[    2.857642] ip (382) used greatest stack depth: 12200 bytes left
[   40.376957] ip (2442) used greatest stack depth: 12088 bytes left
[   48.895763] netem: version 1.3
[  556.714150] tc (15678) used greatest stack depth: 11952 bytes left
[  615.021683] pm_nl_ctl (18822) used greatest stack depth: 11872 bytes left