======================================
| [   20.209589][  T321] ip_gre: GRE over IPv4 tunneling driver
| [   20.256627][  T320] ------------[ cut here ]------------
| [ 20.257156][ T320] WARNING: CPU: 2 PID: 320 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   20.257898][  T320] Modules linked in: ip_gre gre 8021q vrf veth
[   20.259126][  T320] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.259593][ T320] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 20.259982][ T320] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  21:	85 c0                	test   %eax,%eax
  23:	0f 85 39 fe ff ff    	jne    0xfffffffffffffe62
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 30 fe ff ff       	jmp    0xfffffffffffffe62
  32:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  39:	fc ff df 
  3c:	4c 89 fa             	mov    %r15,%rdx
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 30 fe ff ff       	jmp    0xfffffffffffffe38
   8:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
   f:	fc ff df 
  12:	4c 89 fa             	mov    %r15,%rdx
  15:	48                   	rex.W
[   20.261223][  T320] RSP: 0018:ffffc90000b97000 EFLAGS: 00010246
[   20.261859][  T320] RAX: 0000000000000000 RBX: ffff888008f01000 RCX: 0000000000000001
[   20.262405][  T320] RDX: 0000000000000000 RSI: ffffffff94a9b941 RDI: ffffffff942555e0
[   20.262954][  T320] RBP: ffffc90000b970e8 R08: ffff888008f01218 R09: 0000000000000000
[   20.263796][  T320] R10: ffffc90000b97118 R11: ffffffff94f79160 R12: 1ffff92000172e04
[   20.264737][  T320] R13: 000000000000ffe7 R14: ffffc90000b97118 R15: ffff888008f01218
[   20.265570][  T320] FS:  00007f84fb352800(0000) GS:ffff88809f7b7000(0000) knlGS:0000000000000000
[   20.266515][  T320] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.267196][  T320] CR2: 00007ff2ab69c000 CR3: 000000000b6ff001 CR4: 0000000000772ef0
[   20.267963][  T320] PKRU: 55555554
[   20.268456][  T320] Call Trace:
[   20.268900][  T320]  <TASK>
[ 20.269110][ T320] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 20.269578][ T320] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.269943][ T320] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.270315][ T320] netif_set_mtu (net/core/dev.c:9652) 
[ 20.270700][ T320] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.271086][ T320] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.271360][ T320] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 20.274958][ T320] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 20.275584][ T320] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 20.275964][ T320] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 20.276421][ T320] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 20.276790][ T320] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 20.277176][ T320] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 20.277571][ T320] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 20.277926][ T320] ? __dev_get_by_name (net/core/dev.c:865) 
[ 20.278294][ T320] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.278888][ T320] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.279257][ T320] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.279626][ T320] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 20.279993][ T320] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 20.280368][ T320] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.280749][ T320] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.281121][ T320] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.281719][ T320] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.282085][ T320] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.282453][ T320] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.282816][ T320] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.283179][ T320] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.283780][ T320] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.284364][ T320] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.285166][ T320] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.285550][ T320] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.285908][ T320] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 20.286270][ T320] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 20.286647][ T320] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.287233][ T320] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.287614][ T320] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.287988][ T320] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.288347][ T320] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.288725][ T320] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.289750][ T320] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.290117][ T320] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.290606][ T320] ___sys_sendmsg (net/socket.c:2670) 
[ 20.291418][ T320] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.291802][ T320] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 20.292259][ T320] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.292633][ T320] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.292996][ T320] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.293360][ T320] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.293746][ T320] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 20.294107][ T320] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.294494][ T320] __sys_sendmsg (net/socket.c:2700) 
[ 20.294853][ T320] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.295308][ T320] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.295705][ T320] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.296083][ T320] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.296939][ T320] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.297409][  T320] RIP: 0033:0x7f84fb51f1e7
[ 20.297791][ T320] Code: Unable to access opcode bytes at 0x7f84fb51f1bd.

