[    1.842318] ip (254) used greatest stack depth: 12168 bytes left
[    7.533147] ip (936) used greatest stack depth: 12120 bytes left
[   49.896611] netem: version 1.3
[  566.135755] tc (16940) used greatest stack depth: 11896 bytes left
[  623.196688] pm_nl_ctl (20240) used greatest stack depth: 11784 bytes left