[Bug 89334] 4.0-rc1 kernel GPU hang: ecode 3:0:0x02faffcf (i915) stuck on render ring ecode 3:0:0x02faffcf

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89334

--- Comment #17 from Chris Wilson <chris at chris-wilson.co.uk> ---
(In reply to Jim from comment #16)
> My explanation got cut about your patch:
> 
> After I applied your patch I thought that you nailed it but the problem
> persists; however, syslog doesn't complain but the error log AND xorg do. I
> enclose both for your perusal. What was different also was that this time I
> didn't have to keep trying until a error log was produced - It was produced
> when the issue happened.

(In reply to Jim from comment #14)
> Created attachment 113925 [details]
> Result after patch 113914 applied

Right, I think perhaps we have a second issue here. Sadly the error capture
failed - it dumped the wrong batch - could you grab a few more and lets see if
one pinpoints the issue. So I think the fenced vertex buffer is definitely one
issue, and that is probably responsible for the system hangs. Now on to the
next.

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