Originally Posted by netllama
I'd like to see bug reports from anyone experiencing this problem while booting with the iommu=memaper=2 kernel parameter.
As mentioned above, this kernel parameter doesn't effect anything at all. You get the same error output as without "iommu=memaper=2".
I also tried "iommu=memaper=3" which i saw in another forum, and it did cost me 256MB of RAM (which is my graphics card memory amount).
The only workaround for this I know is to deactivate K8 IOMMU at all (iommu=off as append line doesn't work at all, too).