Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1422664AbWJRRGK (ORCPT ); Wed, 18 Oct 2006 13:06:10 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1422696AbWJRRGK (ORCPT ); Wed, 18 Oct 2006 13:06:10 -0400 Received: from smtp.osdl.org ([65.172.181.4]:47565 "EHLO smtp.osdl.org") by vger.kernel.org with ESMTP id S1422664AbWJRRGI (ORCPT ); Wed, 18 Oct 2006 13:06:08 -0400 Date: Wed, 18 Oct 2006 10:02:19 -0700 From: Stephen Hemminger To: Takashi Iwai Cc: Prakash Punnoor , Adrian Bunk , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org, mingo@redhat.com, hnguyen@de.ibm.com, perex@suse.cz Subject: Re: [Alsa-devel] [RFC: 2.6.19 patch] snd-hda-intel: default MSI to off Message-ID: <20061018100219.5cd08ffd@freekitty> In-Reply-To: References: <200610050938.10997.prakash@punnoor.de> <5aa69f860610051030l7323ec2el545873570052f077@mail.gmail.com> <200610052309.01155.prakash@punnoor.de> <20061017211301.GE3502@stusta.de> <20061017144053.29b6b29c@freekitty> Organization: OSDL X-Mailer: Sylpheed-Claws 2.5.0-rc3 (GTK+ 2.10.6; i486-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 Content-Length: 2017 Lines: 57 On Wed, 18 Oct 2006 12:24:54 +0200 Takashi Iwai wrote: > At Tue, 17 Oct 2006 14:40:53 -0700, > Stephen Hemminger wrote: > > > > On Tue, 17 Oct 2006 23:13:01 +0200 > > Adrian Bunk wrote: > > > > > On Thu, Oct 05, 2006 at 11:08:57PM +0200, Prakash Punnoor wrote: > > > > Am Donnerstag 05 Oktober 2006 19:30 schrieb Fatih A????c??: > > > > > 2006/10/5, Prakash Punnoor : > > > > > > Hi, > > > > > > > > > > > > subjects say it all. Without irqpoll my nic doesn't work anymore. I added > > > > > > Ingo > > > > > > to cc, as my IRQs look different, so it may be a prob of APIC routing or > > > > > > the > > > > > > like. > > > > > > > > > > Can you try booting with pci=nomsi ? I have a similar problem with my > > > > > > > > I used snd-hda-intel.disable_msi=1 and this actually helped! Now the nforce > > > > nic works w/o problems. So it was the audio driver causing havoc on the nic. > > > >... > > > > > > Unless someone finds and fixes what causes such problems, I'd therefore > > > suggest the patch below to let MSI support to be turned off by default. > > > > > > cu > > > Adrian > > > > > > > It shouldn't be that hard to write a small bit of code to force an interrupt > > and catch it, that's what other drivers do to workaround the BIOS braindamage > > that seems to be rampant (until M$ Vista comes out and supports MSI). > > OK, what about a patch like below? > > It's against the latest ALSA tree, so please pull alsa.git from > git://kernel.org/pub/scm/linux/kernel/git/perex/alsa.git > before applying it (this tree includes only patches to be pushed to > 2.6.19). > > > Takashi > Don't you need to check return value from pci_enable_msi()? -- Stephen Hemminger - 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/