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

[bugzilla-daemon at freedesktop.org]

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

--- Comment #93 from LongerDev <longerdev at gmail.com> ---
Created attachment 82773
  --> https://bugs.freedesktop.org/attachment.cgi?id=82773&action=edit
i915_error_state with new patch

(In reply to comment #92)
> Created attachment 82768 [details] [review]
> New read-after-write patch
> 
> Oops, my mistake, please try again.

Now loading, but after five minutes test:
793485 Jul 21 17:32:56 localhost kernel: [  321.432882] hda-intel 0000:00:1b.0:
Unstable LPIB (32740 >= 4096); disabling LPIB delay counting
793486 Jul 21 17:34:49 localhost kernel: [  434.291085]
[drm:i915_hangcheck_elapsed] *ERROR* stuck on render ring
793487 Jul 21 17:34:49 localhost kernel: [  434.291088] [drm] capturing error
event; look for more information in /sys/kernel/debug/dri/0/i915_error_state
793488 Jul 21 17:34:49 localhost kernel: [  434.307124]
[drm:i915_set_reset_status] *ERROR* render ring hung inside bo (0xbfe2000 ctx
1) at 0xbfe21dc

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