[    1.777310] ip (249) used greatest stack depth: 12384 bytes left
[    1.976290] ip (261) used greatest stack depth: 12336 bytes left
[    2.268726] ip (289) used greatest stack depth: 12288 bytes left
[    6.428789] ip (636) used greatest stack depth: 12240 bytes left
[   28.684352] ip (1224) used greatest stack depth: 12176 bytes left
[   51.272715] netem: version 1.3
[  577.531010] tc (11908) used greatest stack depth: 11872 bytes left