Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S265354AbUFTNI2 (ORCPT ); Sun, 20 Jun 2004 09:08:28 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S265359AbUFTNI2 (ORCPT ); Sun, 20 Jun 2004 09:08:28 -0400 Received: from dbl.q-ag.de ([213.172.117.3]:44747 "EHLO dbl.q-ag.de") by vger.kernel.org with ESMTP id S265354AbUFTNI1 (ORCPT ); Sun, 20 Jun 2004 09:08:27 -0400 Message-ID: <40D58C2F.3010508@colorfullife.com> Date: Sun, 20 Jun 2004 15:07:59 +0200 From: Manfred Spraul User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.0; en-US; rv:1.6) Gecko/20040113 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Andi Kleen CC: linux-kernel@vger.kernel.org, "R. J. Wysocki" Subject: Re: Opteron bug Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 752 Lines: 24 Andi wrote: >The kernel never uses backwards REP prefixes. > > Huh? memmove uses backwards rep movsb on x86-64, at least in 2.6.5: http://lxr.linux.no/source/arch/x86_64/lib/memmove.c?v=2.6.5;a=x86_64#L8 i386 is similar: http://lxr.linux.no/source/include/asm-i386/string.h?v=2.6.5#L297 But the bug appears to be so rare that it shouldn't matter - lets wait for the microcode update. Btw, is there a runtime microcode updater for Opteron cpus, similar to the Intel microcode driver? -- Manfred - 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/