][ T585] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 44.680567][ T585] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 44.680896][ T585] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 44.681251][ T585] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 44.681598][ T585] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 44.681912][ T585] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 44.682220][ T585] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 44.682589][ T585] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 44.682903][ T585] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 44.683222][ T585] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.683556][ T585] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 44.683886][ T585] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 44.684208][ T585] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 44.684577][ T585] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 44.684894][ T585] ? 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) 
[ 44.685210][ T585] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 44.685531][ T585] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 44.685853][ T585] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 44.686171][ T585] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 44.686503][ T585] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 44.686826][ T585] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 44.687139][ T585] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 44.687449][ T585] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 44.687802][ T585] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 44.688201][ T585] ___sys_sendmsg (net/socket.c:2670) 
[ 44.688517][ T585] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 44.688820][ T585] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 44.689146][ T585] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 44.689483][ T585] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 44.689809][ T585] ? __handle_mm_fault (mm/memory.c:6212) 
[ 44.690113][ T585] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 44.690437][ T585] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 44.690793][ T585] __sys_sendmsg (net/socket.c:2700) 
[ 44.691100][ T585] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 44.691432][ T585] ? 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) 
[ 44.691780][ T585] ? 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) 
[ 44.692110][ T585] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 44.692419][ T585] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 44.692764][ T585] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   44.693172][  T585] RIP: 0033:0x7fd64dc611e7
[ 44.693506][ T585] 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)
[   44.694750][  T585] RSP: 002b:00007ffe29885ae8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   44.695262][  T585] RAX: ffffffffffffffda RBX: 00007ffe29886210 RCX: 00007fd64dc611e7
[   44.695773][  T585] RDX: 0000000000000000 RSI: 00007ffe29885b50 RDI: 0000000000000005
[   44.696310][  T585] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   44.696807][  T585] R10: 00007fd64db596f8 R11: 0000000000000246 R12: 00007ffe29886240
[   44.697274][  T585] R13: 00000000686e2c26 R14: 0000000000499600 R15: 00007ffe29885c44
| [   46.274188][  T602] ------------[ cut here ]------------
| [ 46.274586][ T602] WARNING: CPU: 2 PID: 602 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) 
| [   46.275206][  T602] Modules linked in: ip_gre gre
| [   46.276180][  T602] Tainted: [W]=WARN
[   46.276423][  T602] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 46.276834][ T602] 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) 
[ 46.277161][ T602] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   46.278272][  T602] RSP: 0018:ffffc900014d7000 EFLAGS: 00010246
[   46.278676][  T602] RAX: 0000000000000000 RBX: ffff88800bef1000 RCX: 0000000000000001
[   46.279146][  T602] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   46.279625][  T602] RBP: ffffc900014d70e8 R08: ffff88800bef1218 R09: 0000000000000000
[   46.280092][  T602] R10: ffffc900014d7118 R11: afa22afd71d1147e R12: 1ffff9200029ae04
[   46.280570][  T602] R13: 00000000000005b6 R14: ffffc900014d7118 R15: ffff88800bef1218
[   46.281039][  T602] FS:  00007fb228a03800(0000) GS:ffff8880b1699000(0000) knlGS:0000000000000000
[   46.281594][  T602] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   46.281997][  T602] CR2: 0000000000436890 CR3: 000000001f3c6001 CR4: 0000000000772ef0
[   46.282478][  T602] PKRU: 55555554
[   46.282723][  T602] Call Trace:
[   46.282968][  T602]  <TASK>
[ 46.283139][ T602] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 46.283484][ T602] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 46.283806][ T602] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 46.284122][ T602] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 46.284447][ T602] netif_set_mtu (net/core/dev.c:9652) 
[ 46.284775][ T602] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 46.285101][ T602] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 46.285419][ T602] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 46.285678][ T602] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 46.286003][ T602] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 46.286332][ T602] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 46.286663][ T602] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 46.287051][ T602] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 46.287376][ T602] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 46.287703][ T602] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 46.288042][ T602] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 46.288357][ T602] ? __dev_get_by_name (net/core/dev.c:865) 
