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Re: [Xen-devel] [PATCH] mm/x86: Patch out arch_flush_lazy_mmu_mode() when running on bare metal



On Wed, Mar 13, 2013 at 09:25:44AM -0400, Boris Ostrovsky wrote:
> On 03/01/2013 07:14 AM, Josh Boyer wrote:
> >On Thu, Feb 28, 2013 at 04:52:20PM -0800, H. Peter Anvin wrote:
> >>On 02/28/2013 04:42 PM, Josh Boyer wrote:
> >>>On Fri, Mar 01, 2013 at 01:36:29AM +0100, Borislav Petkov wrote:
> >>>>On Thu, Feb 28, 2013 at 04:15:45PM -0800, H. Peter Anvin wrote:
> >>>>>>I'll try to get someone to test this tomorrow.
> >>>>Btw, you'd need to apply that other patch too
> >>>>
> >>>>http://marc.info/?l=xen-devel&m=136206183814547&w=2
> >>>>
> >>>>so that arch_flush_lazy_mmu_mode() has at least one caller on x86_64.
> >>>Yeah, we already have that applied.  It stops crashes in xen
> >>>environments so we pulled it in as a bugfix.  Thanks though!
> >>>
> >>Who are "we"?
> >Sorry, Fedora.  That patch has a link to a bug in it.  We applied the
> >patch for that bug.  I'll apply Boris' patch on top and get the same
> >people to test it.
> 
> Josh, have you had a chance to test this?

I've tested it on bare metal for a while now.  No problems noticed at
all.  I've not heard back from Krishna who was testing it in the Xen
environment.  Krishna?

josh

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