[    2.528775] ip (288) used greatest stack depth: 12320 bytes left
[   54.660035] netem: version 1.3
[  287.998534] ip (4167) used greatest stack depth: 12224 bytes left
[  485.635751] ip (8272) used greatest stack depth: 12048 bytes left
[  595.686508] tc (11937) used greatest stack depth: 11872 bytes left