[ 3333.361335][T28371] gre: GRE over IPv4 demultiplexer driver
[ 3333.393263][T28371] ip_gre: GRE over IPv4 tunneling driver
[ 3372.849535][T28865] ip6_gre: GRE over IPv6 tunneling driver
[ 3410.054588][T29338] grep (29338) used greatest stack depth: 23616 bytes left