[    2.223347] ip (270) used greatest stack depth: 12608 bytes left
[    2.442105] ip (288) used greatest stack depth: 12272 bytes left
[   63.771026] netem: version 1.3
[  467.312070] ip (9754) used greatest stack depth: 12248 bytes left
[  634.109273] tc (15596) used greatest stack depth: 11896 bytes left