[    1.887430] ip (254) used greatest stack depth: 12168 bytes left
[   67.326007] ip (4290) used greatest stack depth: 11928 bytes left
[   67.423047] netem: version 1.3
[  601.918301] tc (23602) used greatest stack depth: 11880 bytes left
[  663.415436] pm_nl_ctl (27729) used greatest stack depth: 11848 bytes left