[    1.736428] ip (268) used greatest stack depth: 12392 bytes left
[    2.758426] ip (394) used greatest stack depth: 12168 bytes left
[   49.321255] netem: version 1.3
[  556.366467] tc (16942) used greatest stack depth: 11896 bytes left
[  613.878017] pm_nl_ctl (20241) used greatest stack depth: 11864 bytes left