[    1.887077] ip (249) used greatest stack depth: 12392 bytes left
[    2.121151] ip (261) used greatest stack depth: 12344 bytes left
[   50.124747] netem: version 1.3
[  130.284326] ip (2730) used greatest stack depth: 12296 bytes left
[  585.135740] tc (11921) used greatest stack depth: 11872 bytes left