Re: [PATCH] x86[-64] PCI domain support

From: Muli Ben-Yehuda
Date: Thu Sep 28 2006 - 19:31:43 EST

On Thu, Sep 28, 2006 at 07:03:28PM -0400, Jeff Garzik wrote:

> hmmmm. What kernels did you test?

mainline as of today + several unrelated Calgary patches I'll post
shortly + your PCI domains patch + my Calgary patch. I'll test with
iommu=off next.

> That should narrow down the problems. A problem with aic94xx sorta
> sounds like something unrelated.

Not necessarily - Calgary is an isolating IOMMU, meaning that if we
set up a mapping for aic94xx in the wrong IO space due to a Calgary
bug, aic94xx will fall over and die. Usually however this happens a
lot sooner. Also, we have code in Calgary to detect when an errant DMA
happens and it hasn't triggered in this case.

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