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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [G71] "Assertion `bkref' failed" reproducible with glmark2"
href="https://bugs.freedesktop.org/show_bug.cgi?id=99354">99354</a>
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<th>Summary</th>
<td>[G71] "Assertion `bkref' failed" reproducible with glmark2
</td>
</tr>
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<th>Product</th>
<td>Mesa
</td>
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<th>Version</th>
<td>13.0
</td>
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<th>Hardware</th>
<td>x86 (IA32)
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<th>OS</th>
<td>Linux (All)
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<th>Status</th>
<td>NEW
</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>Drivers/DRI/nouveau
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<th>Assignee</th>
<td>nouveau@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>barra_cuda@gmx.com
</td>
</tr>
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<th>QA Contact</th>
<td>nouveau@lists.freedesktop.org
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=128875" name="attach_128875" title="glmark2 backtrace">attachment 128875</a> <a href="attachment.cgi?id=128875&action=edit" title="glmark2 backtrace">[details]</a></span>
glmark2 backtrace
[G71] "Assertion `bkref' failed" reproducible with glmark2
Using glmark2 I can trigger the assertion
"glmark2: pushbuf.c:238: pushbuf_krel: Assertion `bkref' failed."
quite easily. I'm not sure if this is a duplicate of other bugs.
The fastest way to reproduce seems to be:
./glmark2 -b
buffer:columns=200:interleave=false:update-dispersion=0.99:update-fraction=0.5:update-method=subdata:buffer-usage=static
--run-forever
Changing some parameters from that command line still trigger the assertion,
but usually it takes a bit more time. The command above triggers for me
after 2.5 seconds (usually less than that), while for example the following
command
./glmark2 -b
buffer:columns=200:interleave=false:update-dispersion=0.9:update-fraction=0.5:update-method=map
--run-forever
can trigger even a minute later.
I've used glmark2 at commit f413c5b423250b4fde8f95639ad368d5b02c5b9b.
Software versions:
xf86-video-nouveau-1.0.13
mesa-13.0.3
libdrm-2.4.74
xorg-server-1.19.0
Hardware: nVidia Quadro FX 1500
Backtrace attached.</pre>
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