[  975.831589][ T7590] gre: GRE over IPv4 demultiplexor driver
[  977.943846][ T7614] ip_gre: GRE over IPv4 tunneling driver
[  983.580568][ T7671] ip (7671) used greatest stack depth: 23808 bytes left
[  985.257875][ T7679] ping (7679) used greatest stack depth: 23384 bytes left
[ 1038.808589][ T8189] ip6_gre: GRE over IPv6 tunneling driver
[ 1074.754726][ T8532] ping (8532) used greatest stack depth: 23360 bytes left
[ 1080.751428][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1086.704352][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1091.759366][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1097.776348][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!