[    1.492671] ip (231) used greatest stack depth: 12536 bytes left
[    1.518943] ip (240) used greatest stack depth: 12488 bytes left
[    1.545312] ip (249) used greatest stack depth: 11992 bytes left
[    2.804070] ip (559) used greatest stack depth: 11936 bytes left
[   51.225595] netem: version 1.3
[  567.552512] pm_nl_ctl (24821) used greatest stack depth: 11832 bytes left