[  765.177109][ T2869] gre: GRE over IPv4 demultiplexor driver
[  765.261275][ T2869] ip6_gre: GRE over IPv6 tunneling driver
[  775.112956][ T2940] ip (2940) used greatest stack depth: 24048 bytes left
[  931.961262][ T3120] ip (3120) used greatest stack depth: 23904 bytes left