[    3.119820] ip (417) used greatest stack depth: 12248 bytes left
[    5.195904] ip (651) used greatest stack depth: 12136 bytes left
[   51.946743] netem: version 1.3
[  619.745896] tc (21356) used greatest stack depth: 11952 bytes left
[  677.485728] pm_nl_ctl (24497) used greatest stack depth: 11720 bytes left