intel graphic card hanging (Hangcheck timer elapsed... GPU hung)

[Norbert Preining]

Dear all,

(please Cc)

I am running 2.6.34-rc2 + git 01e7770 commit (yesterday) with KMS on Debian/sid:
xserver-xorg: 7.5+5
video-intel: 2.9.1-3

Running D2X-xl (self compiled) (descent2 open source code) X suddenly died,
and after that gdm could not be restarted because after a few secs
it went dead again.

In the logs I see:
kernel: [ 2486.341227] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
kernel: [ 2486.341240] render error detected, EIR: 0x00000000
kernel: [ 2486.341278] [drm:i915_do_wait_request] *ERROR* i915_do_wait_request returns -5 (awaiting 113671 at 113604)
kernel: [ 2486.669008] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
kernel: [ 2486.669012] render error detected, EIR: 0x00000000
kernel: [ 2486.669522] [drm:i915_do_wait_request] *ERROR* i915_do_wait_request returns -5 (awaiting 113672 at 113604)
kernel: [ 2487.524230] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
kernel: [ 2487.524243] render error detected, EIR: 0x00000000
kernel: [ 2487.524284] [drm:i915_do_wait_request] *ERROR* i915_do_wait_request returns -5 (awaiting 113673 at 113604)
kernel: [ 2487.912237] [drm:i915_hangcheck_elapsed] *ERROR* Hangcheck timer elapsed... GPU hung
kernel: [ 2487.916175] render error detected, EIR: 0x00000000
kernel: [ 2487.920137] [drm:i915_do_wait_request] *ERROR* i915_do_wait_request returns -5 (awaiting 113674 at 113604)

Stopping gdm and restarting didn't help to get the graphics card back to normal.

If you have any ideas how to fix/track/debug that please let me know,
same if you need more information.

Best wishes

Norbert
------------------------------------------------------------------------
Norbert Preining            preining@{jaist.ac.jp, logic.at, debian.org}
JAIST, Japan            TU Wien, Austria           Debian TeX Task Force
DSA: 0x09C5B094   fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
------------------------------------------------------------------------
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