Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758841Ab2ECVy2 (ORCPT ); Thu, 3 May 2012 17:54:28 -0400 Received: from oproxy7-pub.bluehost.com ([67.222.55.9]:60762 "HELO oproxy7-pub.bluehost.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1755247Ab2ECVy1 (ORCPT ); Thu, 3 May 2012 17:54:27 -0400 Date: Thu, 3 May 2012 14:54:22 -0700 From: Jesse Barnes To: Jiri Slaby Cc: Chris Wilson , Jiri Slaby , LKML , dri-devel@lists.freedesktop.org Subject: Re: i915_driver_irq_handler: irq 42: nobody cared Message-ID: <20120503145422.0214a3ad@jbarnes-desktop> In-Reply-To: <4FA2F592.1040104@suse.cz> References: <20120409101119.47e770b2@jbarnes-desktop> <4F83F3B5.8080704@suse.cz> <20120410092619.26a15165@jbarnes-desktop> <4F8477D1.4080102@suse.cz> <20120410113448.540e4c1d@jbarnes-desktop> <4F848F88.7060009@suse.cz> <20120410203212.GN4115@phenom.ffwll.local> <20120410133411.52dc52ed@jbarnes-desktop> <20120411104012.GI4296@phenom.ffwll.local> <4FA2E2D8.5050303@suse.cz> <20120503211537.GN4983@phenom.ffwll.local> <4FA2F592.1040104@suse.cz> X-Mailer: Claws Mail 3.7.9 (GTK+ 2.24.6; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Identified-User: {10642:box514.bluehost.com:virtuous:virtuousgeek.org} {sentby:smtp auth 67.161.37.189 authed with jbarnes@virtuousgeek.org} Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1231 Lines: 31 On Thu, 03 May 2012 23:16:02 +0200 Jiri Slaby wrote: > On 05/03/2012 11:15 PM, Daniel Vetter wrote: > >>> Shot in the dark, let's disable msi a bit. Can you try the below patch? > >> > >> Yeah, no IRQ_NONE at the end of i915_driver_irq_handler now. So MSI is > >> busted, either in the card, the chipset or the kernel. Any idea how to > >> find out? > > > > Ok, so MSI is busted. Can you please paste lspci -nn for you intel gpu? > > Sure: > 00:02.0 VGA compatible controller [0300]: Intel Corporation 82G33/G31 > Express Integrated Graphics Controller [8086:29c2] (rev 02) Ok nevermind about the INTx-; now I'm not sure if it means anything or not in an MSI context (the spec doesn't require it, but I thought our devices would toggle it if they were sending interrupts). But since line level works for you I guess it's ok to blacklist your chipset until we poke some hw folks internally about this. Thanks, -- Jesse Barnes, Intel Open Source Technology Center -- 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/