[    2.346310] ip (276) used greatest stack depth: 12360 bytes left
[    2.463825] ip (285) used greatest stack depth: 12344 bytes left
[   10.035229] ip (792) used greatest stack depth: 12288 bytes left
[   44.106636] ip (1669) used greatest stack depth: 12160 bytes left
[   58.299601] netem: version 1.3