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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [rv6xx] RADEON_FLAG_GTT_WC causes GPU to reset when playing Second Life / other games"
href="https://bugs.freedesktop.org/show_bug.cgi?id=86864">86864</a>
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<tr>
<th>Summary</th>
<td>[rv6xx] RADEON_FLAG_GTT_WC causes GPU to reset when playing Second Life / other games
</td>
</tr>
<tr>
<th>Product</th>
<td>Mesa
</td>
</tr>
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<th>Version</th>
<td>git
</td>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Drivers/Gallium/r600
</td>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>shawn.starr@rogers.com
</td>
</tr></table>
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<pre>I've git bisected from git master and came up with this commit that causes GPU
to lock up (DRI driver locks up, I can ssh an reboot the laptop cleanly
however).
Kernel: 3.17.2-300.fc21.x86_64
[root@devbox mesa-20141127]# git bisect good
7b4276d7acf2e0f77044cb50caa6ad936fa78786 is the first bad commit
commit 7b4276d7acf2e0f77044cb50caa6ad936fa78786
Author: Michel Dänzer <<a href="mailto:michel.daenzer@amd.com">michel.daenzer@amd.com</a>>
Date: Tue Aug 26 18:21:50 2014 +0900
r600g,radeonsi: Always use GTT again for PIPE_USAGE_STREAM buffers
Putting those in VRAM can cause long pauses due to buffers being moved
into / out of VRAM.
Bugzilla: <a class="bz_bug_link
bz_status_REOPENED "
title="REOPENED - Long pauses with Unreal demo Elemental on R9270X since : Always flush the HDP cache before submitting a CS to the GPU"
href="show_bug.cgi?id=84662">https://bugs.freedesktop.org/show_bug.cgi?id=84662</a>
Cc: <a href="mailto:mesa-stable@lists.freedesktop.org">mesa-stable@lists.freedesktop.org</a>
Reviewed-by: Alex Deucher <<a href="mailto:alexander.deucher@amd.com">alexander.deucher@amd.com</a>>
:040000 040000 672dc7643603cfccc8b9c85c83f37db32c26beeb
8e4a9f33de638b7df98284614a0da3bb3373f320 M src
With this reverted from this point back to Sept 7th, I have stability with the
r600g DRI driver.</pre>
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