[    1.696729] ip (256) used greatest stack depth: 12304 bytes left
[    1.968041] ip (285) used greatest stack depth: 12272 bytes left
[   49.433884] netem: version 1.3
[  535.807920] tc (15677) used greatest stack depth: 11952 bytes left
[  593.776555] pm_nl_ctl (18823) used greatest stack depth: 11864 bytes left