[    2.847108] ip (416) used greatest stack depth: 12232 bytes left
[    3.526098] ip (504) used greatest stack depth: 12216 bytes left
[   46.915486] netem: version 1.3
[  621.294910] tc (21174) used greatest stack depth: 11952 bytes left
[  680.392545] pm_nl_ctl (24313) used greatest stack depth: 11872 bytes left