[  652.221314][ T3595] ip (3595) used greatest stack depth: 23904 bytes left
[  655.835206][ T3633] gre: GRE over IPv4 demultiplexor driver
[  655.861484][ T3633] ip_gre: GRE over IPv4 tunneling driver
[  655.937155][ T3632] ip (3632) used greatest stack depth: 23584 bytes left