[    1.524584] iptables (230) used greatest stack depth: 12832 bytes left
[    1.630446] ip (247) used greatest stack depth: 12368 bytes left
[    1.908046] ip (277) used greatest stack depth: 12320 bytes left
[    2.846882] ip (377) used greatest stack depth: 12272 bytes left
[   46.876068] netem: version 1.3