From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S263525AbTJWKRo (ORCPT ); Thu, 23 Oct 2003 06:17:44 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S263531AbTJWKRo (ORCPT ); Thu, 23 Oct 2003 06:17:44 -0400 Received: from data.iemw.tuwien.ac.at ([128.131.70.3]:10629 "EHLO data.iemw.tuwien.ac.at") by vger.kernel.org with ESMTP id S263525AbTJWKRn (ORCPT ); Thu, 23 Oct 2003 06:17:43 -0400 Message-ID: <3F97AACB.2020609@tuwien.ac.at> Date: Thu, 23 Oct 2003 12:17:47 +0200 From: Samuel Kvasnica Organization: IEMW TU-Wien User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 X-Accept-Language: en-us, en, de-at, cs MIME-Version: 1.0 To: linux-kernel@vger.kernel.org CC: Vitez Gabor , ivtv-devel@lists.sourceforge.net Subject: Re: nforce2 random lockups - still no solution ? References: <3F95748E.8020202@tuwien.ac.at> <200310211113.00326.lkml@lpbproductions.com> <20031022085449.GA21393@swszl.szkp.uni-miskolc.hu> <3F96847C.4000506@tuwien.ac.at> <20031022133327.GA25283@swszl.szkp.uni-miskolc.hu> In-Reply-To: <20031022133327.GA25283@swszl.szkp.uni-miskolc.hu> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Dear Gabor, thantks a lot, indeed you are right ! I've been confused by some nforce FAQs where 'nolapic' option was recommended. In fact I did never check whether this option really exists. Now, after recompiling the kernel the framegrabber works with uncompressed stream for almost 24h and it is rock-solid. So, a workaround recommendation for all using ivtv driver on nforce2 chipsets and kernels up to 2.4.22: *** RECOMPILE YOUR KERNEL WITH LOCAL APIC DISABLED ***, otherwise you'll experience very rare random lockups while watching the compressed stream and lockups within 10 minutes when watching the uncompressed yuv stream. What I'd like to know is whether this bug is AMD processor or chipset related. Is there a patch available ? I tried 2.6.0-test8 and it wasn't stable. I'd prefer to use APIC instead of XT-PIC because some drivers e.g. kernel DRM don't support shared interrupts and I can't get own interrupt for the video card. Sam Vitez Gabor wrote: >Hi, > >On Wed, Oct 22, 2003 at 03:22:04PM +0200, Samuel Kvasnica wrote: > > >>I'm booting the kernel with acpi=off, noapic and nolapic options and >> >> > >nolapic? That's not a valid kernel command line parameter I'm afraid. > >fgrep -ri nolapic $KERNEL_SOURCE_DIR > >gives nothing. ??? > > > Gabor > >