[    1.815927] ip (284) used greatest stack depth: 12232 bytes left
[   21.190841] ip (1391) used greatest stack depth: 12216 bytes left
[   51.284689] netem: version 1.3
[  640.867411] tc (21456) used greatest stack depth: 11952 bytes left
[  697.585592] pm_nl_ctl (24596) used greatest stack depth: 11872 bytes left