[    2.759472] ip (568) used greatest stack depth: 12136 bytes left
[   51.451546] netem: version 1.3
[   70.215830] ip (4664) used greatest stack depth: 12008 bytes left
[  106.572617] ip (5024) used greatest stack depth: 11968 bytes left
[  567.738645] pm_nl_ctl (24829) used greatest stack depth: 11856 bytes left