Just want to say , I run 1.2gW worth of systems ( 2 tablets + 4 phones + desktops + blades ) and part of development for the project admins and coders if invalid/corrupt WU's from errors while processing and or downloading etc. This is key in making things work wide spread such as new/old drivers and new/old kernels and kernel/module flags :) . Rosetta hates 1 quad core tablet and 1 oct core phone but loves the rest in my setup. This is a totally normal thing , but can also be caused by heat on the the south bridge and voltage issues to the GPU not just Linux core system and modules.