Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751134AbWHYHUU (ORCPT ); Fri, 25 Aug 2006 03:20:20 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751150AbWHYHUU (ORCPT ); Fri, 25 Aug 2006 03:20:20 -0400 Received: from adsl-69-232-92-238.dsl.sndg02.pacbell.net ([69.232.92.238]:13207 "EHLO gnuppy.monkey.org") by vger.kernel.org with ESMTP id S1751134AbWHYHUS (ORCPT ); Fri, 25 Aug 2006 03:20:18 -0400 Date: Fri, 25 Aug 2006 00:19:57 -0700 To: Robert Crocombe Cc: Esben Nielsen , Ingo Molnar , Thomas Gleixner , rostedt@goodmis.org, linux-kernel , "Bill Huey (hui)" Subject: Re: rtmutex assert failure (was [Patch] restore the RCU callback...) Message-ID: <20060825071957.GA30720@gnuppy.monkey.org> References: <20060818115934.GA29919@gnuppy.monkey.org> <20060822013722.GA628@gnuppy.monkey.org> <20060822232051.GA8991@gnuppy.monkey.org> <20060823202046.GA17267@gnuppy.monkey.org> <20060823210558.GA17606@gnuppy.monkey.org> <20060823210842.GB17606@gnuppy.monkey.org> <20060824014658.GB19314@gnuppy.monkey.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20060824014658.GB19314@gnuppy.monkey.org> User-Agent: Mutt/1.5.11+cvs20060403 From: Bill Huey (hui) Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1193 Lines: 28 On Wed, Aug 23, 2006 at 06:46:58PM -0700, Bill Huey wrote: > On Wed, Aug 23, 2006 at 06:22:03PM -0700, Robert Crocombe wrote: ... > > I'll post the config, too, just so there's a clear understanding of > > where we are. > > Ok, yeah, I've been trying to get a clean stack trace output and not > really focused on the core issue. The debug output stuff seemed to need > some attention because of the hanging and continuous output of stack > traces. It makes it difficult to figure out what's going on when there > are a cascade of failures going on. > > I'll upload those small changes next and try to figure out what's going > on with kjournald and the rtmutex. This is going to be a pain. I still can't replicate the problem here with my made up test suite, so I'm going to take a guess and shove some memory barriers in the rt mutex code. That code looked a bit suspect. http://mmlinux.sourceforge.net/public/against-2.6.17-rt8-2.diff bill - 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/