======================================
| [   20.792120][  T321] ip_gre: GRE over IPv4 tunneling driver
| [   20.862843][  T320] ------------[ cut here ]------------
| [ 20.863799][ 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) 
| [   20.864438][  T320] Modules linked in: ip_gre gre 8021q vrf veth
[   20.866100][  T320] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 20.866670][ 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) 
[ 20.867016][ T320] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   20.868150][  T320] RSP: 0018:ffffc90000607000 EFLAGS: 00010246
[   20.868579][  T320] RAX: 0000000000000000 RBX: ffff88800bab1000 RCX: 0000000000000001
[   20.869060][  T320] RDX: 0000000000000000 RSI: ffffffff8aa9b939 RDI: ffffffff8a2555e0
[   20.869562][  T320] RBP: ffffc900006070e8 R08: ffff88800bab1218 R09: 0000000000000000
[   20.870038][  T320] R10: ffffc90000607118 R11: ffffffff8af79160 R12: 1ffff920000c0e04
[   20.870548][  T320] R13: 000000000000ffe7 R14: ffffc90000607118 R15: ffff88800bab1218
[   20.871131][  T320] FS:  00007f1dbf3b1800(0000) GS:ffff8880a97b7000(0000) knlGS:0000000000000000
[   20.871722][  T320] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   20.872127][  T320] CR2: 00007f3df16a0bd0 CR3: 000000000a812005 CR4: 0000000000772ef0
[   20.872629][  T320] PKRU: 55555554
[   20.872876][  T320] Call Trace:
[   20.873125][  T320]  <TASK>
[ 20.873313][ T320] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 20.873738][ T320] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 20.874064][ T320] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.874429][ T320] netif_set_mtu (net/core/dev.c:9652) 
[ 20.874766][ T320] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 20.875104][ T320] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 20.875623][ T320] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 20.875953][ T320] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 20.876298][ T320] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 20.878866][ T320] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 20.879268][ T320] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 20.879596][ T320] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 20.879918][ T320] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 20.880248][ T320] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 20.880795][ T320] ? __dev_get_by_name (net/core/dev.c:865) 
[ 20.881128][ T320] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.881462][ T320] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 20.881784][ T320] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 20.882099][ T320] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 20.882435][ T320] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 20.882762][ T320] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 20.883082][ T320] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.883426][ T320] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 20.883742][ T320] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.884080][ T320] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 20.885069][ T320] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 20.885400][ T320] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.885722][ T320] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.886280][ T320] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 20.886599][ T320] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 20.886924][ T320] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 20.887267][ T320] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 20.887810][ 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) 
[ 20.888130][ T320] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 20.888464][ T320] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 20.888785][ T320] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.889110][ T320] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 20.889449][ T320] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 20.889769][ T320] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 20.890105][ T320] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 20.890439][ T320] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 20.890755][ T320] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 20.891179][ T320] ___sys_sendmsg (net/socket.c:2670) 
[ 20.891504][ T320] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 20.891834][ 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) 
[ 20.892242][ T320] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 20.892569][ T320] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.892894][ T320] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 20.893230][ T320] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 20.893551][ 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) 
[ 20.893872][ T320] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 20.894200][ T320] __sys_sendmsg (net/socket.c:2700) 
[ 20.894542][ T320] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 20.894937][ T320] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 20.895281][ T320] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 20.895601][ T320] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 20.895923][ T320] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   20.896322][  T320] RIP: 0033:0x7f1dbf57e1e7
[ 20.896664][ T320] Code: Unable to access opcode bytes at 0x7f1dbf57e1bd.

