[    2.521836] ip (228) used greatest stack depth: 12608 bytes left
[    2.562974] ip (245) used greatest stack depth: 12440 bytes left
[    3.777150] ip (566) used greatest stack depth: 12040 bytes left
[   17.874861] ip (1697) used greatest stack depth: 12008 bytes left
[   52.016750] netem: version 1.3
[  612.287030] pm_nl_ctl (24665) used greatest stack depth: 11856 bytes left