[    1.611498] ip (253) used greatest stack depth: 12168 bytes left
[    1.661525] ip (258) used greatest stack depth: 12120 bytes left
[   50.628113] netem: version 1.3
[  566.685315] tc (16940) used greatest stack depth: 11896 bytes left
[  622.739689] pm_nl_ctl (20241) used greatest stack depth: 11856 bytes left