[    1.662166] ip (255) used greatest stack depth: 12368 bytes left
[    1.890867] ip (280) used greatest stack depth: 12320 bytes left
[    4.021834] ip (475) used greatest stack depth: 12272 bytes left
[    6.779016] ip (747) used greatest stack depth: 12160 bytes left
[   47.756742] netem: version 1.3