[    2.129944] ip (293) used greatest stack depth: 12272 bytes left
[    4.346051] ip (512) used greatest stack depth: 12240 bytes left
[    6.458731] ip (674) used greatest stack depth: 12128 bytes left
[   57.587301] netem: version 1.3
[  634.027049] tc (15600) used greatest stack depth: 11896 bytes left