[    7.897294] ip (257) used greatest stack depth: 12264 bytes left
[   12.389559] ip (775) used greatest stack depth: 12072 bytes left
[   59.710193] netem: version 1.3
[  570.605380] tc (15678) used greatest stack depth: 11952 bytes left
[  631.406698] pm_nl_ctl (18822) used greatest stack depth: 11704 bytes left