[   51.579452] netem: version 1.3
[   58.914141] ip (4459) used greatest stack depth: 12208 bytes left
[   66.991994] ip (4664) used greatest stack depth: 12008 bytes left
[   80.292897] ip (4846) used greatest stack depth: 11960 bytes left
[  546.193297] pm_nl_ctl (24835) used greatest stack depth: 11856 bytes left