[    1.857504] ip (285) used greatest stack depth: 12272 bytes left
[   33.109991] ip (1698) used greatest stack depth: 12240 bytes left
[   47.375830] netem: version 1.3
[  570.469541] tc (15679) used greatest stack depth: 11952 bytes left
[  628.741607] pm_nl_ctl (18825) used greatest stack depth: 11864 bytes left