[    1.415476] ip (218) used greatest stack depth: 12168 bytes left
[    2.818331] ip (569) used greatest stack depth: 12136 bytes left
[   17.109884] ip (1719) used greatest stack depth: 11968 bytes left
[   51.935455] netem: version 1.3
[  542.518976] pm_nl_ctl (24812) used greatest stack depth: 11856 bytes left