From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753647Ab3AGIdE (ORCPT ); Mon, 7 Jan 2013 03:33:04 -0500 Received: from cantor2.suse.de ([195.135.220.15]:45258 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751798Ab3AGIdD (ORCPT ); Mon, 7 Jan 2013 03:33:03 -0500 Date: Mon, 07 Jan 2013 09:32:58 +0100 Message-ID: From: Takashi Iwai To: Vincent Blut Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Subject: Re: [3.6.9 -> 3.7.1 regression] sound: snd_hda_intel codec probing issue? In-Reply-To: <1357421043.3912.13.camel@lamella> References: <1356704740.3953.26.camel@lamella> <1357421043.3912.13.camel@lamella> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.8 Emacs/24.2 (x86_64-suse-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org At Sat, 05 Jan 2013 22:24:03 +0100, Vincent Blut wrote: > > Le jeudi 03 janvier 2013 à 10:19 +0100, Takashi Iwai a écrit : > > At Fri, 28 Dec 2012 15:25:40 +0100, > > Vincent Blut wrote: > > > > > > Hi, > > > > > > Since I updated to Linux 3.7.1, listening to some audio/video bits > > > frequently cause the following: > > > > > > [ 7896.166946] hda-intel: azx_get_response timeout, switching to polling > > > mode: last cmd=0x020c0000 > > > [ 7897.173444] hda-intel: No response from codec, disabling MSI: last > > > cmd=0x020c0000 > > > [ 7898.179932] hda_intel: azx_get_response timeout, switching to > > > single_cmd mode: last cmd=0x020c0000 > > > [ 7898.179983] hda-codec: out of range cmd 0:0:20:400:fffff7ff > > > [ 9445.034371] plugin-containe[5873]: segfault at 7f44bb95e639 ip > > > 00007f44e454bca0 sp 00007f44c91165f8 error 4 in > > > libc-2.13.so[7f44e442c000+180000] > > > > > > It seems to be a codec probing failure (?). This is really fatal because > > > the sound become very choppy and can't recover until I reboot. > > > I'll try to play with 'probe_mask' kernel parameter to see if I can > > > narrow the correct codec slots! > > > > > > By the way I can't reproduce this on 3.6.9, so is there something that > > > changed in this area in 3.7.1? > > > > If it's new in 3.7, this could be a regression by runtime D3. > > Try to pass power_save_controller=0 option to snd-hda-intel module > > (or change it via sysfs dynamically). > > > > > > thanks, > > > > Takashi > > Hi Takashi, > > Well, power_save_controller=0 seems to do the trick but I get plenty of: > > > [ 15.389270] pci_pm_runtime_suspend(): azx_runtime_suspend+0x0/0x37 > [snd_hda_intel] returns -11 > [ 25.178725] pci_pm_runtime_suspend(): azx_runtime_suspend+0x0/0x37 > [snd_hda_intel] returns -11 > [ 72.296536] pci_pm_runtime_suspend(): azx_runtime_suspend+0x0/0x37 > [snd_hda_intel] returns -11 > [ 2318.147505] pci_pm_runtime_suspend(): azx_runtime_suspend+0x0/0x37 > [snd_hda_intel] returns -11 > [ 6086.029839] pci_pm_runtime_suspend(): azx_runtime_suspend+0x0/0x37 > [snd_hda_intel] returns -11 > [ 7390.772818] pci_pm_runtime_suspend(): azx_runtime_suspend+0x0/0x37 > [snd_hda_intel] returns -11 > > > which I think is fixed in 3.8 by commit 6eb827d23577 Yes, and should be merged in the next stable release. > So what's the next step? Adding a quirk for this sound card? Or is there > a way to fix the root cause? One more thing to test is whether azx_runtime_resume() is properly called before this error happens. Could you put a debug print and check it? If it's not called, it implies that the refcount or something else got broken. If it's called but the device doesn't respond, it's a hardware-specific issue, and the likely solution is to add a device-specific quirk. thanks, Takashi