[    1.553109] ip (258) used greatest stack depth: 12264 bytes left
[    2.158663] ip (407) used greatest stack depth: 12248 bytes left
[    2.181015] ip (416) used greatest stack depth: 11936 bytes left
[   51.262324] netem: version 1.3
[  600.652313] pm_nl_ctl (24829) used greatest stack depth: 11856 bytes left