[    2.393072] ip (285) used greatest stack depth: 12360 bytes left
[    2.502327] ip (294) used greatest stack depth: 12344 bytes left
[   11.309641] ip (967) used greatest stack depth: 12192 bytes left
[   51.861460] netem: version 1.3
[   62.305827] ip (2363) used greatest stack depth: 12160 bytes left