[ 3817.318201][T30580] gre: GRE over IPv4 demultiplexer driver
[ 3817.349444][T30580] ip_gre: GRE over IPv4 tunneling driver
[ 3855.994272][T31075] ip6_gre: GRE over IPv6 tunneling driver
[ 3859.778889][T31125] grep (31125) used greatest stack depth: 23088 bytes left