[    1.787651] ip (250) used greatest stack depth: 12392 bytes left
[    2.162369] ip (281) used greatest stack depth: 12360 bytes left
[    2.253785] ip (291) used greatest stack depth: 12344 bytes left
[   55.334289] netem: version 1.3
[  300.478725] ip (4560) used greatest stack depth: 12312 bytes left