[ 3323.472792][T26434] gre: GRE over IPv4 demultiplexer driver
[ 3323.501447][T26434] ip_gre: GRE over IPv4 tunneling driver
[ 3358.506645][T26882] grep (26882) used greatest stack depth: 23696 bytes left
[ 3362.146661][T26928] ip6_gre: GRE over IPv6 tunneling driver