[    2.084585] ip (256) used greatest stack depth: 12392 bytes left
[    2.411703] ip (278) used greatest stack depth: 12360 bytes left
[    2.523585] ip (287) used greatest stack depth: 12344 bytes left
[   10.810597] ip (887) used greatest stack depth: 12304 bytes left
[   18.717817] ip (1096) used greatest stack depth: 12288 bytes left
[   41.038207] ip (1667) used greatest stack depth: 12192 bytes left
[   55.501058] netem: version 1.3