[    2.249338] ip (272) used greatest stack depth: 12368 bytes left
[    2.372961] ip (281) used greatest stack depth: 12352 bytes left
[    3.511867] ip (362) used greatest stack depth: 12280 bytes left
[   51.437386] netem: version 1.3
[  291.343325] ip (4287) used greatest stack depth: 12072 bytes left