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

[Boris Ostrovsky <boris.ostrovsky@oracle.com>]

----- jwboyer@redhat.com wrote:

> 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?


Any updates?

Thanks.
-boris