[Bug 60681] New: *ERROR* Kicking stuck semaphore on render ring with i915

[bugzilla-daemon at bugzilla.kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=60681

            Bug ID: 60681
           Summary: *ERROR* Kicking stuck semaphore on render ring with
                    i915
           Product: Drivers
           Version: 2.5
    Kernel Version: 3.1.0.4
          Hardware: All
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - Intel)
          Assignee: intel-gfx-bugs at lists.freedesktop.org
          Reporter: toralf.foerster at gmx.de
                CC: intel-gfx-bugs at lists.freedesktop.org
        Regression: No

Created attachment 107083
  --> https://bugzilla.kernel.org/attachment.cgi?id=107083&action=edit
/i915_error_state

in syslog I got (ThinkPAd T420, stable Gentoo) :

Aug  2 18:41:42 n22 kernel: [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer
elapsed... GPU hung
Aug  2 18:41:42 n22 kernel: [drm] capturing error event; look for more
information in /sys/kernel/debug/dri/0/i915_error_state
Aug  2 18:41:42 n22 kernel: [drm:kick_ring] *ERROR* Kicking stuck semaphore on
render ring
Aug  2 18:41:42 n22 kernel: [drm:__gen6_gt_force_wake_get] *ERROR* Timed out
waiting for forcewake old ack to clear.

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