Re: 2.6.29: can't resume from suspend with DMAR (intel iommu)enabled

[David Woodhouse]

On Tue, 2009-04-07 at 08:56 +0100, Matthew Garrett wrote:
> On Mon, Apr 06, 2009 at 01:56:01PM -0700, David Woodhouse wrote:
> 
> > Dirk reported the same panic, but we've just turned his iommu back on
> > and completely failed to reproduce the problem -- so I'm kind of stuck.
> 
> I saw this on a T400, but only on the first boot after enabling DMAR - 
> power cycling "fixed" it.

Ah, I can reproduce now -- thanks for spotting that. I'll come up with
something that can spot this failure mode early and bail out. With a
nasty message about BIOS engineers.

-- 
dwmw2

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