[    1.981494] ip (255) used greatest stack depth: 12368 bytes left
[    2.206463] ip (271) used greatest stack depth: 12320 bytes left
[   55.273309] netem: version 1.3
[  388.030767] ip (5754) used greatest stack depth: 12272 bytes left
[  394.309549] ip (5851) used greatest stack depth: 12160 bytes left