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<body><span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [865G] GPU hung - stale data/cacheline in batch"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63221">bug 63221</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEEDINFO
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<td>RESOLVED
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [865G] GPU hung - stale data/cacheline in batch"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63221#c14">Comment # 14</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [865G] GPU hung - stale data/cacheline in batch"
href="https://bugs.freedesktop.org/show_bug.cgi?id=63221">bug 63221</a>
from <span class="vcard"><a class="email" href="mailto:chris@chris-wilson.co.uk" title="Chris Wilson <chris@chris-wilson.co.uk>"> <span class="fn">Chris Wilson</span></a>
</span></b>
<pre>I know now what caused this regression for you, the fix is:
commit 22fd5ca947b58901927d100d2b1aa0f1672b3435
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date: Fri Jun 28 16:54:08 2013 +0100
drm/i915: Only clear write-domains after a successful wait-seqno
In the introduction of the non-blocking wait, I cut'n'pasted the wait
completion code from normal locked path. Unfortunately, this neglected
that the normal path returned early if the wait returned early. The
result is that read-only waits may return whilst the GPU is still
writing to the bo.
Fixes regression from
commit 3236f57a0162391f84b93f39fc1882c49a8998c7 [v3.7]
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date: Fri Aug 24 09:35:09 2012 +0100
drm/i915: Use a non-blocking wait for set-to-domain ioctl</pre>
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