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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 - Random recoverable GPU hangs in trivial GpuTest Triangle test"
href="https://bugs.freedesktop.org/show_bug.cgi?id=111424">111424</a>
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<th>Summary</th>
<td>Random recoverable GPU hangs in trivial GpuTest Triangle test
</td>
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<th>Product</th>
<td>DRI
</td>
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<th>Version</th>
<td>DRI git
</td>
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<th>Hardware</th>
<td>Other
</td>
</tr>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<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>DRM/Intel
</td>
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<th>Assignee</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
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<th>Reporter</th>
<td>eero.t.tamminen@intel.com
</td>
</tr>
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<th>QA Contact</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr>
<tr>
<th>CC</th>
<td>intel-gfx-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=145093" name="attach_145093" title="SKL GT4e hang, with drm-tip git from few days ago and fullscreen Triangle benchmark">attachment 145093</a> <a href="attachment.cgi?id=145093&action=edit" title="SKL GT4e hang, with drm-tip git from few days ago and fullscreen Triangle benchmark">[details]</a></span>
SKL GT4e hang, with drm-tip git from few days ago and fullscreen Triangle
benchmark
Setup:
* HW: SKL GT2, SKL GT4e
* Display: FullHD
* kernel: drm-tip git v5.2 and git from few days ago
* OS: Ubuntu 18.04
* Desktop: lightdm/Unity/compiz
* Test: GpuTest v0.7 (latest)
Use-case:
* Trivial windowed/composited use-case (SKL GT2 hang, with drm-tip v5.2):
GpuTest /test=triangle /width=1366 /height=768 /msaa=1 /no_scorebox
/benchmark /benchmark_duration_ms=35000
* Trivial fullscreen use-case (SKL GT4e hang, with drm-tip git from few days
ago):
GpuTest /test=triangle /width=1920 /height=1080 /fullscreen /msaa=1
/no_scorebox /benchmark /benchmark_duration_ms=35000
Expected output:
* No hangs
Actual output:
* (Recoverable) GPU hang.
Notes:
* Hang is rare
* Test-case is trivial 3D one, and therefore very high FPS. It does a (fast)
clear, draws a 1/2 window sized triangle (benchmark's framework draws also a
small bar for progress and blits penguin image to indicate Linux, but those are
so small they don't impact perf)
* Due to simplicity of the benchmark and its resulting high FPS, this looks
like race-condition, in kernel I think</pre>
</div>
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