[ 46.288690][ T602] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 46.289004][ T602] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 46.289325][ T602] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 46.289648][ T602] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 46.289973][ T602] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 46.290301][ T602] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 46.290656][ T602] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 46.290984][ T602] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 46.291300][ T602] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 46.291629][ T602] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 46.291947][ T602] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 46.292264][ T602] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 46.292594][ T602] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.292917][ T602] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 46.293255][ T602] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 46.293583][ T602] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 46.293912][ T602] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 46.294227][ T602] ? 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) 
[ 46.294557][ T602] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 46.294878][ T602] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 46.295197][ T602] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 46.295528][ T602] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 46.295850][ T602] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 46.296166][ T602] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 46.296503][ T602] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 46.296824][ T602] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 46.297136][ T602] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 46.297551][ T602] ___sys_sendmsg (net/socket.c:2670) 
[ 46.297873][ T602] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 46.298190][ T602] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 46.298518][ T602] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 46.298835][ T602] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 46.299154][ T602] ? __handle_mm_fault (mm/memory.c:6212) 
[ 46.299478][ T602] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 46.299798][ T602] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 46.300136][ T602] __sys_sendmsg (net/socket.c:2700) 
[ 46.300452][ T602] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 46.300779][ T602] ? 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) 
[ 46.301104][ T602] ? 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) 
[ 46.301424][ T602] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 46.301756][ T602] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 46.302083][ T602] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   46.302482][  T602] RIP: 0033:0x7fb228bd01e7
[ 46.302812][ T602] 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)
[   46.303925][  T602] RSP: 002b:00007ffc15b3a8a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   46.304399][  T602] RAX: ffffffffffffffda RBX: 00007ffc15b3afd0 RCX: 00007fb228bd01e7
[   46.304877][  T602] RDX: 0000000000000000 RSI: 00007ffc15b3a910 RDI: 0000000000000005
[   46.305343][  T602] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   46.305820][  T602] R10: 00007fb228ac86f8 R11: 0000000000000246 R12: 00007ffc15b3b000
[   46.306292][  T602] R13: 00000000686e2c27 R14: 0000000000499600 R15: 00007ffc15b3aa04
| [   47.851454][  T619] ------------[ cut here ]------------
| [ 47.852139][ T619] WARNING: CPU: 0 PID: 619 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) 
| [   47.852767][  T619] Modules linked in: ip_gre gre
| [   47.853741][  T619] Tainted: [W]=WARN
[   47.853975][  T619] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 47.854373][ T619] 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) 
[ 47.854712][ T619] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   47.855874][  T619] RSP: 0018:ffffc90001647000 EFLAGS: 00010246
[   47.856267][  T619] RAX: 0000000000000000 RBX: ffff8880056bc000 RCX: 0000000000000001
[   47.856738][  T619] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   47.857210][  T619] RBP: ffffc900016470e8 R08: ffff8880056bc218 R09: 0000000000000000
[   47.857679][  T619] R10: ffffc90001647118 R11: ffffffffb9d8d1e0 R12: 1ffff920002c8e04
[   47.858139][  T619] R13: 000000000000ffd9 R14: ffffc90001647118 R15: ffff8880056bc218
[   47.858607][  T619] FS:  00007f638afab800(0000) GS:ffff8880b1599000(0000) knlGS:0000000000000000
[   47.859152][  T619] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   47.859552][  T619] CR2: 0000000000436890 CR3: 000000000e363006 CR4: 0000000000772ef0
[   47.860030][  T619] PKRU: 55555554
[   47.860262][  T619] Call Trace:
[   47.860503][  T619]  <TASK>
[ 47.860672][ T619] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 47.861066][ T619] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 47.861397][ T619] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 47.861717][ T619] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 47.862036][ T619] netif_set_mtu (net/core/dev.c:9652) 
