[    2.252835] ip (257) used greatest stack depth: 12392 bytes left
[    2.681129] ip (285) used greatest stack depth: 12360 bytes left
[    2.797705] ip (294) used greatest stack depth: 12344 bytes left
[   61.425003] netem: version 1.3
[  503.437621] ip (9136) used greatest stack depth: 12272 bytes left