Code starting with the faulting instruction
===========================================
[   20.298264][  T320] RSP: 002b:00007ffd2c50ca98 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.299083][  T320] RAX: ffffffffffffffda RBX: 00007ffd2c50d1c0 RCX: 00007f84fb51f1e7
[   20.299648][  T320] RDX: 0000000000000000 RSI: 00007ffd2c50cb00 RDI: 0000000000000005
[   20.300198][  T320] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000078
[   20.300751][  T320] R10: 00007f84fb41cee8 R11: 0000000000000246 R12: 00007ffd2c50d1e0
[   20.301283][  T320] R13: 00000000686e4640 R14: 0000000000499600 R15: 00007ffd2c50cbe4
| [   21.091829][  T331] ------------[ cut here ]------------
| [ 21.092248][ T331] WARNING: CPU: 2 PID: 331 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) 
| [   21.092965][  T331] Modules linked in: ip_gre gre 8021q vrf veth
| [   21.094177][  T331] Tainted: [W]=WARN
[   21.094493][  T331] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 21.094942][ T331] 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) 
[ 21.095342][ T331] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   21.096627][  T331] RSP: 0018:ffffc900007e7000 EFLAGS: 00010246
[   21.097079][  T331] RAX: 0000000000000000 RBX: ffff88800e6d9000 RCX: 0000000000000001
[   21.097623][  T331] RDX: 0000000000000000 RSI: ffffffff94a9b941 RDI: ffffffff942555e0
[   21.098159][  T331] RBP: ffffc900007e70e8 R08: ffff88800e6d9218 R09: 0000000000000000
[   21.098707][  T331] R10: ffffc900007e7118 R11: ffffffff94f79160 R12: 1ffff920000fce04
[   21.099269][  T331] R13: 000000000000ffe7 R14: ffffc900007e7118 R15: ffff88800e6d9218
[   21.099810][  T331] FS:  00007fcd64828800(0000) GS:ffff88809f7b7000(0000) knlGS:0000000000000000
[   21.100436][  T331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.100884][  T331] CR2: 00007f1da141d000 CR3: 0000000004d0e006 CR4: 0000000000772ef0
[   21.101428][  T331] PKRU: 55555554
[   21.101717][  T331] Call Trace:
[   21.101988][  T331]  <TASK>
[ 21.102181][ T331] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 21.102659][ T331] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 21.103038][ T331] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.103433][ T331] netif_set_mtu (net/core/dev.c:9652) 
[ 21.103820][ T331] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 21.104209][ T331] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 21.104519][ T331] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 21.104882][ T331] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 21.105261][ T331] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 21.105641][ T331] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 21.106094][ T331] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 21.106474][ T331] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 21.106839][ T331] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 21.107203][ T331] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 21.107572][ T331] ? __dev_get_by_name (net/core/dev.c:865) 
[ 21.107933][ T331] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 21.108294][ T331] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 21.108674][ T331] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 21.109030][ T331] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 21.109406][ T331] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 21.109777][ T331] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 21.110143][ T331] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.110532][ T331] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 21.110895][ T331] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.111255][ T331] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.111635][ T331] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 21.111998][ T331] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.112371][ T331] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.112747][ T331] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 21.113108][ T331] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.113479][ T331] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 21.113851][ T331] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 21.114211][ T331] ? 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) 
[ 21.114593][ T331] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 21.114959][ T331] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 21.115326][ T331] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.115708][ T331] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 21.116079][ T331] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 21.116473][ T331] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 21.116843][ T331] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 21.117205][ T331] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 21.117576][ T331] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 21.118036][ T331] ___sys_sendmsg (net/socket.c:2670) 
[ 21.118418][ T331] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 21.118790][ T331] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 21.119266][ T331] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 21.119641][ T331] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.120005][ T331] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.120369][ T331] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.120743][ T331] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 21.121104][ T331] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.121484][ T331] __sys_sendmsg (net/socket.c:2700) 
[ 21.121868][ T331] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 21.122314][ T331] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 21.122701][ T331] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.123074][ T331] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 21.123451][ T331] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   21.123894][  T331] RIP: 0033:0x7fcd649f51e7
[ 21.124264][ T331] 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)
[   21.125507][  T331] RSP: 002b:00007ffd00a18fd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   21.126047][  T331] RAX: ffffffffffffffda RBX: 00007ffd00a19700 RCX: 00007fcd649f51e7
[   21.126587][  T331] RDX: 0000000000000000 RSI: 00007ffd00a19040 RDI: 0000000000000005
