[    1.603763] ip (250) used greatest stack depth: 12368 bytes left
[    1.843591] ip (271) used greatest stack depth: 12320 bytes left
[    3.984481] ip (473) used greatest stack depth: 12160 bytes left
[   47.296760] netem: version 1.3
[  257.406959] ip (4025) used greatest stack depth: 12088 bytes left