Code starting with the faulting instruction
===========================================
[   20.897084][  T320] RSP: 002b:00007ffd81aa5668 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   20.897571][  T320] RAX: ffffffffffffffda RBX: 00007ffd81aa5d90 RCX: 00007f1dbf57e1e7
[   20.898043][  T320] RDX: 0000000000000000 RSI: 00007ffd81aa56d0 RDI: 0000000000000005
[   20.898529][  T320] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000078
[   20.899005][  T320] R10: 00007f1dbf47bee8 R11: 0000000000000246 R12: 00007ffd81aa5db0
[   20.899588][  T320] R13: 00000000686e7028 R14: 0000000000499600 R15: 00007ffd81aa57b4
| [   21.721548][  T331] ------------[ cut here ]------------
| [ 21.721922][ 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) 
| [   21.722572][  T331] Modules linked in: ip_gre gre 8021q vrf veth
| [   21.723644][  T331] Tainted: [W]=WARN
[   21.723905][  T331] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 21.724314][ 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) 
[ 21.724650][ T331] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   21.725771][  T331] RSP: 0018:ffffc900005f7000 EFLAGS: 00010246
[   21.726178][  T331] RAX: 0000000000000000 RBX: ffff88800bab4000 RCX: 0000000000000001
[   21.726675][  T331] RDX: 0000000000000000 RSI: ffffffff8aa9b939 RDI: ffffffff8a2555e0
[   21.727151][  T331] RBP: ffffc900005f70e8 R08: ffff88800bab4218 R09: 0000000000000000
[   21.727631][  T331] R10: ffffc900005f7118 R11: ffffffff8af79160 R12: 1ffff920000bee04
[   21.728107][  T331] R13: 000000000000ffe7 R14: ffffc900005f7118 R15: ffff88800bab4218
[   21.728590][  T331] FS:  00007fe9539bd800(0000) GS:ffff8880a97b7000(0000) knlGS:0000000000000000
[   21.729140][  T331] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   21.729548][  T331] CR2: 00000000004e7390 CR3: 0000000002ab1004 CR4: 0000000000772ef0
[   21.730022][  T331] PKRU: 55555554
[   21.730282][  T331] Call Trace:
[   21.730526][  T331]  <TASK>
[ 21.730700][ T331] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 21.731115][ T331] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 21.731451][ T331] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.731780][ T331] netif_set_mtu (net/core/dev.c:9652) 
[ 21.732105][ T331] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 21.732461][ T331] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 21.732707][ T331] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 21.733022][ T331] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 21.733358][ T331] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 21.733678][ T331] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 21.734070][ T331] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 21.734414][ T331] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 21.734742][ T331] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 21.735061][ T331] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 21.735387][ T331] ? __dev_get_by_name (net/core/dev.c:865) 
[ 21.735704][ T331] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 21.736024][ T331] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 21.736359][ T331] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 21.736684][ T331] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 21.737013][ T331] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 21.737352][ T331] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 21.737677][ T331] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.738007][ T331] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 21.738355][ T331] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.738678][ T331] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 21.738994][ T331] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 21.739326][ T331] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.739651][ T331] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.739974][ T331] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 21.740302][ T331] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 21.740625][ T331] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 21.740963][ T331] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 21.741300][ 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) 
[ 21.741619][ T331] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 21.741945][ T331] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 21.742280][ T331] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.742609][ T331] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 21.742930][ T331] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 21.743262][ T331] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 21.743589][ T331] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 21.743912][ T331] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 21.744247][ T331] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 21.744652][ T331] ___sys_sendmsg (net/socket.c:2670) 
