[  486.874941][ T4249] ip (4249) used greatest stack depth: 23720 bytes left
[  488.322994][ T4307] gre: GRE over IPv4 demultiplexer driver
[  488.329600][ T4307] ip_gre: GRE over IPv4 tunneling driver
[  522.538892][ T4485] ip (4485) used greatest stack depth: 23328 bytes left