Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 30 Oct 2002 16:31:53 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 30 Oct 2002 16:31:53 -0500 Received: from dbl.q-ag.de ([80.146.160.66]:56774 "EHLO dbl.q-ag.de") by vger.kernel.org with ESMTP id ; Wed, 30 Oct 2002 16:31:52 -0500 Message-ID: <3DC05104.2020504@colorfullife.com> Date: Wed, 30 Oct 2002 22:37:08 +0100 From: Manfred Spraul User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.1) Gecko/20020827 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Bill Davidsen CC: Bernhard Kaindl , linux-kernel@vger.kernel.org Subject: Re: [PATCH] IPC SMP race: msgrcv may not return before msgsnd is done References: 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: 633 Lines: 21 [subject line switched back, sorry for the wrong line] Bill Davidsen wrote: >Don't know about his, my app does, it's only a benchmark, but I do see bad >behaviour from time to time (total lockups) on SMP machines. > > > Could you try Bernhard's patch? Lockless receive is nice, but fixing the found race would be really tricky, and is probably not worth the effort. -- 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/