[    2.719709] ip (254) used greatest stack depth: 12392 bytes left
[    3.244624] ip (285) used greatest stack depth: 12360 bytes left
[    4.609028] ip (392) used greatest stack depth: 12192 bytes left
[   60.172125] netem: version 1.3
[  281.918915] ip (4839) used greatest stack depth: 12064 bytes left
[  614.924076] tc (13805) used greatest stack depth: 11936 bytes left