[    2.491782] ip (282) used greatest stack depth: 12368 bytes left
[    3.857825] ip (372) used greatest stack depth: 12352 bytes left
[   55.873398] netem: version 1.3
[  499.985702] ip (8520) used greatest stack depth: 12312 bytes left
[  603.846867] tc (11957) used greatest stack depth: 11936 bytes left