[    1.405960] ip (253) used greatest stack depth: 12168 bytes left
[   44.334465] ip (3649) used greatest stack depth: 11944 bytes left
[   64.248788] netem: version 1.3
[  623.150852] tc (23602) used greatest stack depth: 11880 bytes left
[  686.605416] pm_nl_ctl (27731) used greatest stack depth: 11800 bytes left