[    1.824902] ip (284) used greatest stack depth: 12248 bytes left
[   21.388005] ip (1401) used greatest stack depth: 12104 bytes left
[   49.998561] netem: version 1.3
[  572.964058] tc (15677) used greatest stack depth: 11952 bytes left
[  630.612047] pm_nl_ctl (18823) used greatest stack depth: 11872 bytes left