[    2.427587] ip (285) used greatest stack depth: 12344 bytes left
[   25.445203] ip (1195) used greatest stack depth: 12160 bytes left
[   55.633622] netem: version 1.3
[  390.169613] ip (6752) used greatest stack depth: 12064 bytes left
[  590.860006] tc (12618) used greatest stack depth: 11936 bytes left