[  968.477794][ T7591] gre: GRE over IPv4 demultiplexor driver
[  970.458676][ T7615] ip_gre: GRE over IPv4 tunneling driver
[  970.850589][ T7623] ip (7623) used greatest stack depth: 24496 bytes left
[  995.832550][ T7867] ping (7867) used greatest stack depth: 24320 bytes left
[ 1022.088330][ T8130] ip (8130) used greatest stack depth: 22944 bytes left
[ 1028.988436][ T8189] ip6_gre: GRE over IPv6 tunneling driver
[ 1070.252338][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1076.077280][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1080.940315][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1086.765264][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!