From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752774Ab2AWJSa (ORCPT ); Mon, 23 Jan 2012 04:18:30 -0500 Received: from cantor2.suse.de ([195.135.220.15]:47583 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750695Ab2AWJS3 (ORCPT ); Mon, 23 Jan 2012 04:18:29 -0500 Date: Mon, 23 Jan 2012 10:18:24 +0100 Message-ID: From: Takashi Iwai To: Petr Baudis Cc: Jonathan Nieder , alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org Subject: Re: hda-intel: azx_get_response timeout, switching to polling mode: last cmd=0x01db0000 In-Reply-To: <20120121091602.GF30898@machine.or.cz> References: <20111229025953.15211.24880.reportbug@machine.or.cz> <20111229062105.GB28780@elie.Belkin> <20120121091602.GF30898@machine.or.cz> User-Agent: Wanderlust/2.15.6 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL/10.7 Emacs/23.3 (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=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org At Sat, 21 Jan 2012 10:16:02 +0100, Petr Baudis wrote: > > Hi! > > On Thu, Dec 29, 2011 at 12:21:05AM -0600, Jonathan Nieder wrote: > > Petr Baudis wrote[1]: > > > > > Version: 3.1.5-1 > > [...] > > > this bug is twofold - I'm not sure which of the two problems is the real > > > culprit of the issue I'm seeing, and if it's worth fixing both or just > > > either one. It boils down to sometimes choppy playback and mainly > > > applications getting stuck on some audio operations. > > [...] > > > This did not use to happen at least back around 2.6.32. > > [...] > > > I'd be willing to do some bisecting if people believe it would make > > > sense. > > > > I don't see any relevant newer fixes, but could you test the for-next > > branch from [2] anyway? Output from the alsa-info.sh script[3] would > > also be useful. > > I'm really sorry for taking so long - this is still an issue for me, but > contrary to my expectations, I was not able to reboot this machine yet > and it might take some more time (weeks...) before that's convenient. > I will try the then-current kernel and for-next branch then. > > The output from the alsa-info.sh script is at: > > http://www.alsa-project.org/db/?f=184928832b33b23c68d17460604b9a37af0fac4b Thanks. Switching to the polling mode is really harmless. So, basically you can ignore these messages. I can change it only as a debug message. OTOH, if the switching to single_cmd mode happens, this is a serious problem. But, as far as I see in alsa-info.sh output, it didn't happen. Takashi