[    2.148891] ip (250) used greatest stack depth: 12368 bytes left
[    2.666901] ip (281) used greatest stack depth: 12320 bytes left
[   12.707334] ip (917) used greatest stack depth: 12240 bytes left
[   55.408614] netem: version 1.3
[   74.249228] ip (2352) used greatest stack depth: 12048 bytes left
[   74.624734] ip (2379) used greatest stack depth: 12000 bytes left