[    1.942653] ip (261) used greatest stack depth: 12344 bytes left
[   51.416681] netem: version 1.3
[   59.546895] ip (2251) used greatest stack depth: 12248 bytes left
[  453.455448] ip (7912) used greatest stack depth: 12184 bytes left
[  570.859970] tc (11922) used greatest stack depth: 11872 bytes left