[   29.022364] ip (2270) used greatest stack depth: 12208 bytes left
[   51.313218] netem: version 1.3
[   58.194146] ip (4478) used greatest stack depth: 12040 bytes left
[   58.215504] ip (4487) used greatest stack depth: 12008 bytes left
[  543.357431] pm_nl_ctl (24835) used greatest stack depth: 11856 bytes left