[    1.983644] ip (262) used greatest stack depth: 12336 bytes left
[   50.951481] netem: version 1.3
[   68.661536] ip (2360) used greatest stack depth: 12288 bytes left
[  115.727400] ip (2744) used greatest stack depth: 12048 bytes left
[  567.757899] tc (11920) used greatest stack depth: 11872 bytes left