[    1.720163] ip (249) used greatest stack depth: 12368 bytes left
[    2.076244] ip (279) used greatest stack depth: 12320 bytes left
[   47.405870] netem: version 1.3
[  358.375459] ip (6090) used greatest stack depth: 12176 bytes left
[  537.961958] tc (11926) used greatest stack depth: 11872 bytes left