[ 1587.327033][ T4828] gre: GRE over IPv4 demultiplexor driver
[ 1587.377367][ T4828] ip6_gre: GRE over IPv6 tunneling driver
[ 1587.567108][ T4833] ip (4833) used greatest stack depth: 23648 bytes left
[ 1587.740914][ T4836] ip (4836) used greatest stack depth: 23560 bytes left