Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S261312AbUKIAAg (ORCPT ); Mon, 8 Nov 2004 19:00:36 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S261313AbUKIAAg (ORCPT ); Mon, 8 Nov 2004 19:00:36 -0500 Received: from hirsch.in-berlin.de ([192.109.42.6]:31971 "EHLO hirsch.in-berlin.de") by vger.kernel.org with ESMTP id S261312AbUKIAAa (ORCPT ); Mon, 8 Nov 2004 19:00:30 -0500 X-Envelope-From: kraxel@bytesex.org To: Olaf Titz Cc: linux-kernel@vger.kernel.org Subject: Re: Why my computer freeze completely with xawtv ? References: <20041107224621.GB5360@magma.epfl.ch> <418EB58A.7080309@kolivas.org> <20041108000229.GC5360@magma.epfl.ch> <418EB8EB.30405@kolivas.org> <20041108003323.GE5360@magma.epfl.ch> <418EBFE5.5080903@kolivas.org> From: Gerd Knorr Organization: SUSE Labs, Berlin Date: 09 Nov 2004 00:45:36 +0100 In-Reply-To: Message-ID: <87is8frjkv.fsf@bytesex.org> User-Agent: Gnus/5.09 (Gnus v5.9.0) Emacs/21.3 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1200 Lines: 25 Olaf Titz writes: > > I suspect two things: > > - there is some bug in bttv and similar drivers (DVB) that corrupts memory > > related with internal mm and vfs structures or does something equally bad, > > - or maybe PCI bandwitch is overflowed, but I do not think it should > > happen. > > This (first alternative) sounds related to the problem I had with DVB; > I got visible corruption of video memory when using xawtv on the DVB > video device using Xv on a G550. Thats something completely different and usually caused by the gfx card not being able to handle the bandwith needed for full video display. Result are aborted PCI transfers, which results in the video being displayed fine on the left side and not being displayed correctly on the right side of the window. Usually can be workarounded by using 16 bpp instead of 32 which halves the video data rate. Gerd -- #define printk(args...) fprintf(stderr, ## args) - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/