[   18.109606] ip (1877) used greatest stack depth: 11944 bytes left
[   79.574953] netem: version 1.3
[   96.927748] ip (5810) used greatest stack depth: 11912 bytes left
[  612.500357] tc (24873) used greatest stack depth: 11864 bytes left
[  674.565940] pm_nl_ctl (29002) used greatest stack depth: 11800 bytes left