From mboxrd@z Thu Jan 1 00:00:00 1970 From: ebiederm@xmission.com (Eric W. Biederman) Subject: Re: 2.6.19-rc5 x86_64 irq 22: nobody cared Date: Thu, 09 Nov 2006 10:12:44 -0700 Message-ID: References: <4551D12D.4010304@trollprod.org> <20061109064956.GG4729@stusta.de> <20061109084937.52af8768@freekitty> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from ebiederm.dsl.xmission.com ([166.70.28.69]:136 "EHLO ebiederm.dsl.xmission.com") by vger.kernel.org with ESMTP id S1424149AbWKIROC (ORCPT ); Thu, 9 Nov 2006 12:14:02 -0500 In-Reply-To: <20061109084937.52af8768@freekitty> (Stephen Hemminger's message of "Thu, 9 Nov 2006 08:49:37 -0800") Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Stephen Hemminger Cc: Adrian Bunk , Olivier Nicolas , Takashi Iwai , Jaroslav Kysela , linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org, gregkh@suse.de, linux-pci@atrey.karlin.mff.cuni.cz, len.brown@intel.com, linux-acpi@vger.kernel.org, Andrew Morton , Linus Torvalds Stephen Hemminger writes: > On Thu, 9 Nov 2006 07:49:56 +0100 > Adrian Bunk wrote: > >> On Wed, Nov 08, 2006 at 01:44:29PM +0100, Olivier Nicolas wrote: >> >> > Hi, >> >> Hi Olivier, >> >> > 2.6.19-rc5 does not boot properly, I have tried pci=routeirq, irpoll >> > without success. >> > >> > Full details (.config, dmesg, /proc/interrupts) are in >> > http://olivn.trollprod.org/2.6.19-rc5-irq.tar.gz >> >> thanks for your report! >> >> I might be wrong, but looking at the dmesg: >> - irq 22 is the hda_intel IRQ >> - the "irq 22: nobody cared" is immediately before the >> "hda_intel: No response from codec, disabling MSI..." >> - in the routeirq case, the hda_intel IRQ as well as the >> IRQ in the error message change to 21 >> >> So it might be related to the hda_intel MSI check. > > More likely the MSI management routines don't work for disabling MSI. Well brand new MSI handling could be buggy, the disable hypothesis doesn't make much sense on boot up. > I am debugging a problem where MSI doesn't work across suspend/resume, > I suspect the base MSI code needs fixing. Rethinking the interfaces maybe I don't think the code is broken I think most likely it is just not designed to do the right thing. I remember thinking how horrible that code is, when I read through it. Eric