[    1.951657] ip (256) used greatest stack depth: 12368 bytes left
[    2.184807] ip (272) used greatest stack depth: 12320 bytes left
[   55.055251] netem: version 1.3
[  142.870695] ip (3077) used greatest stack depth: 12272 bytes left
[  573.624528] tc (11928) used greatest stack depth: 11872 bytes left