[    1.898165] ip (256) used greatest stack depth: 12392 bytes left
[    2.386511] ip (287) used greatest stack depth: 12344 bytes left
[   43.338429] ip (1764) used greatest stack depth: 12192 bytes left
[   55.592327] netem: version 1.3
[  600.778238] tc (12613) used greatest stack depth: 11936 bytes left