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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Segfault in intel_mipmap_tree.c:2571 calling glReadPixels from mpv on wayland"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91848">91848</a>
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<th>Summary</th>
<td>Segfault in intel_mipmap_tree.c:2571 calling glReadPixels from mpv on wayland
</td>
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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>Other
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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
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<th>Component</th>
<td>Drivers/DRI/i965
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<th>Assignee</th>
<td>idr@freedesktop.org
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<th>Reporter</th>
<td>kevmitch@gmail.com
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<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=118048" name="attach_118048" title="gdb -ex run --no-config --force-window --idle --msg-level=all=trace build/mpv">attachment 118048</a> <a href="attachment.cgi?id=118048&action=edit" title="gdb -ex run --no-config --force-window --idle --msg-level=all=trace build/mpv">[details]</a></span>
gdb -ex run --no-config --force-window --idle --msg-level=all=trace build/mpv
When taking a "window" screenshot in mpv (Ctrl+S), which reads the image
directly from the framebuffer using glReadPixels on wayland, I get the attached
backtrace which terminates at
intel_miptree_attach_map (mode=1, h=1, w=960, y=0, x=0, slice=0, level=0,
mt=0x0) at
../../../../../../../src/mesa/drivers/dri/i965/intel_mipmap_tree.c:2571
This works fine on X11.
Chipset: moble IvyBridge
mesa:4de86e1371b0d59a5b9a787b726be3d373024647
mpv: a8e6de90fee1699c5de89eb1ae2182ceb096a65b
linux: 4.1.4</pre>
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