[    1.829198] ip (250) used greatest stack depth: 12368 bytes left
[    2.183755] ip (280) used greatest stack depth: 12320 bytes left
[   49.507470] netem: version 1.3
[   58.995944] ip (2241) used greatest stack depth: 12272 bytes left
[  105.568072] ip (2625) used greatest stack depth: 12048 bytes left