======================================
| [   21.490633][  T321] ip_gre: GRE over IPv4 tunneling driver
| [   21.553781][  T320] ------------[ cut here ]------------
| [ 21.554585][ T320] WARNING: CPU: 0 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) 
| [   21.555695][  T320] Modules linked in: ip_gre gre 8021q vrf veth
[   21.557513][  T320] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 21.558221][ 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) 
[ 21.558812][ 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
[   21.560750][  T320] RSP: 0018:ffffc90000557000 EFLAGS: 00010246
[   21.561464][  T320] RAX: 0000000000000000 RBX: ffff88800bdcc000 RCX: 0000000000000001
[   21.562332][  T320] RDX: 0000000000000000 RSI: ffffffff9c69b941 RDI: ffffffff9be555e0
[   21.563169][  T320] RBP: ffffc900005570e8 R08: ffff88800bdcc218 R09: 0000000000000000
[   21.564036][  T320] R10: ffffc90000557118 R11: ffffffff9cb79160 R12: 1ffff920000aae04
[   21.564898][  T320] R13: 000000000000ffe7 R14: ffffc90000557118 R15: ffff88800bdcc218
[   21.565749][  T320] FS:  00007f560ef76800(0000) GS:ffff888097ab7000(0000) knlGS:0000000000000000
[   21.566708][  T320] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.567448][  T320] CR2: 00007f84bec41270 CR3: 0000000004ffb005 CR4: 0000000000772ef0
[   21.568664][  T320] PKRU: 55555554
[   21.569096][  T320] Call Trace:
[   21.569514][  T320]  <TASK>
[ 21.569817][ T320] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 21.576898][ T320] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 21.577466][ T320] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.578039][ T320] netif_set_mtu (net/core/dev.c:9652) 
[ 21.579023][ T320] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 21.579624][ T320] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 21.580045][ T320] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 21.580585][ T320] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 21.581098][ T320] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 21.582018][ T320] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 21.582729][ T320] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 21.583295][ T320] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 21.583851][ T320] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 21.584403][ T320] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 21.584969][ T320] ? __dev_get_by_name (net/core/dev.c:865) 
[ 21.585500][ T320] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 21.586044][ T320] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 21.586597][ T320] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 21.587145][ T320] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 21.587685][ T320] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 21.588630][ T320] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 21.589174][ T320] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.589780][ T320] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 21.590336][ T320] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.591297][ T320] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.591858][ T320] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 21.592794][ T320] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.593360][ T320] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.593934][ T320] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 21.594512][ T320] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.595350][ T320] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 21.595934][ T320] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 21.596471][ 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) 
[ 21.597042][ T320] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 21.597603][ T320] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 21.598149][ T320] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.599456][ T320] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 21.600034][ T320] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 21.600602][ T320] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 21.601580][ T320] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 21.602120][ T320] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 21.602683][ T320] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 21.603389][ T320] ___sys_sendmsg (net/socket.c:2670) 
[ 21.603947][ T320] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 21.604921][ 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) 
[ 21.605621][ T320] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 21.606180][ T320] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.606773][ T320] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.607369][ T320] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.607695][ 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) 
[ 21.608011][ T320] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.608331][ T320] __sys_sendmsg (net/socket.c:2700) 
[ 21.608649][ T320] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 21.609258][ T320] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 21.609592][ T320] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.609911][ T320] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 21.610440][ T320] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   21.610833][  T320] RIP: 0033:0x7f560f1431e7
[ 21.611162][ T320] Code: Unable to access opcode bytes at 0x7f560f1431bd.

