[    2.183895] ip (257) used greatest stack depth: 12624 bytes left
[    2.557383] ip (282) used greatest stack depth: 12368 bytes left
[    2.683466] ip (291) used greatest stack depth: 12352 bytes left
[   53.520121] netem: version 1.3
[  538.893693] ip (11062) used greatest stack depth: 12072 bytes left
[  577.287124] tc (11935) used greatest stack depth: 11936 bytes left