[    1.406758] ip (217) used greatest stack depth: 12216 bytes left
[    1.540768] ip (257) used greatest stack depth: 12008 bytes left
[   51.161816] netem: version 1.3
[   69.968760] ip (4647) used greatest stack depth: 11960 bytes left
[  565.294559] pm_nl_ctl (24827) used greatest stack depth: 11856 bytes left