[    2.431956] ip (272) used greatest stack depth: 12368 bytes left
[    2.542670] ip (281) used greatest stack depth: 12352 bytes left
[   54.403737] netem: version 1.3
[  513.895735] ip (9652) used greatest stack depth: 12200 bytes left
[  590.072979] tc (11943) used greatest stack depth: 11936 bytes left