[    1.990493] ip (254) used greatest stack depth: 12392 bytes left
[    2.323739] ip (276) used greatest stack depth: 12360 bytes left
[    6.220485] ip (583) used greatest stack depth: 12344 bytes left
[   55.403263] netem: version 1.3
[   76.319298] ip (2491) used greatest stack depth: 12192 bytes left
[  614.418724] tc (12618) used greatest stack depth: 11936 bytes left