[    2.037962] ip (284) used greatest stack depth: 12264 bytes left
[   51.621336] netem: version 1.3
[   70.785853] ip (3139) used greatest stack depth: 12232 bytes left
[  573.805566] tc (15677) used greatest stack depth: 11952 bytes left
[  630.885841] pm_nl_ctl (18823) used greatest stack depth: 11864 bytes left