Code starting with the faulting instruction
===========================================
[   21.611571][  T320] RSP: 002b:00007ffc7e52e788 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   21.612041][  T320] RAX: ffffffffffffffda RBX: 00007ffc7e52eeb0 RCX: 00007f560f1431e7
[   21.612505][  T320] RDX: 0000000000000000 RSI: 00007ffc7e52e7f0 RDI: 0000000000000005
[   21.612980][  T320] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000078
[   21.613449][  T320] R10: 00007f560f040ee8 R11: 0000000000000246 R12: 00007ffc7e52eed0
[   21.613927][  T320] R13: 00000000686e3b78 R14: 0000000000499600 R15: 00007ffc7e52e8d4
| [   22.421551][  T332] ------------[ cut here ]------------
| [ 22.422051][ T332] WARNING: CPU: 2 PID: 332 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) 
| [   22.422767][  T332] Modules linked in: ip_gre gre 8021q vrf veth
| [   22.423912][  T332] Tainted: [W]=WARN
[   22.424188][  T332] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 22.424623][ T332] 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) 
[ 22.424981][ T332] 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
[   22.426193][  T332] RSP: 0018:ffffc90000577000 EFLAGS: 00010246
[   22.426646][  T332] RAX: 0000000000000000 RBX: ffff88800e1a9000 RCX: 0000000000000001
[   22.427178][  T332] RDX: 0000000000000000 RSI: ffffffff9c69b941 RDI: ffffffff9be555e0
[   22.427705][  T332] RBP: ffffc900005770e8 R08: ffff88800e1a9218 R09: 0000000000000000
[   22.428213][  T332] R10: ffffc90000577118 R11: ffffffff9cb79160 R12: 1ffff920000aee04
[   22.428726][  T332] R13: 000000000000ffe7 R14: ffffc90000577118 R15: ffff88800e1a9218
[   22.429234][  T332] FS:  00007ffad560c800(0000) GS:ffff888097bb7000(0000) knlGS:0000000000000000
[   22.429835][  T332] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   22.430267][  T332] CR2: 00007f84beeb1a00 CR3: 0000000008cc8004 CR4: 0000000000772ef0
[   22.430787][  T332] PKRU: 55555554
[   22.431040][  T332] Call Trace:
[   22.431299][  T332]  <TASK>
[ 22.431476][ T332] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 22.431909][ T332] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 22.432257][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.432627][ T332] netif_set_mtu (net/core/dev.c:9652) 
[ 22.432973][ T332] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 22.433328][ T332] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 22.433627][ T332] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 22.434013][ T332] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 22.434351][ T332] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 22.434711][ T332] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 22.435117][ T332] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 22.435445][ T332] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 22.435819][ T332] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 22.436162][ T332] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 22.436497][ T332] ? __dev_get_by_name (net/core/dev.c:865) 
[ 22.436877][ T332] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 22.437228][ T332] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 22.437603][ T332] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 22.437937][ T332] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 22.438268][ T332] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 22.438612][ T332] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 22.438966][ T332] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.439306][ T332] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 22.439638][ T332] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.439971][ T332] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 22.440291][ T332] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 22.440621][ T332] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.440942][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.441265][ T332] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 22.441599][ T332] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 22.441971][ T332] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 22.442321][ T332] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 22.442663][ T332] ? 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) 
[ 22.443024][ T332] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 22.443346][ T332] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 22.443685][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.444014][ T332] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 22.444337][ T332] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 22.444686][ T332] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 22.445038][ T332] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 22.445375][ T332] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 22.445726][ T332] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 22.446139][ T332] ___sys_sendmsg (net/socket.c:2670) 
[ 22.446457][ T332] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 22.446813][ T332] ? __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) 
[ 22.447221][ T332] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 22.447552][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.447902][ T332] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 22.448231][ T332] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 22.448552][ T332] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 22.448899][ T332] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 22.449229][ T332] __sys_sendmsg (net/socket.c:2700) 
[ 22.449546][ T332] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 22.449961][ T332] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 22.450312][ T332] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 22.450662][ T332] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 22.451000][ T332] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   22.451417][  T332] RIP: 0033:0x7ffad57d91e7
[ 22.451782][ T332] 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)
[   22.452967][  T332] RSP: 002b:00007fff492d08a8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   22.453446][  T332] RAX: ffffffffffffffda RBX: 00007fff492d0fd0 RCX: 00007ffad57d91e7
[   22.453929][  T332] RDX: 0000000000000000 RSI: 00007fff492d0910 RDI: 0000000000000005
[   22.454417][  T332] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000078
[   22.454913][  T332] R10: 00007ffad56d6ee8 R11: 0000000000000246 R12: 00007fff492d0ff0
