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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [regression][hang] Trine1EE hangs GPU after loading screen on Mesa3D-17.3 and later"
href="https://bugs.freedesktop.org/show_bug.cgi?id=105670">105670</a>
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<th>Summary</th>
<td>[regression][hang] Trine1EE hangs GPU after loading screen on Mesa3D-17.3 and later
</td>
</tr>
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<th>Product</th>
<td>Mesa
</td>
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<th>Version</th>
<td>17.3
</td>
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<th>Hardware</th>
<td>Other
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Keywords</th>
<td>regression
</td>
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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>glsl-compiler
</td>
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<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>iive@yahoo.com
</td>
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<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>The game is Trine1 Enchanted Edition, running under Wine-3.3.
The game works fine with Mesa-17.2.0, but with Mesa-17.3.0 hangs right after
the loading screen.
The hang is soft, the driver tries to reset itself each 10 seconds and turns
off my monitor. I am able to switch to text console (kms one) and kill the Xorg
server, then reboot the machine. The kernel driver refuses to accept any new
commands.
Using software render I was able to capture a small apitrace (90MB compressed)
that successfully reproduces the issue. It could be found here:
<a href="https://drive.google.com/open?id=1RNKExfdBXUCN7SIhcrdiMwsvwIoCVMTg">https://drive.google.com/open?id=1RNKExfdBXUCN7SIhcrdiMwsvwIoCVMTg</a>
By using the qapitrace lookup, I managed to locate the exact operation that
hangs. Not surprising, it is a draw operation:
#55251 - works
#55252 - hangs
I tried to git bisect between 17.2.0 and 17.3.0, but I only managed to narrow
it down to few steps:
git bisect good 375c4868efa3cf549699557989c8f5c08c0710f0
git bisect bad 09f6bd5ef27c1b16b1468441b070b60c2d57523d
The rest of my bisect log is full of skips, because I cannot find a commit that
would work at all. All of them fail to run even `glxgears`, some crash, other
give asserts in R600 code, in xmlconfig etc...
My hardware is AMD Radeon HD5670 Redwood Evergreen (R600 driver). Using
"R600_DEBUG=nosb" does not workaround the issue.
Also the bug is reproducible on AMD RX480, running latest mesa3d master,
llvm-svn 7.0.0svn_r328112 and experimental kernel.</pre>
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