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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 - [SNA HSW bisected] git commit "sna: Skip sync if we have an idle coherent bo" causes corruption"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94125">bug 94125</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
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<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
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<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [SNA HSW bisected] git commit "sna: Skip sync if we have an idle coherent bo" causes corruption"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94125#c8">Comment # 8</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - [SNA HSW bisected] git commit "sna: Skip sync if we have an idle coherent bo" causes corruption"
href="https://bugs.freedesktop.org/show_bug.cgi?id=94125">bug 94125</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>Decided to revert the shortcircuit on the write side:
commit aacc3442bb8c280a6ebc1fc1e34451613a72d7c4
Author: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
Date: Thu Feb 18 10:15:11 2016 +0000
sna: Restrict set-domain short-circuit to readonly
If we write to the bo, we do want the kernel to mark it as dirty (for
the purposes of swap invalidation and the like), so we can't apply the
shortcircuit.
Signed-off-by: Chris Wilson <<a href="mailto:chris@chris-wilson.co.uk">chris@chris-wilson.co.uk</a>>
that should almost completely nerf the commit (except iirc you will still hit
the shortcircuit!).</pre>
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