Comment # 37 on bug 84627 from Nils Holland

(In reply to Michel Dänzer from comment #35)
> Created attachment 110118 [details] [review] [review]
> drm/radeon: Ignore RADEON_GEM_GTT_WC on 32-bit x86
> 
> Can one of you confirm that this patch works around the problem for a 32-bit
> kernel build?

Yes, just like smoki, I can confirm that with this patch, I can run current
Mesa builds just fine on my 32 bit kernel.