Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756137AbYFTAFe (ORCPT ); Thu, 19 Jun 2008 20:05:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1754016AbYFTAFY (ORCPT ); Thu, 19 Jun 2008 20:05:24 -0400 Received: from casper.infradead.org ([85.118.1.10]:41392 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753058AbYFTAFX (ORCPT ); Thu, 19 Jun 2008 20:05:23 -0400 Date: Thu, 19 Jun 2008 17:05:12 -0700 From: Arjan van de Ven To: "Ryan Hope" Cc: linux-mm@vger.kernel.org, LKML Subject: Re: [BUG] Lockless patches cause hardlock under heavy IO Message-ID: <20080619170512.6ef5cd3a@infradead.org> In-Reply-To: <48f7fe350806190745u1b78ae61ue8e71619db5756f7@mail.gmail.com> References: <48f7fe350806181415l4eba61b3i1d206de03147575e@mail.gmail.com> <20080618142849.13e90c6d@infradead.org> <48f7fe350806190745u1b78ae61ue8e71619db5756f7@mail.gmail.com> Organization: Intel X-Mailer: Claws Mail 3.3.1 (GTK+ 2.12.10; i386-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 714 Lines: 21 On Thu, 19 Jun 2008 10:45:43 -0400 "Ryan Hope" wrote: > Well enabling these debug options is sorta useless because once it > hardlocks I cant see or do anything.. > the nice thing about lockdep is that it spots *potential* deadlocks; often well before the actual deadlock happens... -- If you want to reach me at my work email, use arjan@linux.intel.com For development, discussion and tips for power savings, visit http://www.lesswatts.org -- 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/