From mboxrd@z Thu Jan  1 00:00:00 1970
From: Daniel Vetter <daniel@ffwll.ch>
Subject: Re: frequent x crashes with gen6/sna
Date: Thu, 13 Oct 2011 16:00:23 +0200
Message-ID: <20111013140023.GH2938@phenom.ffwll.local>
References: <20111013134522.274480@gmx.net>
Mime-Version: 1.0
Content-Type: text/plain; charset="us-ascii"
Content-Transfer-Encoding: 7bit
Return-path: <intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org>
Received: from mail-ww0-f43.google.com (mail-ww0-f43.google.com [74.125.82.43])
	by gabe.freedesktop.org (Postfix) with ESMTP id 1D9389E9FD
	for <intel-gfx@lists.freedesktop.org>;
	Thu, 13 Oct 2011 06:59:41 -0700 (PDT)
Received: by wwf27 with SMTP id 27so1421681wwf.12
	for <intel-gfx@lists.freedesktop.org>;
	Thu, 13 Oct 2011 06:59:41 -0700 (PDT)
Content-Disposition: inline
In-Reply-To: <20111013134522.274480@gmx.net>
List-Unsubscribe: <http://lists.freedesktop.org/mailman/options/intel-gfx>,
	<mailto:intel-gfx-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <http://lists.freedesktop.org/archives/intel-gfx>
List-Post: <mailto:intel-gfx@lists.freedesktop.org>
List-Help: <mailto:intel-gfx-request@lists.freedesktop.org?subject=help>
List-Subscribe: <http://lists.freedesktop.org/mailman/listinfo/intel-gfx>,
	<mailto:intel-gfx-request@lists.freedesktop.org?subject=subscribe>
Sender: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org
Errors-To: intel-gfx-bounces+gcfxdi-intel-gfx=m.gmane.org@lists.freedesktop.org
To: Dieter Mummenschanz <mummenschanz@gmx.net>
Cc: intel-gfx@lists.freedesktop.org
List-Id: intel-gfx@lists.freedesktop.org

On Thu, Oct 13, 2011 at 03:45:22PM +0200, Dieter Mummenschanz wrote:
> hello,
> 
> using latest drm-core-next git from Dave Airlie as well as the latest xf86-video-intel git my system (Sandybridge Mobile (GT2+)) still hangs frequently right before X dies. This happens every time the GPU is under considerable stress, like decoding a va-api stream and running OpenGL apps at the same time.
> syslog records the hang:
> 
> kernel: [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
> kernel: [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state
> kernel: [drm:i915_wait_request] *ERROR* i915_wait_request returns -11 (awaiting 3263296 at 3263293, next 3263297)
> 
> after 3-4 seconds the system resumes normal following the X crash a couple of minutes later:
> kernel: [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
> kernel: [drm:ironlake_update_pch_refclk] *ERROR* enabling SSC on PCH
> 
> gpu related module opts are:
> i915.i915_enable_rc6=1 pcie_aspm=force i915.i915_enable_fbc=1 i915.lvds_downclock=1
> 
> at least rc6 enabled is mandatory for me since I ran a mobile gpu.
> 
> any ideas?

We have (unfortunately) still a few outstanding issues. To check whether
yours is new, please attach the full dmesg and the i915_error_state of the
gpu hang.

Thanks, Daniel
-- 
Daniel Vetter
Mail: daniel@ffwll.ch
Mobile: +41 (0)79 365 57 48