[ 21.744970][ T331] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 21.745296][ 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) 
[ 21.745691][ T331] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 21.746011][ T331] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.746348][ T331] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 21.746675][ T331] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 21.746997][ 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) 
[ 21.747326][ T331] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 21.747655][ T331] __sys_sendmsg (net/socket.c:2700) 
[ 21.747972][ T331] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 21.748373][ T331] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 21.748702][ T331] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 21.749023][ T331] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 21.749376][ T331] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   21.749769][  T331] RIP: 0033:0x7fe953b8a1e7
[ 21.750096][ 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)
[   21.751239][  T331] RSP: 002b:00007ffdfa718ff8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   21.751721][  T331] RAX: ffffffffffffffda RBX: 00007ffdfa719720 RCX: 00007fe953b8a1e7
[   21.752192][  T331] RDX: 0000000000000000 RSI: 00007ffdfa719060 RDI: 0000000000000005
[   21.752671][  T331] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000078
[   21.753139][  T331] R10: 00007fe953a87ee8 R11: 0000000000000246 R12: 00007ffdfa719740
[   21.753624][  T331] R13: 00000000686e7029 R14: 0000000000499600 R15: 00007ffdfa719144
| [   25.209668][  T364] ------------[ cut here ]------------
| [ 25.210099][ 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) 
| [   25.210728][  T364] Modules linked in: ip_gre gre 8021q vrf veth
| [   25.211837][  T364] Tainted: [W]=WARN
[   25.212071][  T364] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.212459][ 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) 
[ 25.212789][ T364] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   25.213932][  T364] RSP: 0018:ffffc90000587000 EFLAGS: 00010246
[   25.214341][  T364] RAX: 0000000000000000 RBX: ffff88800209c000 RCX: 0000000000000001
[   25.214797][  T364] RDX: 0000000000000000 RSI: ffffffff8aa9b939 RDI: ffffffff8a2555e0
[   25.215266][  T364] RBP: ffffc900005870e8 R08: ffff88800209c218 R09: 0000000000000000
[   25.215745][  T364] R10: ffffc90000587118 R11: ffffffff8af79160 R12: 1ffff920000b0e04
[   25.216213][  T364] R13: 000000000000ffe7 R14: ffffc90000587118 R15: ffff88800209c218
[   25.216698][  T364] FS:  00007f25a5a81800(0000) GS:ffff8880a96b7000(0000) knlGS:0000000000000000
[   25.217242][  T364] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.217646][  T364] CR2: 00007f3df150ea00 CR3: 000000000e2a0006 CR4: 0000000000772ef0
[   25.218129][  T364] PKRU: 55555554
[   25.218367][  T364] Call Trace:
[   25.218609][  T364]  <TASK>
[ 25.218766][ T364] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 25.219161][ T364] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 25.219477][ T364] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.219795][ T364] netif_set_mtu (net/core/dev.c:9652) 
[ 25.220101][ T364] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 25.220431][ T364] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 25.220678][ T364] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 25.221021][ T364] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 25.221365][ T364] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 25.221707][ T364] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 25.222098][ T364] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 25.222424][ T364] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 25.222750][ T364] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 25.223057][ T364] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 25.223369][ T364] ? __dev_get_by_name (net/core/dev.c:865) 
