Re: [git pull] drm next tree

From: Stephen Clark
Date: Wed Mar 23 2011 - 08:22:12 EST

On 03/22/2011 10:19 PM, Linus Torvalds wrote:
So I had hoped - yes, very naïve of me, I know - that this merge
window would be different.

But it's not.

On Wed, Mar 16, 2011 at 9:09 PM, Dave Airlie<airlied@xxxxxxxx> wrote:
i915: big 855 fix, lots of output setup refactoring, lots of misc fixes.
.. and apparently a lot of breakage too. My crappy laptop that I abuse
for travel is - once more - broken by the updates. I cannot suspend
and resume, because every resume seems to fail.

One of the more useful failures was:

[ 61.656055] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer
elapsed... GPU hung
[ 61.656079] [drm] capturing error event; look for more information
in /debug/dri/0/i915_error_state
[ 61.664387] [drm:i915_wait_request] *ERROR* i915_wait_request
returns -11 (awaiting 2 at 0, next 3)

and I'm attaching the error_state file from that particular case here.
In other cases it seems to just hang entirely.

Keith/Jesse/Chris - I don't know that it's i915, and it will take
forever to bisect (I'll try). But it does seem pretty likely.

Why can't the gpu be reset/restarted when this happens? When a nic card gets hung it is reinitialized
and restarted why not the gpu?


"They that give up essential liberty to obtain temporary safety,
deserve neither liberty nor safety." (Ben Franklin)

"The course of history shows that as a government grows, liberty
decreases." (Thomas Jefferson)

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