[ 47.862353][ T619] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 47.862686][ T619] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 47.863011][ T619] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 47.863260][ T619] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 47.863579][ T619] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 47.863908][ T619] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 47.864217][ T619] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 47.864608][ T619] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 47.864927][ T619] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 47.865238][ T619] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 47.865559][ T619] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 47.865867][ T619] ? __dev_get_by_name (net/core/dev.c:865) 
[ 47.866174][ T619] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 47.866489][ T619] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 47.866814][ T619] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 47.867142][ T619] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 47.867486][ T619] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 47.867818][ T619] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 47.868154][ T619] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 47.868497][ T619] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 47.868804][ T619] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 47.869116][ T619] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 47.869435][ T619] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 47.869750][ T619] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 47.870059][ T619] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.870371][ T619] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 47.870685][ T619] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 47.871007][ T619] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 47.871324][ T619] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 47.871634][ T619] ? 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) 
[ 47.871960][ T619] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 47.872268][ T619] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 47.872583][ T619] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 47.872906][ T619] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 47.873223][ T619] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 47.873551][ T619] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 47.873864][ T619] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 47.874175][ T619] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 47.874504][ T619] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 47.874907][ T619] ___sys_sendmsg (net/socket.c:2670) 
[ 47.875226][ T619] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 47.875552][ T619] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 47.875886][ T619] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 47.876192][ T619] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 47.876510][ T619] ? __handle_mm_fault (mm/memory.c:6212) 
[ 47.876825][ T619] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 47.877127][ T619] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 47.877457][ T619] __sys_sendmsg (net/socket.c:2700) 
[ 47.877788][ T619] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 47.878108][ T619] ? 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) 
[ 47.878422][ T619] ? 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) 
[ 47.878736][ T619] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 47.879047][ T619] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 47.879359][ T619] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   47.879746][  T619] RIP: 0033:0x7f638b1781e7
[ 47.880059][ T619] 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)
[   47.881170][  T619] RSP: 002b:00007ffee88eef48 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   47.881660][  T619] RAX: ffffffffffffffda RBX: 00007ffee88ef670 RCX: 00007f638b1781e7
[   47.882134][  T619] RDX: 0000000000000000 RSI: 00007ffee88eefb0 RDI: 0000000000000005
[   47.882610][  T619] RBP: 0000000000000004 R08: 00000000000000b8 R09: 0000000000000000
[   47.883094][  T619] R10: 00007f638b0706f8 R11: 0000000000000246 R12: 00007ffee88ef6a0
[   47.883571][  T619] R13: 00000000686e2c29 R14: 0000000000499600 R15: 00007ffee88ef0a4
| [   49.255012][  T635] ------------[ cut here ]------------
| [ 49.255433][ T635] WARNING: CPU: 3 PID: 635 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) 
| [   49.256054][  T635] Modules linked in: ip_gre gre
| [   49.257013][  T635] Tainted: [W]=WARN
[   49.257245][  T635] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 49.257653][ T635] 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) 
[ 49.257969][ T635] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   49.259078][  T635] RSP: 0018:ffffc900016d7000 EFLAGS: 00010246
[   49.259478][  T635] RAX: 0000000000000000 RBX: ffff888002b49000 RCX: 0000000000000001
[   49.259941][  T635] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   49.260402][  T635] RBP: ffffc900016d70e8 R08: ffff888002b49218 R09: 0000000000000000
[   49.260862][  T635] R10: ffffc900016d7118 R11: ffffffffb9d8d1e0 R12: 1ffff920002dae04
[   49.261325][  T635] R13: 000000000000ffd9 R14: ffffc900016d7118 R15: ffff888002b49218
[   49.261789][  T635] FS:  00007f924b043800(0000) GS:ffff8880b1719000(0000) knlGS:0000000000000000
[   49.262323][  T635] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   49.262725][  T635] CR2: 0000000000436890 CR3: 000000000c379004 CR4: 0000000000772ef0
[   49.263209][  T635] PKRU: 55555554
[   49.263439][  T635] Call Trace:
