From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751221AbWDEMPs (ORCPT ); Wed, 5 Apr 2006 08:15:48 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751230AbWDEMPr (ORCPT ); Wed, 5 Apr 2006 08:15:47 -0400 Received: from mail.gondor.com ([212.117.64.182]:37389 "EHLO moria.gondor.com") by vger.kernel.org with ESMTP id S1751221AbWDEMPr (ORCPT ); Wed, 5 Apr 2006 08:15:47 -0400 Date: Wed, 5 Apr 2006 14:15:38 +0200 From: Jan Niehusmann To: Takashi Iwai Cc: Ken Moffat , linux-kernel@vger.kernel.org, alsa-devel@alsa-project.org Subject: Re: [Alsa-devel] Slab corruptions & Re: 2.6.17-rc1: Oops in sound applications Message-ID: <20060405121537.GA4807@knautsch.gondor.com> References: <20060404133814.GA11741@knautsch.gondor.com> <20060404190631.GA4895@knautsch.gondor.com> <20060404231911.GA4862@knautsch.gondor.com> <20060405002846.GA5201@knautsch.gondor.com> <20060405090117.GB4794@knautsch.gondor.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.11+cvs20060126 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Apr 05, 2006 at 01:14:54PM +0200, Takashi Iwai wrote: > Try the patch below. The change in pcm_native.c may be unnecessary, > but it's better so. > If it works, I'll submit the patches with a proper log. The patch (applied to 2.6.17-rc1) does fix the oops, but sound is still garbled with twinkle using /dev/dsp. About this garbled sound: I call an echo service on my asterisk server, which just echoes back everything I say. Works well using /dev/dsp with 2.6.16, but with 2.6.17-rc1, even with the patch applied, I hear no echo at all for ~1s. After that, I hear a strongly distorted echo. If I change the twinkle settings to use the ALSA native devices instead of /dev/dsp, everything is fine. Pure playback, eg. with xmms, is fine with 2.6.17-rc1 using /dev/dsp. Jan