[    1.864439] ip (286) used greatest stack depth: 12248 bytes left
[    4.946898] ip (659) used greatest stack depth: 12232 bytes left
[   49.204009] netem: version 1.3
[  545.576929] tc (15680) used greatest stack depth: 11952 bytes left
[  603.634368] pm_nl_ctl (18824) used greatest stack depth: 11864 bytes left