[   49.263818][  T635]  <TASK>
[ 49.263977][ T635] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 49.264362][ T635] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 49.264736][ T635] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 49.265045][ T635] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 49.265368][ T635] netif_set_mtu (net/core/dev.c:9652) 
[ 49.265683][ T635] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 49.266000][ T635] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 49.266306][ T635] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 49.266557][ T635] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 49.266869][ T635] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 49.267182][ T635] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 49.267502][ T635] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 49.267882][ T635] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 49.268199][ T635] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 49.268533][ T635] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 49.268848][ T635] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 49.269154][ T635] ? __dev_get_by_name (net/core/dev.c:865) 
[ 49.269472][ T635] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 49.269778][ T635] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 49.270086][ T635] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 49.270386][ T635] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 49.270712][ T635] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 49.271035][ T635] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 49.271343][ T635] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 49.271674][ T635] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 49.271978][ T635] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 49.272284][ T635] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 49.272598][ T635] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 49.272914][ T635] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 49.273230][ T635] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.273552][ T635] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 49.273863][ T635] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 49.274168][ T635] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 49.274503][ T635] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 49.274813][ T635] ? 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) 
[ 49.275120][ T635] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 49.275426][ T635] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 49.275737][ T635] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 49.276052][ T635] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 49.276361][ T635] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 49.276676][ T635] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 49.276994][ T635] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 49.277306][ T635] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 49.277618][ T635] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 49.278013][ T635] ___sys_sendmsg (net/socket.c:2670) 
[ 49.278326][ T635] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 49.278644][ T635] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 49.278954][ T635] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 49.279254][ T635] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 49.279572][ T635] ? __handle_mm_fault (mm/memory.c:6212) 
[ 49.279886][ T635] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 49.280193][ T635] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 49.280532][ T635] __sys_sendmsg (net/socket.c:2700) 
[ 49.280840][ T635] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 49.281142][ T635] ? 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) 
[ 49.281455][ T635] ? 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) 
[ 49.281769][ T635] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 49.282081][ T635] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 49.282390][ T635] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   49.282788][  T635] RIP: 0033:0x7f924b2101e7
[ 49.283116][ T635] 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)
[   49.284217][  T635] RSP: 002b:00007fffaff88fa8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   49.284695][  T635] RAX: ffffffffffffffda RBX: 00007fffaff896d0 RCX: 00007f924b2101e7
[   49.285161][  T635] RDX: 0000000000000000 RSI: 00007fffaff89010 RDI: 0000000000000005
[   49.285625][  T635] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   49.286083][  T635] R10: 00007f924b1086f8 R11: 0000000000000246 R12: 00007fffaff89700
[   49.286554][  T635] R13: 00000000686e2c2a R14: 0000000000499600 R15: 00007fffaff89104
| [   50.675837][  T651] ------------[ cut here ]------------
| [ 50.676251][ T651] WARNING: CPU: 1 PID: 651 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) 
| [   50.676863][  T651] Modules linked in: ip_gre gre
| [   50.677810][  T651] Tainted: [W]=WARN
[   50.678045][  T651] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 50.678429][ T651] 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) 
[ 50.678754][ T651] Code: 00 00 8b 05 97 05 bc 02 85 c0 0f 84 52 fe ff ff 48 8d bb c0 0c 00 00 be ff ff ff ff e8 fa fd 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 97 05 bc 02    	mov    0x2bc0597(%rip),%eax        # 0x2bc059f
   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 fa fd 9b 00       	call   0x9bfe1b
  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
[   50.679877][  T651] RSP: 0018:ffffc90001757000 EFLAGS: 00010246
