[    1.887221] ip (277) used greatest stack depth: 12248 bytes left
[   50.625536] netem: version 1.3
[   60.328647] ip (3010) used greatest stack depth: 11976 bytes left
[  639.942626] tc (21485) used greatest stack depth: 11952 bytes left
[  697.413525] pm_nl_ctl (24625) used greatest stack depth: 11872 bytes left