[    2.008317] ip (250) used greatest stack depth: 12400 bytes left
[    2.331556] ip (271) used greatest stack depth: 12368 bytes left
[    2.575695] ip (289) used greatest stack depth: 12352 bytes left
[   54.001039] ip (2097) used greatest stack depth: 12248 bytes left
[   54.504606] netem: version 1.3
[  670.845479] ip (14590) used greatest stack depth: 12200 bytes left