[    1.388879] ip (222) used greatest stack depth: 12216 bytes left
[    1.427817] ip (230) used greatest stack depth: 11960 bytes left
[   51.158521] netem: version 1.3
[   66.311930] ip (4664) used greatest stack depth: 11936 bytes left
[  548.387420] pm_nl_ctl (24830) used greatest stack depth: 11832 bytes left