[ 25.223686][ T364] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 25.223995][ T364] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 25.224318][ T364] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 25.224639][ T364] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 25.224964][ T364] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 25.225290][ T364] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 25.225613][ T364] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.225936][ T364] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 25.226250][ T364] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.226572][ T364] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.226880][ T364] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 25.227185][ T364] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.227517][ T364] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.227831][ T364] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 25.228136][ T364] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.228464][ T364] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 25.228794][ T364] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 25.229107][ 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) 
[ 25.229428][ T364] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 25.229738][ T364] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 25.230055][ T364] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.230373][ T364] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 25.230682][ T364] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 25.231001][ T364] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 25.231341][ T364] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 25.231665][ T364] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 25.231968][ T364] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 25.232370][ T364] ___sys_sendmsg (net/socket.c:2670) 
[ 25.232675][ T364] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 25.232993][ 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) 
[ 25.233406][ T364] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 25.233728][ T364] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.234051][ T364] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.234372][ T364] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.234691][ 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) 
[ 25.234994][ T364] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.235409][ T364] __sys_sendmsg (net/socket.c:2700) 
[ 25.235734][ T364] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 25.236111][ T364] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 25.236451][ T364] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.236781][ T364] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 25.237105][ T364] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.237503][  T364] RIP: 0033:0x7f25a5c4e1e7
[ 25.237819][ 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)
[   25.238942][  T364] RSP: 002b:00007fff10c00818 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   25.239411][  T364] RAX: ffffffffffffffda RBX: 00007fff10c00f40 RCX: 00007f25a5c4e1e7
[   25.239870][  T364] RDX: 0000000000000000 RSI: 00007fff10c00880 RDI: 0000000000000005
[   25.240338][  T364] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000078
[   25.240797][  T364] R10: 00007f25a5b4bee8 R11: 0000000000000246 R12: 00007fff10c00f60
[   25.241280][  T364] R13: 00000000686e702c R14: 0000000000499600 R15: 00007fff10c00964
| [   25.934879][  T371] ------------[ cut here ]------------
| [ 25.935251][ T371] WARNING: CPU: 1 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) 
| [   25.935863][  T371] Modules linked in: ip_gre gre 8021q vrf veth
| [   25.936986][  T371] Tainted: [W]=WARN
[   25.937241][  T371] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 25.937628][ 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) 
[ 25.937946][ T371] Code: 00 00 8b 05 b7 bb 3a 02 85 c0 0f 84 52 fe ff ff 48 8d bb a0 0c 00 00 be ff ff ff ff e8 fa 61 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 b7 bb 3a 02    	mov    0x23abbb7(%rip),%eax        # 0x23abbbf
   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 fa 61 7b 00       	call   0x7b621b
  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
[   25.939302][  T371] RSP: 0018:ffffc90000887000 EFLAGS: 00010246
[   25.939697][  T371] RAX: 0000000000000000 RBX: ffff888004f31000 RCX: 0000000000000001
[   25.940391][  T371] RDX: 0000000000000000 RSI: ffffffff8aa9b939 RDI: ffffffff8a2555e0
[   25.940849][  T371] RBP: ffffc900008870e8 R08: ffff888004f31218 R09: 0000000000000000
[   25.941361][  T371] R10: ffffc90000887118 R11: ffffffff8af79160 R12: 1ffff92000110e04
[   25.941817][  T371] R13: 000000000000ffe7 R14: ffffc90000887118 R15: ffff888004f31218
[   25.942278][  T371] FS:  00007f51288f0800(0000) GS:ffff8880a9737000(0000) knlGS:0000000000000000
[   25.942811][  T371] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   25.943198][  T371] CR2: 00000000004e73d0 CR3: 000000000e29f002 CR4: 0000000000772ef0
[   25.943665][  T371] PKRU: 55555554
[   25.943894][  T371] Call Trace:
[   25.944121][  T371]  <TASK>
[ 25.944288][ T371] ? __pfx_ip_route_output_key_hash (net/ipv4/route.c:2684) 
