Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751539Ab3CTNyb (ORCPT ); Wed, 20 Mar 2013 09:54:31 -0400 Received: from userp1040.oracle.com ([156.151.31.81]:47427 "EHLO userp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750709Ab3CTNy3 convert rfc822-to-8bit (ORCPT ); Wed, 20 Mar 2013 09:54:29 -0400 MIME-Version: 1.0 Message-ID: <5afe14ac-bc17-4fd1-9680-8f2566322437@default> Date: Wed, 20 Mar 2013 06:53:55 -0700 (PDT) From: Boris Ostrovsky To: Cc: , , , , , , , , , , , Subject: Re: [PATCH] mm/x86: Patch out arch_flush_lazy_mmu_mode() when running on bare metal X-Mailer: Zimbra on Oracle Beehive Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Content-Disposition: inline X-Source-IP: ucsinet22.oracle.com [156.151.31.94] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1516 Lines: 42 ----- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/