[    1.703514] ip (254) used greatest stack depth: 12304 bytes left
[    1.983962] ip (286) used greatest stack depth: 12272 bytes left
[   51.715919] netem: version 1.3
[  549.898250] tc (15678) used greatest stack depth: 11952 bytes left
[  606.494300] pm_nl_ctl (18823) used greatest stack depth: 11768 bytes left