From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757383AbZEWXoz (ORCPT ); Sat, 23 May 2009 19:44:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1753605AbZEWXor (ORCPT ); Sat, 23 May 2009 19:44:47 -0400 Received: from terminus.zytor.com ([198.137.202.10]:53906 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753375AbZEWXoq (ORCPT ); Sat, 23 May 2009 19:44:46 -0400 Message-ID: <4A188A48.5000208@zytor.com> Date: Sat, 23 May 2009 16:44:08 -0700 From: "H. Peter Anvin" User-Agent: Thunderbird 2.0.0.14 (X11/20080501) MIME-Version: 1.0 To: Harald Welte CC: lkml@morethan.org, Ingo Molnar , Thomas Gleixner , linux-kernel@vger.kernel.org, Alan Cox Subject: Re: [BUG FIX] Make x86_32 uni-processor Atomic ops, Atomic References: <200905221139.26941.lkml@morethan.org> <200905221946.01808.lkml@morethan.org> <4A1748A9.1020306@zytor.com> <200905231304.55973.lkml@morethan.org> In-Reply-To: <200905231304.55973.lkml@morethan.org> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Harald, It looks like there might be a problem with the C7-M ... Michael reports that if he sets LOCK_PREFIX to "lock;" it works, but that shouldn't be necessary for a uniprocessor. I'm wondering if we have to revive the OOSTORE hack, or some other workaround. It is of course hard for me to track this down since (a) I don't have access to the CPU documentation, and (b) I work for Intel now, which limits the amount of time I can realistically spend on this. -hpa [Cc: Alan, who I believed developed the OOSTORE hack back when.] Michael S. Zick wrote: > On Fri May 22 2009, H. Peter Anvin wrote: >> Michael S. Zick wrote: >>> Same integrated motherboard. >> Which means same CPU, same BIOS, same motherboard (none of which you're >> telling us.) >> >> cpuinfo and dmidecode would be informative. >> > > The -09143lk files are posted. > > Download location: > http://hp-umpc.com/ce1200v > > Details so far today: > http://forum.netbookuser.com/viewtopic.php?pid=6968#p6968 > > Summary: > HP-2133 (C7-M/CN896) - 09143 - No results - Still up 3 1/2 hours. > Cloudbook (C7-M/CX700) - 09143 - 45 minutes. > Cloudbook (C7-M/CX700) - 09143lk - No results - Still up 1 1/2 hours. > > OK - time to look for the missing "memory" in the clobber lists. ;) > -- H. Peter Anvin, Intel Open Source Technology Center I work for Intel. I don't speak on their behalf.