[   22.455397][  T332] R13: 00000000686e3b79 R14: 0000000000499600 R15: 00007fff492d09f4
| [   25.995837][  T365] ------------[ cut here ]------------
| [ 25.996269][ T365] WARNING: CPU: 3 PID: 365 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) 
| [   25.997363][  T365] Modules linked in: ip_gre gre 8021q vrf veth
| [   25.998406][  T365] Tainted: [W]=WARN
[   25.998649][  T365] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.999040][ T365] 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) 
[ 25.999368][ T365] 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
[   26.000485][  T365] RSP: 0018:ffffc900006a7000 EFLAGS: 00010246
[   26.000890][  T365] RAX: 0000000000000000 RBX: ffff888004f09000 RCX: 0000000000000001
[   26.001356][  T365] RDX: 0000000000000000 RSI: ffffffff9c69b941 RDI: ffffffff9be555e0
[   26.001833][  T365] RBP: ffffc900006a70e8 R08: ffff888004f09218 R09: 0000000000000000
[   26.002298][  T365] R10: ffffc900006a7118 R11: ffffffff9cb79160 R12: 1ffff920000d4e04
[   26.002767][  T365] R13: 000000000000ffe7 R14: ffffc900006a7118 R15: ffff888004f09218
[   26.003234][  T365] FS:  00007f3f1edf3800(0000) GS:ffff888097c37000(0000) knlGS:0000000000000000
[   26.003781][  T365] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.004182][  T365] CR2: 00000000004e73d0 CR3: 000000000e847005 CR4: 0000000000772ef0
[   26.004649][  T365] PKRU: 55555554
[   26.004881][  T365] Call Trace:
[   26.005114][  T365]  <TASK>
[ 26.005306][ T365] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 26.005849][ T365] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 26.006160][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.006477][ T365] netif_set_mtu (net/core/dev.c:9652) 
[ 26.006815][ T365] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 26.007140][ T365] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 26.007372][ T365] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 26.007691][ T365] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 26.008003][ T365] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 26.008313][ T365] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 26.008745][ T365] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 26.009070][ T365] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 26.009378][ T365] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 26.009697][ T365] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 26.010000][ T365] ? __dev_get_by_name (net/core/dev.c:865) 
[ 26.010308][ T365] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 26.010626][ T365] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 26.010937][ T365] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 26.011247][ T365] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 26.011589][ T365] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 26.011909][ T365] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 26.012219][ T365] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.012538][ T365] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 26.012849][ T365] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.013156][ T365] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.013458][ T365] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 26.013783][ T365] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.014093][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.014404][ T365] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 26.014720][ T365] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.015026][ T365] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 26.015341][ T365] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 26.015653][ T365] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 26.015963][ T365] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 26.016271][ T365] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 26.016587][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.016912][ T365] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 26.017221][ T365] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 26.017527][ T365] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 26.017852][ T365] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 26.018171][ T365] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 26.018475][ T365] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 26.018879][ T365] ___sys_sendmsg (net/socket.c:2670) 
[ 26.019181][ T365] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 26.019485][ T365] ? __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) 
[ 26.019878][ T365] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 26.020189][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.020504][ T365] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.020826][ T365] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.021132][ T365] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 26.021436][ T365] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.021760][ T365] __sys_sendmsg (net/socket.c:2700) 
[ 26.022063][ T365] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 26.022438][ T365] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 26.022769][ T365] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.023076][ T365] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 26.023385][ T365] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   26.023772][  T365] RIP: 0033:0x7f3f1efc01e7
[ 26.024088][ T365] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   26.025511][  T365] RSP: 002b:00007ffd5cb30c08 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   26.026080][  T365] RAX: ffffffffffffffda RBX: 00007ffd5cb31330 RCX: 00007f3f1efc01e7
[   26.026533][  T365] RDX: 0000000000000000 RSI: 00007ffd5cb30c70 RDI: 0000000000000005
[   26.027029][  T365] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000078
[   26.027489][  T365] R10: 00007f3f1eebdee8 R11: 0000000000000246 R12: 00007ffd5cb31350
[   26.027953][  T365] R13: 00000000686e3b7c R14: 0000000000499600 R15: 00007ffd5cb30d54
| [   26.751818][  T372] ------------[ cut here ]------------
| [ 26.752209][ T372] WARNING: CPU: 2 PID: 372 at ./include/net/netdev_lock.h:17 netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
| [   26.752850][  T372] Modules linked in: ip_gre gre 8021q vrf veth
| [   26.753911][  T372] Tainted: [W]=WARN
[   26.754166][  T372] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 26.754584][ T372] RIP: 0010:netif_set_mtu_ext (./include/net/netdev_lock.h:17 ./include/net/netdev_lock.h:15 ./include/net/netdev_lock.h:25 net/core/dev.c:9610) 
