[    1.559386] ip (252) used greatest stack depth: 12248 bytes left
[   48.976495] netem: version 1.3
[   68.846969] ip (3141) used greatest stack depth: 12200 bytes left
[  565.134791] tc (15679) used greatest stack depth: 11952 bytes left
[  683.720961] pm_nl_ctl (18826) used greatest stack depth: 11872 bytes left