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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>
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<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Corruption with "sna: Mask the batch length""
href="https://bugs.freedesktop.org/show_bug.cgi?id=89816">bug 89816</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEW
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<td>RESOLVED
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<td style="text-align:right;">Resolution</td>
<td>---
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<td>FIXED
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Corruption with "sna: Mask the batch length""
href="https://bugs.freedesktop.org/show_bug.cgi?id=89816#c2">Comment # 2</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Corruption with "sna: Mask the batch length""
href="https://bugs.freedesktop.org/show_bug.cgi?id=89816">bug 89816</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>It's a kernel bug; though the fix appears to have landed in the wrong queue:
commit 743e78c1d726d875b98ff9689cc77c4d3d5d9ae2
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date: Fri Mar 27 11:02:10 2015 +0000
drm/i915: Skip allocating shadow batch for 0-length batches
However, the amount of corruption is worrisome. There should be transient
corruptoin from the batch failure, but it should then fallback to software
rendering and so fix up the corruption. Something for me to investigate.</pre>
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