[ 26.754914][ T372] 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
[   26.756024][  T372] RSP: 0018:ffffc90000807000 EFLAGS: 00010246
[   26.756429][  T372] RAX: 0000000000000000 RBX: ffff88800a179000 RCX: 0000000000000001
[   26.756924][  T372] RDX: 0000000000000000 RSI: ffffffff9c69b941 RDI: ffffffff9be555e0
[   26.757393][  T372] RBP: ffffc900008070e8 R08: ffff88800a179218 R09: 0000000000000000
[   26.757873][  T372] R10: ffffc90000807118 R11: ffffffff9cb79160 R12: 1ffff92000100e04
[   26.758349][  T372] R13: 000000000000ffe7 R14: ffffc90000807118 R15: ffff88800a179218
[   26.758834][  T372] FS:  00007f19a164b800(0000) GS:ffff888097bb7000(0000) knlGS:0000000000000000
[   26.759384][  T372] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.759790][  T372] CR2: 00000000004e73d0 CR3: 000000000e845001 CR4: 0000000000772ef0
[   26.760269][  T372] PKRU: 55555554
[   26.760511][  T372] Call Trace:
[   26.760767][  T372]  <TASK>
[ 26.760937][ T372] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 26.761338][ T372] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 26.761669][ T372] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.762005][ T372] netif_set_mtu (net/core/dev.c:9652) 
[ 26.762325][ T372] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 26.762672][ T372] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 26.762919][ T372] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 26.763239][ T372] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 26.763575][ T372] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 26.763900][ T372] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 26.764290][ T372] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 26.764628][ T372] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 26.764949][ T372] rtnl_newlink_create (net/core/rtnetlink.c:3825) 
[ 26.765276][ T372] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 26.765601][ T372] ? __dev_get_by_name (net/core/dev.c:865) 
[ 26.765919][ T372] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 26.766235][ T372] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 26.766554][ T372] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 26.766892][ T372] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 26.767215][ T372] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 26.767550][ T372] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 26.767883][ T372] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.768215][ T372] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 26.768529][ T372] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.768861][ T372] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 26.769179][ T372] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 26.769501][ T372] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.769831][ T372] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.770161][ T372] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 26.770480][ T372] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 26.770810][ T372] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 26.771139][ T372] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 26.771453][ T372] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 ./include/net/netns/generic.h:48 net/netlink/af_netlink.c:333) 
[ 26.771781][ T372] netlink_unicast (net/netlink/af_netlink.c:1320 net/netlink/af_netlink.c:1346) 
[ 26.772102][ T372] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 26.772423][ T372] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.772759][ T372] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 26.773080][ T372] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 26.773398][ T372] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 26.773736][ T372] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 26.774061][ T372] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 26.774378][ T372] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 26.774838][ T372] ___sys_sendmsg (net/socket.c:2670) 
[ 26.775157][ T372] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 26.775472][ T372] ? __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) 
[ 26.775879][ T372] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 26.776199][ T372] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.776521][ T372] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 26.776873][ T372] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 26.777199][ T372] ? __virt_addr_valid (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:953 ./include/linux/mmzone.h:2168 arch/x86/mm/physaddr.c:65) 
[ 26.777554][ T372] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 26.777899][ T372] __sys_sendmsg (net/socket.c:2700) 
[ 26.778220][ T372] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 26.778618][ T372] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 26.778949][ T372] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 26.779270][ T372] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 26.779606][ T372] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   26.779999][  T372] RIP: 0033:0x7f19a18181e7
[ 26.780325][ T372] Code: 0e 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b9 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2e 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 89 54 24 1c 48 89 74 24 10
All code
========
   0:	0e                   	(bad)
   1:	00 f7                	add    %dh,%bh
   3:	d8 64 89 02          	fsubs  0x2(%rcx,%rcx,4)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b9                	jmp    0xffffffffffffffc9
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 2e 00 00 00       	mov    $0x2e,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 28          	sub    $0x28,%rsp
  37:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  3b:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 28          	sub    $0x28,%rsp
   d:	89 54 24 1c          	mov    %edx,0x1c(%rsp)
  11:	48 89 74 24 10       	mov    %rsi,0x10(%rsp)
[   26.781432][  T372] RSP: 002b:00007fff0cb95118 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   26.781923][  T372] RAX: ffffffffffffffda RBX: 00007fff0cb95840 RCX: 00007f19a18181e7
[   26.782393][  T372] RDX: 0000000000000000 RSI: 00007fff0cb95180 RDI: 0000000000000005
[   26.782877][  T372] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000078
[   26.783345][  T372] R10: 00007f19a1715ee8 R11: 0000000000000246 R12: 00007fff0cb95860


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