From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1750816AbWDIVXZ (ORCPT ); Sun, 9 Apr 2006 17:23:25 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1750922AbWDIVXZ (ORCPT ); Sun, 9 Apr 2006 17:23:25 -0400 Received: from mta10.srv.hcvlny.cv.net ([167.206.4.205]:28719 "EHLO mta10.srv.hcvlny.cv.net") by vger.kernel.org with ESMTP id S1750816AbWDIVXY (ORCPT ); Sun, 9 Apr 2006 17:23:24 -0400 Date: Sun, 09 Apr 2006 17:23:23 -0400 From: Nick Orlov Subject: Re: 2.6.17-rc1-mm2: badness in 3w_xxxx driver In-reply-to: <20060409124301.44a9567c.akpm@osdl.org> To: Andrew Morton Cc: linux-kernel@vger.kernel.org Mail-followup-to: Andrew Morton , linux-kernel@vger.kernel.org Message-id: <20060409212323.GA4811@nickolas.homeunix.com> MIME-version: 1.0 Content-type: text/plain; charset=koi8-r Content-transfer-encoding: 7BIT Content-disposition: inline References: <20060409182306.GA4680@nickolas.homeunix.com> <20060409113240.630b9a24.akpm@osdl.org> <20060409191256.GA4609@nickolas.homeunix.com> <20060409124301.44a9567c.akpm@osdl.org> User-Agent: Mutt/1.5.11+cvs20060403 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Apr 09, 2006 at 12:43:01PM -0700, Andrew Morton wrote: > Nick Orlov wrote: > > > > Confirmed, this patch solves the "badness" problem for me. > > yup, thanks. > > > I still experiencing a weird hangs though (the box just hangs, no > > messages on console/syslog, nothing). I'll try to nail it down. > > > > 2.6.16-mm2 works like a charm with the same config. > > Do you know which patches should I try to revert first? > > Gee, 2.6.16-mm2 was a long time ago. > > Tried sysrq? > > echo 1 > /proc/sys/kernel/sysrq > > ALT-SYSRQ-P or ALT-SYSRQ-T > > Is the NMi watchdog enabled? Boot with `nmi_watchdog=1', make sure that > the NMI counts are incrementing in /proc/interrupts. > > Failing all that, testing 2.6.17-rc1 would be interesting. 2.6.17-rc1 fails in the same fashion - it hangs "randomly". Good news that I've found the pattern and solution: it always happens when 2 applications open /dev/dsp simultaneously. Applying the following patches published by Takashi Iwai solves the problem: http://marc.theaimsgroup.com/?l=linux-kernel&m=114423578508165&w=2 http://marc.theaimsgroup.com/?l=linux-kernel&m=114424198614019&w=2 Not sure if the first one is enough. I would probably recommend to put them into the hot-fixes, since many people can be frustrated because of this. -- With best wishes, Nick Orlov.