[    1.572169] ip (256) used greatest stack depth: 12280 bytes left
[    1.840377] ip (285) used greatest stack depth: 12232 bytes left
[   47.901146] netem: version 1.3
[  627.671208] tc (21229) used greatest stack depth: 11952 bytes left
[  685.073258] pm_nl_ctl (24370) used greatest stack depth: 11736 bytes left