[    3.905279] ip (892) used greatest stack depth: 12040 bytes left
[   16.913853] ip (1719) used greatest stack depth: 11992 bytes left
[   51.124916] netem: version 1.3
[   59.948829] ip (4478) used greatest stack depth: 11960 bytes left
[  560.584206] pm_nl_ctl (24836) used greatest stack depth: 11856 bytes left