[  643.337937] ip (8568) used greatest stack depth: 12232 bytes left
[  643.434218] gre: GRE over IPv4 demultiplexer driver
[  643.437806] ip6_gre: GRE over IPv6 tunneling driver
[  643.442189] ip6_tunnel: g1 xmit: Local address not yet configured!
[  643.446305] ip6_tunnel: g1 xmit: Local address not yet configured!
[  643.596346] ip6_tunnel: g2 xmit: Local address not yet configured!
[  643.598887] ip6_tunnel: g2 xmit: Local address not yet configured!