Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756646Ab0GEROk (ORCPT ); Mon, 5 Jul 2010 13:14:40 -0400 Received: from mx2.mail.elte.hu ([157.181.151.9]:48458 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753456Ab0GEROi (ORCPT ); Mon, 5 Jul 2010 13:14:38 -0400 Date: Mon, 5 Jul 2010 19:14:20 +0200 From: Ingo Molnar To: Christoph Hellwig Cc: Linus Torvalds , Jens Axboe , Peter Zijlstra , Andrew Morton , Linux Kernel Mailing List , Thomas Gleixner , "Rafael J. Wysocki" Subject: Re: [regression] Crash in wb_clear_pending() (was: Linux 2.6.35-rc4) Message-ID: <20100705171420.GA29697@elte.hu> References: <20100705085550.GA26775@elte.hu> <20100705164022.GA26995@infradead.org> <20100705171125.GB26202@elte.hu> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20100705171125.GB26202@elte.hu> User-Agent: Mutt/1.5.20 (2009-08-17) X-ELTE-SpamScore: -1.1 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.1 required=5.9 tests=BAYES_05 autolearn=no SpamAssassin version=3.2.5 -1.1 BAYES_05 BODY: Bayesian spam probability is 1 to 5% [score: 0.0232] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1198 Lines: 34 * Ingo Molnar wrote: > * Christoph Hellwig wrote: > > > We had a thread about it a few days ago. The following commit from > > Jens' 2.6.36 tree needs to go into 2.6.35 to sort the issues with the > > fragile wakeup mechanism which only got worse by the patches out: > > > > http://git.kernel.dk/?p=linux-2.6-block.git;a=commitdiff;h=79338d2a78ab78efdc1698f1309766a039addf9d > > I've attached it below - in case someone wants to apply it before it hits > upstream. > > Scary big patch btw. - is there no smaller fix? Nor does it apply to v2.6.35-rc4: Applying: writeback: simplify the write back thread queue error: patch failed: fs/fs-writeback.c:703 error: fs/fs-writeback.c: patch does not apply Patch failed at 0001 writeback: simplify the write back thread queue I guess it has other dependencies as well. If you want me to test the fix then please send a version that applies. Thanks, Ingo -- 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/