[   50.680265][  T651] RAX: 0000000000000000 RBX: ffff88800948c000 RCX: 0000000000000001
[   50.681887][  T651] RDX: 0000000000000000 RSI: ffffffffb9310759 RDI: ffffffffb8a58280
[   50.682349][  T651] RBP: ffffc900017570e8 R08: ffff88800948c218 R09: 0000000000000000
[   50.682817][  T651] R10: ffffc90001757118 R11: ec44478e3abaae98 R12: 1ffff920002eae04
[   50.683279][  T651] R13: 00000000000005b6 R14: ffffc90001757118 R15: ffff88800948c218
[   50.683752][  T651] FS:  00007f215a14e800(0000) GS:ffff8880b1619000(0000) knlGS:0000000000000000
[   50.684284][  T651] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   50.684678][  T651] CR2: 0000000000436890 CR3: 00000000054ea006 CR4: 0000000000772ef0
[   50.685136][  T651] PKRU: 55555554
[   50.685363][  T651] Call Trace:
[   50.685597][  T651]  <TASK>
[ 50.685757][ T651] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 50.686066][ T651] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 50.686373][ T651] ? crng_make_state (drivers/char/random.c:393 (discriminator 1)) 
[ 50.686688][ T651] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4475) 
[ 50.687000][ T651] netif_set_mtu (net/core/dev.c:9652) 
[ 50.687302][ T651] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 50.687631][ T651] ? dev_addr_mod (net/core/dev_addr_lists.c:584) 
[ 50.687944][ T651] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 50.688175][ T651] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 50.688506][ T651] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 50.688817][ T651] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 50.689132][ T651] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 50.689517][ T651] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 50.689829][ T651] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 50.690137][ T651] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 50.690442][ T651] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 50.690753][ T651] ? __dev_get_by_name (net/core/dev.c:865) 
[ 50.691066][ T651] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 50.691371][ T651] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 50.691696][ T651] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 50.692005][ T651] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 50.692313][ T651] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 50.692635][ T651] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 50.692943][ T651] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 50.693274][ T651] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 50.693589][ T651] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 50.693897][ T651] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 50.694202][ T651] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 50.694518][ T651] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 50.694827][ T651] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 50.695137][ T651] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 50.695441][ T651] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 50.695763][ T651] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 50.696091][ T651] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 50.696392][ T651] ? 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) 
[ 50.696705][ T651] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 50.697012][ T651] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 50.697315][ T651] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 50.697637][ T651] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 50.697946][ T651] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 50.698258][ T651] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 50.698577][ T651] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 50.698884][ T651] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 50.699185][ T651] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 50.699591][ T651] ___sys_sendmsg (net/socket.c:2670) 
[ 50.699898][ T651] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 50.700200][ T651] ? __pfx_handle_pte_fault (mm/memory.c:6026) 
[ 50.700517][ T651] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 50.700819][ T651] ? do_user_addr_fault (arch/x86/mm/fault.c:1327) 
[ 50.701126][ T651] ? __handle_mm_fault (mm/memory.c:6212) 
[ 50.701431][ T651] ? __pfx___handle_mm_fault (mm/memory.c:6121) 
[ 50.701742][ T651] ? lock_vma_under_rcu (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 mm/mmap_lock.c:171) 
[ 50.702069][ T651] __sys_sendmsg (net/socket.c:2700) 
[ 50.702379][ T651] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 50.702690][ T651] ? 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) 
[ 50.703004][ T651] ? 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) 
[ 50.703310][ T651] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 50.703642][ T651] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 50.703950][ T651] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   50.704328][  T651] RIP: 0033:0x7f215a31b1e7
[ 50.704656][ T651] 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)
[   50.705748][  T651] RSP: 002b:00007fff25f98868 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   50.706207][  T651] RAX: ffffffffffffffda RBX: 00007fff25f98f90 RCX: 00007f215a31b1e7
[   50.706672][  T651] RDX: 0000000000000000 RSI: 00007fff25f988d0 RDI: 0000000000000005
[   50.707130][  T651] RBP: 0000000000000004 R08: 00000000000000b0 R09: 0000000000000000
[   50.707603][  T651] R10: 00007f215a2136f8 R11: 0000000000000246 R12: 00007fff25f98fc0


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