From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751396AbWFEUGw (ORCPT ); Mon, 5 Jun 2006 16:06:52 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751402AbWFEUGv (ORCPT ); Mon, 5 Jun 2006 16:06:51 -0400 Received: from smtp.osdl.org ([65.172.181.4]:27590 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1751396AbWFEUGu (ORCPT ); Mon, 5 Jun 2006 16:06:50 -0400 Date: Mon, 5 Jun 2006 13:06:26 -0700 From: Andrew Morton To: Dave Jones Cc: linux-kernel@vger.kernel.org, Jaroslav Kysela , Takashi Iwai Subject: Re: 2.6.17-rc5-mm3 Message-Id: <20060605130626.3f2917a2.akpm@osdl.org> In-Reply-To: <20060605194844.GA6143@redhat.com> References: <20060603232004.68c4e1e3.akpm@osdl.org> <20060605194844.GA6143@redhat.com> X-Mailer: Sylpheed version 2.2.4 (GTK+ 2.8.17; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 5 Jun 2006 15:48:45 -0400 Dave Jones wrote: > On Sat, Jun 03, 2006 at 11:20:04PM -0700, Andrew Morton wrote: > > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17-rc5/2.6.17-rc5-mm3/ > > > > - Lots of PCI and USB updates > > > > - The various lock validator, stack backtracing and IRQ management problems > > are converging, but we're not quite there yet. > > Thought I'd try my bi-annual "poke at -mm". Results were less > than spectacular. > > http://www.codemonkey.org.uk/junk/DSC00347.JPG > First the sound driver oopsed. That's a bug in sound/pci/cs4281.c. There's a debug patch in -mm ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.17-rc5/2.6.17-rc5-mm3/broken-out/debug-shared-irqs.patch which trips up drivers which request an IRQ before their IRQ handler is ready to accept IRQs (they'll crash in real life if the IRQ is shared). > Then, the whole thing locked up after probing the parallel port. > I disabled it in the BIOS, and then it locked up probing the floppy drive.. > http://www.codemonkey.org.uk/junk/DSC00348.JPG That looks like the same thing? > System is still alive, and responds to keyboard, but makes no forward progress. > > (sysrq-B spewed a lockdep trace and then rebooted. I'll try and get > that hooked up to a serial console) > > On a whim, I enabled the floppy drive in the BIOS, and rebooted. > That got me here. http://www.codemonkey.org.uk/junk/DSC00349.JPG > Same dead userspace. So does that. > Off to find a serial cable. Try reverting debug-shared-irqs.patch, or disable the sound driver?