[  998.592460][T12193] gre: GRE over IPv4 demultiplexor driver
[  998.608317][T12193] ip_gre: GRE over IPv4 tunneling driver
[  998.670994][T12192] ip (12192) used greatest stack depth: 23824 bytes left
[  998.948022][T12202] ip (12202) used greatest stack depth: 23584 bytes left