[    2.559338] ip (221) used greatest stack depth: 12272 bytes left
[    2.663929] ip (256) used greatest stack depth: 12040 bytes left
[   17.973840] ip (1698) used greatest stack depth: 12032 bytes left
[   52.278141] netem: version 1.3
[  581.252651] pm_nl_ctl (24665) used greatest stack depth: 11856 bytes left