Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753331AbZJAVvb (ORCPT ); Thu, 1 Oct 2009 17:51:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752639AbZJAVv3 (ORCPT ); Thu, 1 Oct 2009 17:51:29 -0400 Received: from casper.infradead.org ([85.118.1.10]:53273 "EHLO casper.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752616AbZJAVvZ (ORCPT ); Thu, 1 Oct 2009 17:51:25 -0400 Date: Thu, 1 Oct 2009 09:18:58 +0200 From: Arjan van de Ven To: Ingo Molnar Cc: Linus Torvalds , Eric Dumazet , Martin Schwidefsky , Thomas Gleixner , John Stultz , Linux Kernel Mailing List , Peter Zijlstra Subject: Re: Linux 2.6.32-rc1 Message-ID: <20091001091858.411d8df0@infradead.org> In-Reply-To: <20090930203818.GA24070@elte.hu> References: <4AC10365.7090802@gmail.com> <4AC2712C.4080901@gmail.com> <20090929232248.735bf4df@infradead.org> <20090930170754.0886ff2e@infradead.org> <20090930193204.GA16350@elte.hu> <4AC3BC89.2050404@gmail.com> <20090930202233.GA21890@elte.hu> <20090930203818.GA24070@elte.hu> Organization: Intel X-Mailer: Claws Mail 3.7.2 (GTK+ 2.16.6; i586-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: 807 Lines: 26 On Wed, 30 Sep 2009 22:38:18 +0200 Ingo Molnar wrote: > > > > probably a "memory" clobber is needed, alternative_io() doesnt > > > > provide it. > > > > > > Yeah, good catch. > > > > Yeah - i'm testing this right now, it looks like something that > > could explain the hang. > > Yeah - that was the cause of the hang I woke up at 2am realizing that this was missing.. but you beat me to it ;) -- Arjan van de Ven Intel Open Source Technology Centre 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/