[    2.109658] ip (294) used greatest stack depth: 12248 bytes left
[   51.416889] netem: version 1.3
[  105.066394] ip (3451) used greatest stack depth: 12232 bytes left
[  575.825186] tc (15680) used greatest stack depth: 11952 bytes left
[  632.720788] pm_nl_ctl (18825) used greatest stack depth: 11872 bytes left