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<base href="https://bugs.freedesktop.org/" />
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<body><table border="1" cellspacing="0" cellpadding="8">
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<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - glDrawElements segfault when compiled into display list"
href="https://bugs.freedesktop.org/show_bug.cgi?id=60518">60518</a>
</td>
</tr>
<tr>
<th>Assignee</th>
<td>mesa-dev@lists.freedesktop.org
</td>
</tr>
<tr>
<th>Summary</th>
<td>glDrawElements segfault when compiled into display list
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr>
<tr>
<th>OS</th>
<td>Linux (All)
</td>
</tr>
<tr>
<th>Reporter</th>
<td>core13@gmx.net
</td>
</tr>
<tr>
<th>Hardware</th>
<td>x86-64 (AMD64)
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Version</th>
<td>9.0
</td>
</tr>
<tr>
<th>Component</th>
<td>Mesa core
</td>
</tr>
<tr>
<th>Product</th>
<td>Mesa
</td>
</tr></table>
<p>
<div>
<pre>VDrift git on a Fedora 18 box (Linux 3.7.6-201.fc18.x86_64, 2.1 Mesa 9.0.1)
will segfault in the GL2/1 fallback path:
Program received signal SIGSEGV, Segmentation fault.
0x00007fffed92461b in _save_VertexAttrib4fvARB (index=<optimized out>, v=0x0)
at ../../../src/mesa/vbo/vbo_attrib_tmp.h:547
547 ATTR4FV(VBO_ATTRIB_GENERIC0 + index, v);
(gdb) bt
#0 0x00007fffed92461b in _save_VertexAttrib4fvARB (index=<optimized out>,
v=0x0)
at ../../../src/mesa/vbo/vbo_attrib_tmp.h:547
#1 0x00007fffed828a1a in _ae_ArrayElement (elt=0) at
../../../src/mesa/main/api_arrayelt.c:1670
#2 0x00007fffed9197bd in _save_OBE_DrawElements (mode=4, count=<optimized
out>, type=<optimized out>,
indices=<optimized out>) at ../../../src/mesa/vbo/vbo_save_api.c:1252
#3 0x000000000058bfb9 in MODEL::GenerateListID (this=0x9e7080,
error_output=...) at src/graphics/model.cpp:185
#4 0x000000000058b8b3 in MODEL::Load (this=0x9e7080, varray=...,
error_output=..., genlist=true)
at src/graphics/model.cpp:85
The code looks like this (with vertex, texcoord, normal pointers set):
glNewList(listid, GL_COMPILE);
glDrawElements(GL_TRIANGLES, facecount, GL_UNSIGNED_INT, faces);
glEndList();
Apitrace attached.</pre>
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