Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422971Ab3CVU2U (ORCPT ); Fri, 22 Mar 2013 16:28:20 -0400 Received: from terminus.zytor.com ([198.137.202.10]:49012 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1422915Ab3CVU2Q (ORCPT ); Fri, 22 Mar 2013 16:28:16 -0400 User-Agent: K-9 Mail for Android In-Reply-To: <20130322200941.GB6189@phenom.dumpdata.com> References: <5afe14ac-bc17-4fd1-9680-8f2566322437@default> <20130321000845.GC15821@hansolo.jdub.homelinux.org> <20130322200941.GB6189@phenom.dumpdata.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Subject: Re: [PATCH] mm/x86: Patch out arch_flush_lazy_mmu_mode() when running on bare metal From: "H. Peter Anvin" Date: Fri, 22 Mar 2013 13:25:21 -0700 To: Konrad Rzeszutek Wilk , Josh Boyer CC: Boris Ostrovsky , mingo@redhat.com, tglx@linutronix.de, rostedt@goodmis.org, kraman@redhat.com, gregkh@linuxfoundation.org, stable@vger.kernel.org, bp@alien8.de, samu.kallio@aberdeencloud.com, xen-devel@lists.xen.org, linux-kernel@vger.kernel.org Message-ID: <9a798a0e-bc39-40db-be7f-b5e6fcc382d9@email.android.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2366 Lines: 71 Sure. Konrad Rzeszutek Wilk wrote: >On Wed, Mar 20, 2013 at 08:08:45PM -0400, Josh Boyer wrote: >> On Wed, Mar 20, 2013 at 06:53:55AM -0700, Boris Ostrovsky wrote: >> > >> > ----- 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? >> >> No. I've still not heard from Krishna. >> >> At this point I've tested it on bare metal quite a bit, and Konrad >has >> tested it on both bare metal and Xen. That should already cover the >> case Krishna was going to test anyway. I suggest we move forward and >> take the patch. > >Peter? > >Would you like me or Boris to clean up the two patches with the >appropiate Acks and send them to you? >> >> josh -- Sent from my mobile phone. Please excuse brevity and lack of formatting. -- 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/