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<base href="https://bugs.freedesktop.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [BYT] GPU hangs with GfxBench 4.0 CarChase"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96743">96743</a>
</td>
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<tr>
<th>Summary</th>
<td>[BYT] GPU hangs with GfxBench 4.0 CarChase
</td>
</tr>
<tr>
<th>Product</th>
<td>Mesa
</td>
</tr>
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<th>Version</th>
<td>git
</td>
</tr>
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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>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
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<th>Priority</th>
<td>medium
</td>
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<th>Component</th>
<td>Drivers/DRI/i965
</td>
</tr>
<tr>
<th>Assignee</th>
<td>idr@freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>eero.t.tamminen@intel.com
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
</td>
</tr>
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<th>Depends on</th>
<td>96291
</td>
</tr></table>
<p>
<div>
<pre>Setup:
- BYT N2820
- Ubuntu 16.04
- GfxBench v4: <a href="https://gfxbench.com/linux-download/">https://gfxbench.com/linux-download/</a>
- Mesa from few days ago
- drm-nightly kernel from same day as Mesa
Use-case:
- Start GfxBench
- Run Car Chase test few times
Expected outcome:
- No hangs
Actual outcome:
- On some runs, multiple recovered GPU hangs in dmesg
------------
[drm] GPU HANG: ecode 7:0:0x87f77c3e, in testfw_app [10406], reason: Engine(s)
hung, action: reset
[drm] GPU HANG: ecode 7:0:0x8ff8ffff, in testfw_app [10406], reason: Engine(s)
hung, action: reset
[drm] GPU HANG: ecode 7:0:0x87f7edfe, in testfw_app [10406], reason: Engine(s)
hung, action: reset
[drm] GPU HANG: ecode 7:0:0x85fffffc, in testfw_app [10406], reason: Engine(s)
hung, action: reset
------------
Unlike with <a class="bz_bug_link
bz_status_VERIFIED bz_closed"
title="VERIFIED FIXED - [BDW/SKL] GPU hangs with programs using compute shaders"
href="show_bug.cgi?id=96291">bug 96291</a>, this doesn't necessarily happen on every run.
I've seen GPU hangs with this test also on HSW GT3e and BXT-P, but there
they're rarer. As they don't happen everytime, I'm not sure whether this is
Mesa issue (haven't got test machine myself, these are from automated run
logs).</pre>
</div>
</p>
<div id="referenced">
<hr style="border: 1px dashed #969696">
<b>Referenced Bugs:</b>
<ul>
<li>
[<a class="bz_bug_link
bz_status_VERIFIED bz_closed"
title="VERIFIED FIXED - [BDW/SKL] GPU hangs with programs using compute shaders"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96291">Bug 96291</a>] [BDW/SKL] GPU hangs with programs using compute shaders
</li>
</ul>
</div>
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