[    1.534235] ip (257) used greatest stack depth: 12232 bytes left
[   11.261551] ip (1548) used greatest stack depth: 12008 bytes left
[   51.063779] netem: version 1.3
[   89.476506] ip (4839) used greatest stack depth: 11960 bytes left
[  568.314646] pm_nl_ctl (24830) used greatest stack depth: 11856 bytes left