[    2.119975] ip (254) used greatest stack depth: 12392 bytes left
[    2.502367] ip (276) used greatest stack depth: 12360 bytes left
[    2.624505] ip (285) used greatest stack depth: 12344 bytes left
[   56.669184] netem: version 1.3
[   64.325455] ip (2355) used greatest stack depth: 12192 bytes left
[  223.614988] ip (4093) used greatest stack depth: 12064 bytes left