Hi.
I'm trying to overclock my Pi 2, but when I do it, regardless the values of OC (I tried the recommended OC values from raspi-config and from this post), it stucks at boot, displaying i/o errors:
http://i.imgur.com/8S6WYvv.jpg
when I remove the OC settings from config.txt, Arch boots without problems.
I also have another microSD of the same model with RetroPie installed, and that boots with OC enabled, I'm thinking it's a kernel related problem.