[    2.143547] gre: GRE over IPv4 demultiplexer driver
[    2.165797] ip (200) used greatest stack depth: 12560 bytes left
[    2.197794] ip_gre: GRE over IPv4 tunneling driver
[    2.382833] ip (248) used greatest stack depth: 12352 bytes left
[    8.405451] ip6_gre: GRE over IPv6 tunneling driver
[   12.047814] ip6_tunnel: tep0 xmit: Local address not yet configured!
[   13.200812] ip6_tunnel: tep0 xmit: Local address not yet configured!
[   14.352810] ip6_tunnel: tep0 xmit: Local address not yet configured!
[   15.503813] ip6_tunnel: tep0 xmit: Local address not yet configured!
[   22.007150] ping (2167) used greatest stack depth: 12280 bytes left