Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1030208AbVJ1O5z (ORCPT ); Fri, 28 Oct 2005 10:57:55 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1030209AbVJ1O5z (ORCPT ); Fri, 28 Oct 2005 10:57:55 -0400 Received: from 41-052.adsl.zetnet.co.uk ([194.247.41.52]:33293 "EHLO mail.esperi.org.uk") by vger.kernel.org with ESMTP id S1030208AbVJ1O5y (ORCPT ); Fri, 28 Oct 2005 10:57:54 -0400 To: Dave Airlie Cc: Alessandro Suardi , Linux Kernel Mailing List Subject: Re: X unkillable in R state sometimes on startx , /proc/sysrq-trigger T output attached References: <5a4c581d0510251335ke8e7ae6n883e0b44a9920ce4@mail.gmail.com> <21d7e9970510260325o2a47e6f5gc64d29eec42de086@mail.gmail.com> From: Nix X-Emacs: the prosecution rests its case. Date: Fri, 28 Oct 2005 15:57:41 +0100 In-Reply-To: <21d7e9970510260325o2a47e6f5gc64d29eec42de086@mail.gmail.com> (Dave Airlie's message of "26 Oct 2005 11:29:26 +0100") Message-ID: <87hdb1pu3e.fsf@amaterasu.srvr.nix> User-Agent: Gnus/5.1006 (Gnus v5.10.6) XEmacs/21.4 (Corporate Culture, linux) 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: 1351 Lines: 30 On 26 Oct 2005, Dave Airlie said: > Your getting an X hang which is usually a DRM/AGP or X configuartion problems.. Indeed. As a random example, when I installed my new Radeon 9250 last week, I flipped the AGPMode to 8 because the card said it was capable of that... and X went CPU-mad within seconds of starting 3D rendering. Looking at the kernel logs made the cause clear: Oct 25 22:09:08 hades info: kernel: agpgart: Putting AGP V2 device at 0000:00:00.0 into 1x mode Whether the cause was that X thought it was using 8x and the kernel thought it was using 1x, I don't know, but changing it to 4 brought everything into agreement and eliminated the hangs. (This was with X.org 6.8.99.901.) So AGP is indeed one of those things which a misconfiguration of can cause all sorts of lockup-like problems. (Just like misconfiguring any of the other buses in the system, I suppose.) -- `"Gun-wielding recluse gunned down by local police" isn't the epitaph I want. I am hoping for "Witnesses reported the sound up to two hundred kilometers away" or "Last body part finally located".' --- James Nicoll - 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/