Re: skge error; hangs w/ hardware memory hole

Andreas Kleen
2006-07-12T02:55:05Z

Spamming bug robot dropped from cc list.

Am Mi 12.07.2006 04:46 schrieb Anthony DeRobertis <asd@suespammers.org>:

> OK, here are the results with iommu=force. All of these are copied
> down
> by hand, so please forgive any transcription errors:

You need to use iommu=soft swiotlb=force

The standard IOMMU is also broken on VIA, but forced swiotlb should
work.

However it is a bit slow because it will force all IO through an
additional copy.
If it helps I can do a proper patch that only bounces IO > 4GB through
the copy.

> Honestly, should I chuck this board through the window of my nearest
> ASUS and/or VIA office, and buy an NForce board?

We can probably get it to work, but you're clearly outside validated
territory (= you're running the hardware in a untested by the vendor
configuration). Normally that's not a good idea.

BTW there are NForce systems with similar problems, but they are
rare.

-Andi