[    1.718535] ip (250) used greatest stack depth: 12400 bytes left
[    2.215286] ip (289) used greatest stack depth: 12352 bytes left
[    4.496388] ip (466) used greatest stack depth: 12248 bytes left
[    7.694985] ip (729) used greatest stack depth: 12200 bytes left
[   51.766864] netem: version 1.3