[    1.704700] ip (249) used greatest stack depth: 12608 bytes left
[    1.772665] ip (254) used greatest stack depth: 12368 bytes left
[    1.955995] ip (270) used greatest stack depth: 12320 bytes left
[   27.894003] ip (1230) used greatest stack depth: 12272 bytes left
[   47.866693] netem: version 1.3
[  378.025244] ip (6016) used greatest stack depth: 12048 bytes left