From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757195Ab0F3Th7 (ORCPT ); Wed, 30 Jun 2010 15:37:59 -0400 Received: from mail-fx0-f46.google.com ([209.85.161.46]:36883 "EHLO mail-fx0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755120Ab0F3Th6 (ORCPT ); Wed, 30 Jun 2010 15:37:58 -0400 Message-ID: <4C2B9D43.4070504@colorfullife.com> Date: Wed, 30 Jun 2010 21:38:43 +0200 From: Manfred Spraul User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.10) Gecko/20100621 Fedora/3.0.5-1.fc13 Thunderbird/3.0.5 MIME-Version: 1.0 To: Andrew Morton CC: Christoph Lameter , Pekka Enberg , linux-mm@kvack.org, Nick Piggin , Matt Mackall , LKML Subject: Re: [S+Q 01/16] [PATCH] ipc/sem.c: Bugfix for semop() not reporting successful operation References: <20100625212026.810557229@quilx.com> <20100625212101.622422748@quilx.com> <20100629120857.00f4b42d.akpm@linux-foundation.org> In-Reply-To: <20100629120857.00f4b42d.akpm@linux-foundation.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Andrew, On 06/29/2010 09:08 PM, Andrew Morton wrote: > On Tue, 29 Jun 2010 10:42:42 -0500 (CDT) > Christoph Lameter wrote: > > >> This is a patch from Manfred. Required to make 2.6.35-rc3 work. >> >> > My current version of the patch is below. > > I believe that Luca has still seen problems with this patch applied so > its current status is "stuck, awaiting developments". > > Is that a correct determination? > I would propose that you forward a patch to Linus - either the one you have in your tree or the v2 that I've just posted. With stock 2.6.35-rc3, my semtimedop() stress tests produces an oops or an invalid return value (i.e.:semtimedop() returns with "1") within a fraction of a second. With either of the patches applied, my test apps show the expected behavior. -- Manfred From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail172.messagelabs.com (mail172.messagelabs.com [216.82.254.3]) by kanga.kvack.org (Postfix) with SMTP id EF8526B0071 for ; Wed, 30 Jun 2010 15:37:58 -0400 (EDT) Received: by fxm17 with SMTP id 17so881515fxm.14 for ; Wed, 30 Jun 2010 12:37:57 -0700 (PDT) Message-ID: <4C2B9D43.4070504@colorfullife.com> Date: Wed, 30 Jun 2010 21:38:43 +0200 From: Manfred Spraul MIME-Version: 1.0 Subject: Re: [S+Q 01/16] [PATCH] ipc/sem.c: Bugfix for semop() not reporting successful operation References: <20100625212026.810557229@quilx.com> <20100625212101.622422748@quilx.com> <20100629120857.00f4b42d.akpm@linux-foundation.org> In-Reply-To: <20100629120857.00f4b42d.akpm@linux-foundation.org> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org To: Andrew Morton Cc: Christoph Lameter , Pekka Enberg , linux-mm@kvack.org, Nick Piggin , Matt Mackall , LKML List-ID: Hi Andrew, On 06/29/2010 09:08 PM, Andrew Morton wrote: > On Tue, 29 Jun 2010 10:42:42 -0500 (CDT) > Christoph Lameter wrote: > > >> This is a patch from Manfred. Required to make 2.6.35-rc3 work. >> >> > My current version of the patch is below. > > I believe that Luca has still seen problems with this patch applied so > its current status is "stuck, awaiting developments". > > Is that a correct determination? > I would propose that you forward a patch to Linus - either the one you have in your tree or the v2 that I've just posted. With stock 2.6.35-rc3, my semtimedop() stress tests produces an oops or an invalid return value (i.e.:semtimedop() returns with "1") within a fraction of a second. With either of the patches applied, my test apps show the expected behavior. -- Manfred -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org