[    2.097683] ip (280) used greatest stack depth: 12320 bytes left
[    2.180974] ip (289) used greatest stack depth: 12272 bytes left
[   21.704703] ip (1125) used greatest stack depth: 12160 bytes left
[   48.099433] netem: version 1.3
[  287.288209] ip (4552) used greatest stack depth: 12048 bytes left