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<base href="https://bugs.freedesktop.org/" />
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - HiZ on SNB causes GPU hang with WebGL web app"
href="https://bugs.freedesktop.org/show_bug.cgi?id=70740">70740</a>
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<th>Assignee</th>
<td>idr@freedesktop.org
</td>
</tr>
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<th>Summary</th>
<td>HiZ on SNB causes GPU hang with WebGL web app
</td>
</tr>
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<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
</td>
</tr>
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<th>Severity</th>
<td>critical
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</td>
</tr>
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<th>Reporter</th>
<td>joe.konno@linux.intel.com
</td>
</tr>
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<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Version</th>
<td>unspecified
</td>
</tr>
<tr>
<th>Component</th>
<td>Drivers/DRI/i965
</td>
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<th>Product</th>
<td>Mesa
</td>
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<p>
<div>
<pre>If HiZ enabled on any recent Mesa on a "sandybridge" platform, the Chrome
browser with WebGL enabled will hang the GPU within 10-30 minutes. Not seen on
"ivybridge".
To reproduce on a "sandybridge" machine:
1. Build Mesa with HiZ enabled
2. Enable WebGL in the Chrome browser
3. Log into Google Maps, and "try the new maps"
Expected result: Can enjoy WebGL web application to heart's content.
Actual result: Within 10-30 minutes, GPU hangs. Game over.</pre>
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