[    1.728342] ip (249) used greatest stack depth: 12368 bytes left
[    2.118828] ip (279) used greatest stack depth: 12320 bytes left
[   48.561133] netem: version 1.3
[  376.689222] ip (6674) used greatest stack depth: 12160 bytes left
[  547.585105] tc (11907) used greatest stack depth: 11872 bytes left