[   21.127119][  T331] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000078
[   21.127656][  T331] R10: 00007fcd648f2ee8 R11: 0000000000000246 R12: 00007ffd00a19720
[   21.128204][  T331] R13: 00000000686e4641 R14: 0000000000499600 R15: 00007ffd00a19124
| [   24.521641][  T364] ------------[ cut here ]------------
| [ 24.522032][ T364] WARNING: CPU: 0 PID: 364 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) 
| [   24.522657][  T364] Modules linked in: ip_gre gre 8021q vrf veth
| [   24.523763][  T364] Tainted: [W]=WARN
[   24.524009][  T364] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 24.524407][ T364] 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) 
[ 24.524758][ T364] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   24.525933][  T364] RSP: 0018:ffffc900006d7000 EFLAGS: 00010246
[   24.526317][  T364] RAX: 0000000000000000 RBX: ffff888008981000 RCX: 0000000000000001
[   24.526803][  T364] RDX: 0000000000000000 RSI: ffffffff94a9b941 RDI: ffffffff942555e0
[   24.527301][  T364] RBP: ffffc900006d70e8 R08: ffff888008981218 R09: 0000000000000000
[   24.527796][  T364] R10: ffffc900006d7118 R11: ffffffff94f79160 R12: 1ffff920000dae04
[   24.528325][  T364] R13: 000000000000ffe7 R14: ffffc900006d7118 R15: ffff888008981218
[   24.528797][  T364] FS:  00007f3a59d5d800(0000) GS:ffff88809f6b7000(0000) knlGS:0000000000000000
[   24.529436][  T364] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   24.529842][  T364] CR2: 00000000004e73d0 CR3: 0000000005a3a004 CR4: 0000000000772ef0
[   24.530332][  T364] PKRU: 55555554
[   24.530579][  T364] Call Trace:
[   24.530821][  T364]  <TASK>
[ 24.530982][ T364] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 24.531385][ T364] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 24.531758][ T364] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.532084][ T364] netif_set_mtu (net/core/dev.c:9652) 
[ 24.532415][ T364] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 24.532753][ T364] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 24.533000][ T364] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 24.533309][ T364] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 24.533683][ T364] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 24.534030][ T364] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 24.534424][ T364] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 24.534761][ T364] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 24.535074][ T364] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 24.535425][ T364] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 24.535773][ T364] ? __dev_get_by_name (net/core/dev.c:865) 
[ 24.536095][ T364] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 24.536436][ T364] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 24.536866][ T364] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 24.537181][ T364] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 24.537513][ T364] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 24.537853][ T364] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 24.538165][ T364] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.538502][ T364] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 24.538812][ T364] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.539128][ T364] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 24.539513][ T364] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 24.539828][ T364] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.540144][ T364] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.540468][ T364] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 24.540808][ T364] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 24.541145][ T364] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 24.541499][ T364] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 24.541820][ T364] ? 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) 
[ 24.542140][ T364] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 24.542458][ T364] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 24.542795][ T364] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.543135][ T364] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 24.543485][ T364] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 24.543823][ T364] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 24.544186][ T364] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 24.544514][ T364] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 24.544848][ T364] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 24.545242][ T364] ___sys_sendmsg (net/socket.c:2670) 
[ 24.545587][ T364] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 24.545922][ T364] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 24.546312][ T364] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 24.546641][ T364] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.547003][ T364] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 24.547330][ T364] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 24.547658][ T364] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 24.548020][ T364] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 24.548345][ T364] __sys_sendmsg (net/socket.c:2700) 
[ 24.548660][ T364] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 24.549036][ T364] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 24.549360][ T364] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 24.549689][ T364] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 24.550036][ T364] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   24.550462][  T364] RIP: 0033:0x7f3a59f2a1e7
[ 24.550785][ T364] 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)
[   24.551958][  T364] RSP: 002b:00007ffe5e2ec628 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   24.552434][  T364] RAX: ffffffffffffffda RBX: 00007ffe5e2ecd50 RCX: 00007f3a59f2a1e7
[   24.552912][  T364] RDX: 0000000000000000 RSI: 00007ffe5e2ec690 RDI: 0000000000000005
[   24.553364][  T364] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000078
[   24.553852][  T364] R10: 00007f3a59e27ee8 R11: 0000000000000246 R12: 00007ffe5e2ecd70
[   24.554359][  T364] R13: 00000000686e4645 R14: 0000000000499600 R15: 00007ffe5e2ec774
| [   25.289792][  T371] ------------[ cut here ]------------
| [ 25.290250][ T371] WARNING: CPU: 0 PID: 371 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) 
