[    1.969924] ip (255) used greatest stack depth: 12368 bytes left
[    2.254222] ip (280) used greatest stack depth: 12320 bytes left
[    3.812414] ip (370) used greatest stack depth: 12272 bytes left
[   36.013288] ip (1378) used greatest stack depth: 12048 bytes left
[   51.837724] netem: version 1.3
[  515.927894] ip (9778) used greatest stack depth: 12016 bytes left
[  588.878311] tc (11936) used greatest stack depth: 11872 bytes left