[ 25.944676][ T371] ? __pfx_netif_set_mtu_ext (net/core/dev.c:9607) 
[ 25.944983][ T371] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.945325][ T371] netif_set_mtu (net/core/dev.c:9652) 
[ 25.945661][ T371] ? __pfx_netif_set_mtu (net/core/dev.c:9647) 
[ 25.945984][ T371] dev_set_mtu (./include/net/netdev_lock.h:30 ./include/net/netdev_lock.h:47 net/core/dev_api.c:249) 
[ 25.946226][ T371] ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1246) 
[ 25.946536][ T371] ? __pfx_ip_tunnel_newlink (net/ipv4/ip_tunnel.c:1209) 
[ 25.946874][ T371] ipgre_newlink (net/ipv4/ip_gre.c:1415 (discriminator 4)) ip_gre 
[ 25.947185][ T371] ? __pfx_ipgre_newlink (net/ipv4/ip_gre.c:1401) ip_gre 
[ 25.947583][ T371] ? __pfx_validate_linkmsg (net/core/rtnetlink.c:2660) 
[ 25.947899][ T371] ? rtnl_create_link (net/core/rtnetlink.c:3642) 
[ 25.948206][ T371] rtnl_newlink_create (net/core/rtnetlink.c:3828) 
[ 25.948523][ T371] ? __pfx_rtnl_newlink_create (net/core/rtnetlink.c:3791) 
[ 25.948823][ T371] ? __dev_get_by_name (net/core/dev.c:865) 
[ 25.949128][ T371] ? rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 25.949453][ T371] ? __pfx_rtnl_dev_get (net/core/rtnetlink.c:3404) 
[ 25.949769][ T371] ? rtnl_newlink (net/core/rtnetlink.c:343 net/core/rtnetlink.c:4056) 
[ 25.950075][ T371] ? reacquire_held_locks (kernel/locking/lockdep.c:5388) 
[ 25.950395][ T371] __rtnl_newlink (net/core/rtnetlink.c:3942) 
[ 25.950711][ T371] rtnl_newlink (net/core/rtnetlink.c:351 net/core/rtnetlink.c:4058) 
[ 25.951035][ T371] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.951365][ T371] ? rtnetlink_rcv_msg (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/core/rtnetlink.c:6944) 
[ 25.951668][ T371] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.951975][ T371] ? __pfx_rtnl_newlink (net/core/rtnetlink.c:3948) 
[ 25.952294][ T371] rtnetlink_rcv_msg (net/core/rtnetlink.c:6946) 
[ 25.952601][ T371] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.952912][ T371] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.953251][ T371] netlink_rcv_skb (net/netlink/af_netlink.c:2551) 
[ 25.953558][ T371] ? __pfx_rtnetlink_rcv_msg (net/core/rtnetlink.c:6849) 
[ 25.953866][ T371] ? __pfx_netlink_rcv_skb (net/netlink/af_netlink.c:2528) 
[ 25.954181][ T371] ? netlink_deliver_tap (./include/linux/rcupdate.h:341 ./include/linux/rcupdate.h:871 net/netlink/af_netlink.c:340) 
[ 25.954503][ 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) 
[ 25.954811][ T371] netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1346) 
[ 25.955121][ T371] ? __pfx_netlink_unicast (net/netlink/af_netlink.c:1331) 
[ 25.955438][ T371] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.955752][ T371] netlink_sendmsg (net/netlink/af_netlink.c:1896) 
[ 25.956059][ T371] ? __pfx_netlink_sendmsg (net/netlink/af_netlink.c:1815) 
[ 25.956380][ T371] ? __import_iovec (lib/iov_iter.c:1441 lib/iov_iter.c:1456) 
[ 25.956701][ T371] ____sys_sendmsg (net/socket.c:714 net/socket.c:729 net/socket.c:2614) 
[ 25.957008][ T371] ? __pfx_____sys_sendmsg (net/socket.c:2560) 
[ 25.957322][ T371] ? __pfx_copy_msghdr_from_user (net/socket.c:2540) 
[ 25.957734][ T371] ___sys_sendmsg (net/socket.c:2670) 
[ 25.958044][ T371] ? kasan_record_aux_stack (mm/kasan/generic.c:548) 
[ 25.958368][ 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) 
[ 25.958750][ T371] ? __pfx____sys_sendmsg (net/socket.c:2657) 
[ 25.959064][ T371] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.959382][ T371] ? __lock_acquire (kernel/locking/lockdep.c:5240) 
[ 25.959733][ T371] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 25.960039][ 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) 
[ 25.960354][ T371] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 25.960672][ T371] __sys_sendmsg (net/socket.c:2700) 
[ 25.960982][ T371] ? __call_rcu_common.constprop.0 (kernel/rcu/tree.c:3119) 
[ 25.961370][ T371] ? __pfx___sys_sendmsg (net/socket.c:2685) 
[ 25.961695][ T371] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 25.962003][ T371] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 25.962330][ T371] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[   25.962710][  T371] RIP: 0033:0x7f5128abd1e7
[ 25.963032][ 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)
[   25.964132][  T371] RSP: 002b:00007ffded2ef458 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
[   25.964602][  T371] RAX: ffffffffffffffda RBX: 00007ffded2efb80 RCX: 00007f5128abd1e7
[   25.965149][  T371] RDX: 0000000000000000 RSI: 00007ffded2ef4c0 RDI: 0000000000000005
[   25.965628][  T371] RBP: 0000000000000008 R08: 00000000000000b0 R09: 0000000000000078
[   25.966114][  T371] R10: 00007f51289baee8 R11: 0000000000000246 R12: 00007ffded2efba0


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