[    2.339568] ip (276) used greatest stack depth: 12360 bytes left
[    2.555942] ip (294) used greatest stack depth: 12344 bytes left
[    6.300104] ip (582) used greatest stack depth: 12192 bytes left
[   51.721299] netem: version 1.3
[  110.685144] ip (2778) used greatest stack depth: 12160 bytes left
[  605.545550] tc (12615) used greatest stack depth: 11936 bytes left