[    2.028161] ip (286) used greatest stack depth: 12248 bytes left
[   51.394438] netem: version 1.3
[  370.726275] ip (8671) used greatest stack depth: 12168 bytes left
[  553.906254] tc (15678) used greatest stack depth: 11952 bytes left
[  613.018289] pm_nl_ctl (18823) used greatest stack depth: 11872 bytes left