[    2.054534] ip (259) used greatest stack depth: 12344 bytes left
[   50.425482] ip (2118) used greatest stack depth: 12296 bytes left
[   50.628199] netem: version 1.3
[  545.969247] ip (11652) used greatest stack depth: 12168 bytes left
[  549.586035] tc (11944) used greatest stack depth: 11872 bytes left