[    1.871350] ip (254) used greatest stack depth: 12392 bytes left
[    2.293308] ip (285) used greatest stack depth: 12360 bytes left
[    3.635502] ip (391) used greatest stack depth: 12344 bytes left
[   36.493263] ip (1546) used greatest stack depth: 12192 bytes left
[   49.494815] netem: version 1.3
[  608.146974] tc (12616) used greatest stack depth: 11936 bytes left