[    2.082689] ip (294) used greatest stack depth: 12232 bytes left
[   51.536281] netem: version 1.3
[  497.600773] ip (11840) used greatest stack depth: 12216 bytes left
[  637.480673] tc (21220) used greatest stack depth: 11952 bytes left
[  694.723725] pm_nl_ctl (24360) used greatest stack depth: 11736 bytes left