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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 - oom since st/mesa: implement PBO downloads for ReadPixels"
href="https://bugs.freedesktop.org/show_bug.cgi?id=96343">96343</a>
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<th>Summary</th>
<td>oom since st/mesa: implement PBO downloads for ReadPixels
</td>
</tr>
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<th>Product</th>
<td>Mesa
</td>
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<th>Version</th>
<td>git
</td>
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<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
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<th>OS</th>
<td>Linux (All)
</td>
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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/Gallium/radeonsi
</td>
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<th>Assignee</th>
<td>dri-devel@lists.freedesktop.org
</td>
</tr>
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<th>Reporter</th>
<td>adf.lists@gmail.com
</td>
</tr>
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<th>QA Contact</th>
<td>dri-devel@lists.freedesktop.org
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=124282" name="attach_124282" title="oom">attachment 124282</a> <a href="attachment.cgi?id=124282&action=edit" title="oom">[details]</a></span>
oom
Tonga with xserver 1.8.3, agd5f drm-next-4.8-wip, git
mesa/llvm/libdrm/xf86-video-amdgpu.
Desktop is fluxbox = non-compositing.
Since -
commit ed0e9862c56d13381f0414b5a835fd31960edfe6
Author: Nicolai Hähnle <<a href="mailto:nicolai.haehnle@amd.com">nicolai.haehnle@amd.com</a>>
Date: Tue Apr 26 13:19:28 2016 -0500
st/mesa: implement PBO downloads for ReadPixels
v2: require PIPE_CAP_SAMPLER_VIEW_TARGET; technically only needed for some
of
the texture targets, but all hardware that has shader images should
also
have this cap.
I can provoke an oom on xorg as attached by displaying a couple of 1920 xwds
with display from ImageMagick and flipping between then, plus some middle mouse
clicking (which magnifys a section and gives info on the pixel clicked).
Oom is not instant - may take a couple of minutes clicking/flipping.
Polling free when doing this doesn't indicate any issue until it triggers so
it's not slowly leaking, but goes quickly at some point filling swap then oom.</pre>
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