[    1.955652] ip (251) used greatest stack depth: 12400 bytes left
[    2.312808] ip (272) used greatest stack depth: 12368 bytes left
[    2.438264] ip (281) used greatest stack depth: 12352 bytes left
[   51.974153] netem: version 1.3
[  404.860353] ip (6705) used greatest stack depth: 12296 bytes left
[  512.294907] ip (9127) used greatest stack depth: 12248 bytes left
[  553.321449] ip (10964) used greatest stack depth: 12168 bytes left
[  598.635627] tc (11933) used greatest stack depth: 11936 bytes left