[    1.938937] ip (247) used greatest stack depth: 12392 bytes left
[    2.157017] ip (259) used greatest stack depth: 12344 bytes left
[   11.525046] ip (943) used greatest stack depth: 12184 bytes left
[   51.247309] netem: version 1.3
[  582.468125] tc (11903) used greatest stack depth: 11872 bytes left