[    1.787452] ip (254) used greatest stack depth: 12248 bytes left
[   51.548606] netem: version 1.3
[   88.668548] ip (3292) used greatest stack depth: 12200 bytes left
[  579.256634] tc (15678) used greatest stack depth: 11952 bytes left
[  636.820697] pm_nl_ctl (18824) used greatest stack depth: 11856 bytes left