[    2.497893] ip (217) used greatest stack depth: 12216 bytes left
[    4.381425] ip (739) used greatest stack depth: 12008 bytes left
[   52.177950] netem: version 1.3
[   59.984701] ip (4469) used greatest stack depth: 11960 bytes left
[  554.941592] pm_nl_ctl (24836) used greatest stack depth: 11784 bytes left