[    1.536991] ip (254) used greatest stack depth: 12296 bytes left
[   48.953454] netem: version 1.3
[   65.585324] ip (3132) used greatest stack depth: 12232 bytes left
[  560.981973] tc (15677) used greatest stack depth: 11952 bytes left
[  619.781703] pm_nl_ctl (18820) used greatest stack depth: 11840 bytes left