[    1.944794] ip (294) used greatest stack depth: 12248 bytes left
[    2.802316] ip (390) used greatest stack depth: 11976 bytes left
[   48.331685] netem: version 1.3
[  567.215686] tc (15680) used greatest stack depth: 11952 bytes left
[  624.718252] pm_nl_ctl (18825) used greatest stack depth: 11872 bytes left