[  420.136429] ip (5249) used greatest stack depth: 11936 bytes left
[  420.237976] gre: GRE over IPv4 demultiplexer driver
[  420.242016] ip6_gre: GRE over IPv6 tunneling driver
[  420.247006] ip6_tunnel: g1 xmit: Local address not yet configured!
[  420.250180] ip6_tunnel: g1 xmit: Local address not yet configured!
[  420.409928] ip6_tunnel: g2 xmit: Local address not yet configured!
[  420.412553] ip6_tunnel: g2 xmit: Local address not yet configured!