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Re: [Xen-devel] [xen-unstable test] 57852: regressions - FAIL



On Wed, 2015-06-10 at 14:45 +0100, Jan Beulich wrote:
> >>> On 10.06.15 at 14:56, <ian.campbell@xxxxxxxxxx> wrote:
> > On Wed, 2015-06-10 at 12:48 +0100, Jan Beulich wrote:
> >> Sure we can; I just generally prefer not to bother people with
> >> problems they already solved, but maybe that's the wrong approach
> >> a case like this.
> > 
> > Is the list of errata fixed by a given ucode update public? If not then
> > I think we've done sufficient due diligence that we should feel ok to
> > ask, even if the answer turns out to be fixed in microcode.
> 
> So I went though the errata list for that specific model; the only
> one really concerning seems to be CA135 ("A MOV to CR3 When
> EPT is Enabled May Lead to an Unexpected Page Fault or an
> Incorrect Page Translation"). But while it would affect us, it would
> quite likely make the guest crash instead of idling or being hung.

Yes, sounds like it.

> So if we're going to approach Intel with this - will you or should I?

I think it'd be best coming from you.

Ian.



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