[    2.432421] ip (221) used greatest stack depth: 12216 bytes left
[   17.801798] ip (1718) used greatest stack depth: 12008 bytes left
[   51.844966] netem: version 1.3
[   99.504897] ip (5043) used greatest stack depth: 11936 bytes left
[  556.829565] pm_nl_ctl (24827) used greatest stack depth: 11864 bytes left