[    2.220159] ip (273) used greatest stack depth: 12328 bytes left
[   45.836661] ip (1993) used greatest stack depth: 12288 bytes left
[   54.698964] netem: version 1.3
[  471.009160] ip (8050) used greatest stack depth: 12048 bytes left
[  618.700241] tc (12612) used greatest stack depth: 11920 bytes left