[    1.538626] ip (249) used greatest stack depth: 12368 bytes left
[    1.814289] ip (279) used greatest stack depth: 12320 bytes left
[   46.682700] netem: version 1.3
[   80.895957] ip (2496) used greatest stack depth: 12272 bytes left
[  280.270680] ip (4443) used greatest stack depth: 12176 bytes left