[ 4432.551785][T25981] gre: GRE over IPv4 demultiplexor driver
[ 4434.551273][T26004] ip_gre: GRE over IPv4 tunneling driver
[ 4493.688044][T26576] ip6_gre: GRE over IPv6 tunneling driver
[ 4519.255439][T26825] ping (26825) used greatest stack depth: 23616 bytes left
[ 4534.256542][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4539.952427][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4544.880423][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4550.576418][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4756.785490][   T64] kworker/3:2 (64) used greatest stack depth: 23600 bytes left