[    1.774503] ip (256) used greatest stack depth: 12296 bytes left
[    3.192759] ip (408) used greatest stack depth: 12248 bytes left
[   34.372009] ip (1727) used greatest stack depth: 12184 bytes left
[   49.664671] netem: version 1.3
[  573.821024] tc (15677) used greatest stack depth: 11952 bytes left
[  630.950858] pm_nl_ctl (18821) used greatest stack depth: 11872 bytes left