[    2.130341] ip (280) used greatest stack depth: 12344 bytes left
[   24.002201] ip (1413) used greatest stack depth: 12192 bytes left
[   56.690125] netem: version 1.3
[  622.881374] tc (15594) used greatest stack depth: 11936 bytes left
[  690.491752] pm_nl_ctl (18731) used greatest stack depth: 11832 bytes left