Messages in this thread | | | Date | Fri, 15 Jul 2011 09:12:34 -0400 | From | MK <> | Subject | Re: AVX "Sandy Bridge" hardware issue? |
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On Tue, 12 Jul 2011 17:49:35 -0700 Andi Kleen <andi@firstfloor.org> wrote: > If there's a problem then it's likely in the VM. Maybe it leaks > AVX partially through only. > > For example I had a similar problem a long time ago on a system > which had inconsistent CPU features for different CPUs. The kernel > will chose the least common denominator, but an application > directly calling CPUID can sometimes see different flags and then > crash when it switches CPUs. > > The symptoms would be consistent with that. > > I would contact the VM vendor.
I think I will go the developer list for openVZ first and get some more info. The vendor is trepidatious as no one else has had a problem (I dunno how many, if any, of the other clients use mod_perl) and this could be an unsolvable headache headache for them.
Thanks all for the input!
-- "Enthusiasm is not the enemy of the intellect." (said of Irving Howe) "The angel of history[...]is turned toward the past." (Walter Benjamin)
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