Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1758614Ab3HMQfn (ORCPT ); Tue, 13 Aug 2013 12:35:43 -0400 Received: from s16502780.onlinehome-server.info ([87.106.93.118]:53246 "EHLO fireflyinternet.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1757806Ab3HMQfj (ORCPT ); Tue, 13 Aug 2013 12:35:39 -0400 X-Default-Received-SPF: pass (skip=forwardok (res=PASS)) x-ip-name=78.156.73.22; Date: Tue, 13 Aug 2013 17:34:39 +0100 From: Chris Wilson To: Sedat Dilek Cc: Stephen Rothwell , linux-next@vger.kernel.org, linux-kernel@vger.kernel.org, Daniel Vetter , Dave Airlie , DRI , intel-gfx , "s.dilek" Subject: Re: linux-next: Tree for Aug 13 [ screen corruption in graphical mode ] Message-ID: <20130813163439.GA8805@cantiga.alporthouse.com> Mail-Followup-To: Chris Wilson , Sedat Dilek , Stephen Rothwell , linux-next@vger.kernel.org, linux-kernel@vger.kernel.org, Daniel Vetter , Dave Airlie , DRI , intel-gfx , "s.dilek" References: <20130813092554.GA4519@cantiga.alporthouse.com> <20130813093920.GB4519@cantiga.alporthouse.com> <20130813095259.GC4519@cantiga.alporthouse.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) X-Originating-IP: 78.156.73.22 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1691 Lines: 43 On Tue, Aug 13, 2013 at 06:23:29PM +0200, Sedat Dilek wrote: > On Tue, Aug 13, 2013 at 5:59 PM, Sedat Dilek wrote: > > I have bisected the issue on Linux v3.11-rc5 + drm-intel-nightly: > > > > 5456fe3882812aba251886e36fe55bfefb8e8829 is the first bad commit > > commit 5456fe3882812aba251886e36fe55bfefb8e8829 > > Author: Chris Wilson > > Date: Thu Aug 8 14:41:07 2013 +0100 > > > > drm/i915: Allocate LLC ringbuffers from stolen > > > > As stolen objects now behave identically (wrt to default LLC cacheing) > > as their normal system counterparts, we no longer have to differentiate > > our usage for ringbuffers. So allocate them from stolen on SNB+ as well. > > > > Signed-off-by: Chris Wilson > > Reviewed-by: Ville Syrj?l? > > Signed-off-by: Daniel Vetter > > > > :040000 040000 de063a052f39095f4d2f51b49caef9f827df41e8 > > 1c819aa5501a9fcc9912a5c7c037c71b9b9e9a6b M drivers > > > > See also attached files! > > > > With the attached revert-patch my system is OK (with my customized X stack). No indication of a GPU hang? I'm puzzled as to how this ends up with the scanout being misread. cat /sys/kernel/debug/dri/0/i915_gem_stolen cat /sys/kernel/debug/dri/0/i915_gem_framebuffer would be interesting. -Chris -- Chris Wilson, Intel Open Source Technology Centre -- 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/