[  866.843941][T12871] gre: GRE over IPv4 demultiplexer driver
[  867.419203][T12894] ip_gre: GRE over IPv4 tunneling driver
[  867.486089][T12893] ip (12893) used greatest stack depth: 24048 bytes left
[  873.490922][T13146] ping (13146) used greatest stack depth: 23968 bytes left
[  884.541602][T13465] ip6_gre: GRE over IPv6 tunneling driver
[  889.433985][T13665] ping (13665) used greatest stack depth: 23560 bytes left
[  895.709841][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  897.822805][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  899.741785][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  901.917819][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!