[Bug 54226] [snb 3.5] stale semaphore sync seqno (typically as seen on bcs->rcs)

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Tue Apr 9 13:59:41 PDT 2013


https://bugs.freedesktop.org/show_bug.cgi?id=54226

--- Comment #69 from mikhail.v.gavrilov at gmail.com ---
(In reply to comment #67)
> (In reply to comment #61)
> > Created attachment 76448 [details]
> > i915_error_state (kernel 3.8.2 Fedora) with path (write mbox regs twice on
> > snb, v2)
> > 
> > Any updates?
> 
> Mikhail,
> 
> Could you please try patch:
> [PATCH] drm/i915: Resurrect ring kicking for semaphores, selectively

Hm, seems better but problem still here

[59120.008798] [drm:i915_hangcheck_hung] *ERROR* Hangcheck timer elapsed... GPU
hung
[59120.008802] [drm] capturing error event; look for more information in
/debug/dri/0/i915_error_state
[59120.012173] [drm:kick_ring] *ERROR* Kicking stuck semaphore on render ring

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