[    2.106924] ip (254) used greatest stack depth: 12392 bytes left
[    2.564244] ip (285) used greatest stack depth: 12360 bytes left
[    2.679087] ip (294) used greatest stack depth: 12344 bytes left
[    7.020947] ip (607) used greatest stack depth: 12304 bytes left
[   57.507164] netem: version 1.3
[  477.516756] ip (8902) used greatest stack depth: 12192 bytes left