[ 5551.879053][T25403] ip (25403) used greatest stack depth: 23072 bytes left
[ 5552.944016][T25410] gre: GRE over IPv4 demultiplexer driver
[ 5552.975522][T25410] ip_gre: GRE over IPv4 tunneling driver
[ 5588.754697][T25808] ip6_gre: GRE over IPv6 tunneling driver