[    2.466025] ip (294) used greatest stack depth: 12360 bytes left
[    3.786418] ip (391) used greatest stack depth: 12344 bytes left
[   51.898811] netem: version 1.3
[  478.180808] ip (8988) used greatest stack depth: 12304 bytes left
[  584.281560] tc (12618) used greatest stack depth: 11936 bytes left