[    2.032041] ip (250) used greatest stack depth: 12464 bytes left
[    2.396445] ip (272) used greatest stack depth: 12352 bytes left
[   55.097324] netem: version 1.3
[   72.540654] ip (2504) used greatest stack depth: 12168 bytes left
[  597.639706] tc (12615) used greatest stack depth: 11936 bytes left