From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751946Ab1GONMS (ORCPT ); Fri, 15 Jul 2011 09:12:18 -0400 Received: from smtpauth16.prod.mesa1.secureserver.net ([64.202.165.22]:54651 "HELO smtpauth16.prod.mesa1.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751902Ab1GONMQ (ORCPT ); Fri, 15 Jul 2011 09:12:16 -0400 Date: Fri, 15 Jul 2011 09:06:39 -0400 From: MK To: linux-kernel@vger.kernel.org Subject: Re: AVX "Sandy Bridge" hardware issue? Message-Id: <20110715090639.5550ac11.mk@cognitivedissonance.ca> In-Reply-To: <4E1CB768.6060304@genband.com> References: <20110712161616.b5196a3b.mk@cognitivedissonance.ca> <4E1CB768.6060304@genband.com> X-Mailer: Sylpheed 3.1.1 (GTK+ 2.22.0; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 12 Jul 2011 15:06:48 -0600 Chris Friesen wrote: > For what it's worth, Intel says the E31230 supports AVX as well: > > http://ark.intel.com/Product.aspx?id=52271 Thanks for that. > As far as I can tell, support for saving/restoring AVX registers was > added in 2.6.30, but gcc 4.6 is needed for proper support to actually > use the new instructions. However, given that you're using openVZ > then if there is a bug in the kernel all it would take is one VPS > slice using code built with a new compiler. I might try building a new gcc (since there is no 4.6 binary for F14) and then testing that way. -- "Enthusiasm is not the enemy of the intellect." (said of Irving Howe) "The angel of history[...]is turned toward the past." (Walter Benjamin)