| [   25.290880][  T371] Modules linked in: ip_gre gre 8021q vrf veth
| [   25.291999][  T371] Tainted: [W]=WARN
[   25.292240][  T371] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.292643][ T371] 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) 
[ 25.293009][ T371] Code: 00 00 8b 05 d7 bc 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 1a 63 7b 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 d7 bc 3a 02    	mov    0x23abcd7(%rip),%eax        # 0x23abcdf
   8:	85 c0                	test   %eax,%eax
   a:	0f 84 52 fe ff ff    	je     0xfffffffffffffe62
  10:	48 8d bb a0 0c 00 00 	lea    0xca0(%rbx),%rdi
  17:	be ff ff ff ff       	mov    $0xffffffff,%esi
  1c:	e8 1a 63 7b 00       	call   0x7b633b
  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
[   25.294122][  T371] RSP: 0018:ffffc90000707000 EFLAGS: 00010246
[   25.294529][  T371] RAX: 0000000000000000 RBX: ffff888008a99000 RCX: 0000000000000001
[   25.295003][  T371] RDX: 0000000000000000 RSI: ffffffff94a9b941 RDI: ffffffff942555e0
[   25.296175][  T371] RBP: ffffc900007070e8 R08: ffff888008a99218 R09: 0000000000000000
[   25.296680][  T371] R10: ffffc90000707118 R11: ffffffff94f79160 R12: 1ffff920000e0e04
[   25.297169][  T371] R13: 000000000000ffe7 R14: ffffc90000707118 R15: ffff888008a99218
[   25.297633][  T371] FS:  00007f275cc76800(0000) GS:ffff88809f6b7000(0000) knlGS:0000000000000000
[   25.298166][  T371] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.298581][  T371] CR2: 00000000004e73d0 CR3: 0000000004d76003 CR4: 0000000000772ef0
[   25.299056][  T371] PKRU: 55555554
[   25.299285][  T371] Call Trace:
[   25.299526][  T371]  <TASK>
[ 25.299686][ T371] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 25.300079][ T371] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 25.300387][ T371] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.300751][ T371] netif_set_mtu (net/core/dev.c:9652) 
[ 25.301063][ T371] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 25.301420][ T371] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 25.301677][ T371] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 25.301987][ T371] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 25.302321][ T371] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 25.302638][ T371] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 25.303049][ T371] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 25.303371][ T371] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 25.303720][ T371] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 25.304089][ T371] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 25.304388][ T371] ? __dev_get_by_name (net/core/dev.c:865) 
[ 25.304706][ T371] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 25.305029][ T371] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 25.305339][ T371] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 25.305647][ T371] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 25.305976][ T371] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 25.306346][ T371] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 25.306688][ T371] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.307035][ T371] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 25.307362][ T371] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.307696][ T371] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.308021][ T371] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 25.308342][ T371] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.308665][ T371] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.308979][ T371] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 25.309324][ T371] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.309647][ T371] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 25.309989][ T371] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 25.310303][ T371] ? 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) 
[ 25.310645][ T371] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 25.310956][ T371] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 25.311257][ T371] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.311620][ T371] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 25.311953][ T371] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 25.312294][ T371] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 25.312656][ T371] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 25.312974][ T371] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 25.313284][ T371] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 25.313692][ T371] ___sys_sendmsg (net/socket.c:2670) 
[ 25.314026][ T371] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 25.314423][ T371] ? __call_rcu_common.constprop.0 (./arch/x86/include/asm/irqflags.h:26 ./arch/x86/include/asm/irqflags.h:109 ./arch/x86/include/asm/irqflags.h:127 kernel/rcu/tree.c:3096) 
[ 25.314831][ T371] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 25.315168][ T371] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.315495][ T371] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.315810][ T371] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.316129][ T371] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 25.316474][ T371] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.316798][ T371] __sys_sendmsg (net/socket.c:2700) 
[ 25.317112][ T371] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 25.317581][ T371] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 25.317915][ T371] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.318255][ T371] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 25.318584][ T371] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.318997][  T371] RIP: 0033:0x7f275ce431e7
[ 25.319317][ T371] 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)
[   25.320528][  T371] RSP: 002b:00007ffc62dc4798 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   25.321010][  T371] RAX: ffffffffffffffda RBX: 00007ffc62dc4ec0 RCX: 00007f275ce431e7
[   25.321510][  T371] RDX: 0000000000000000 RSI: 00007ffc62dc4800 RDI: 0000000000000005
[   25.322007][  T371] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000078
[   25.322529][  T371] R10: 00007f275cd40ee8 R11: 0000000000000246 R12: 00007ffc62dc4ee0


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