From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751443Ab2IGPwJ (ORCPT ); Fri, 7 Sep 2012 11:52:09 -0400 Received: from nat28.tlf.novell.com ([130.57.49.28]:60660 "EHLO nat28.tlf.novell.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750746Ab2IGPwF convert rfc822-to-8bit (ORCPT ); Fri, 7 Sep 2012 11:52:05 -0400 Message-Id: <504A347B0200007800099E92@nat28.tlf.novell.com> X-Mailer: Novell GroupWise Internet Agent 12.0.0 Date: Fri, 07 Sep 2012 16:52:59 +0100 From: "Jan Beulich" To: "Stefan Bader" Cc: "Matt Wilson" , "Justin M. Forbes" , , "Konrad Rzeszutek Wilk" , "Linux Kernel Mailing List" Subject: Re: [Xen-devel] [PATCH/RFC] Fix xsave bug on older Xen hypervisors References: <1347018043-21252-1-git-send-email-stefan.bader@canonical.com> <504A05B00200007800099C7B@nat28.tlf.novell.com> <5049F4E9.9050306@canonical.com> <504A1A950200007800099D4C@nat28.tlf.novell.com> <20120907142251.GA20096@linuxtx.org> <504A32800200007800099E40@nat28.tlf.novell.com> <504A172B.5020005@canonical.com> In-Reply-To: <504A172B.5020005@canonical.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 8BIT Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org >>> On 07.09.12 at 17:47, Stefan Bader wrote: > On 07.09.2012 17:44, Jan Beulich wrote: >> All of this still doesn't provide evidence that a plain upstream >> kernel is actually having any problems in the first place. Further, >> if you say EC2 has a crippled hypervisor patch - is that patch >> available for looking at somewhere? > > It was not a hypervisor patch. It was one for the guest. This was the hack: So then why do you want to patch the upstream kernel? It won't make that hack go away, nor will it help any existing kernels. Jan