[    1.985803] ip (249) used greatest stack depth: 12392 bytes left
[    2.434007] ip (279) used greatest stack depth: 12360 bytes left
[    2.552339] ip (288) used greatest stack depth: 12344 bytes left
[   53.401969] netem: version 1.3
[  136.187720] ip (2740) used greatest stack depth: 12248 bytes left
[  607.018697] tc (11955) used greatest stack depth: 11936 bytes left