Sure.. seems this error is happening frequently to gather the debug info(will send out as soon as it hits). As for the bisect it is doable when I get the time. Just need a reliable recreation of the error so the bisect is correct.

Justin P. Mattock

----- Reply message ----- From: "Daniel Vetter" daniel@ffwll.ch To: "Justin P. Mattock" justinmattock@gmail.com Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Subject: [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung Date: Tue, Oct 23, 2012 10:40 am

On Tue, Oct 23, 2012 at 10:06:52AM -0700, Justin P. Mattock wrote:

This is happening both with MAINLINE and NEXT.

basically system is running fine, then under load system becomes really sluggish and unresponsive. I was able to get dmesg of the error..:

[ 7745.007008] ath9k 0000:05:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP [ 7745.007736] wlan0: associate with 68:7f:74:b8:05:82 (try 1/3) [ 7745.011456] wlan0: RX AssocResp from 68:7f:74:b8:05:82 (capab=0x411 status=0 aid=5) [ 7745.011529] wlan0: associated [ 8120.812482] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung [ 8120.812642] [drm] capturing error event; look for more information in /debug/dri/0/i915_error_state [ 8122.328682] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU hung [ 8122.328845] [drm:i915_reset] *ERROR* GPU hanging too fast, declaring wedged! [ 8122.328850] [drm:i915_reset] *ERROR* Failed to reset chip.

full log is here: http://fpaste.org/7xH8/

as for good kernels from what I remember 3.6.0-rc1. I can try a bisect on this once I get the time. or if anybody has a patch I can test.

Can you please rehand your machine, and then grab the i915_error_state from debugfs? That contains the gpu hang dump we need to diagnose things.

And the bisect would obviously be awesome.

Thanks, Daniel