[    2.391693] ip (279) used greatest stack depth: 12368 bytes left
[    2.512272] ip (288) used greatest stack depth: 12352 bytes left
[   37.506307] ip (1376) used greatest stack depth: 12312 bytes left
[   52.448317] netem: version 1.3
[   61.948203] ip (2230) used greatest stack depth: 12072 bytes left