<html>
<head>
<base href="https://bugs.freedesktop.org/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - [i965] brw::vec4_visitor::run SIGSEGV on OpenBSD"
href="https://bugs.freedesktop.org/show_bug.cgi?id=91399">91399</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>[i965] brw::vec4_visitor::run SIGSEGV on OpenBSD
</td>
</tr>
<tr>
<th>Product</th>
<td>Mesa
</td>
</tr>
<tr>
<th>Version</th>
<td>10.6
</td>
</tr>
<tr>
<th>Hardware</th>
<td>Other
</td>
</tr>
<tr>
<th>OS</th>
<td>OpenBSD
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>medium
</td>
</tr>
<tr>
<th>Component</th>
<td>Drivers/DRI/i965
</td>
</tr>
<tr>
<th>Assignee</th>
<td>idr@freedesktop.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jsg@openbsd.org
</td>
</tr>
<tr>
<th>QA Contact</th>
<td>intel-3d-bugs@lists.freedesktop.org
</td>
</tr></table>
<p>
<div>
<pre>When building the 10.6 branch I ran into the Following crash on OpenBSD with
glxgears. I didn't see the same with master. My 10.6 has a few additional
patches to build on OpenBSD but none in src/mesa/drivers/dri/i965.
Starting program: /usr/X11R6/bin/glxgears
Running synchronized to the vertical refresh. The framerate should be
approximately the same as the monitor refresh rate.
Program received signal SIGSEGV, Segmentation fault.
0x0000026dba64bd6a in brw::vec4_visitor::run (this=0x7f7ffffc5ca0) at
brw_vec4.cpp:1714
1714 sanity_param_count = prog->Parameters->NumParameters;
Current language: auto; currently c++
(gdb) bt
#0 0x0000026dba64bd6a in brw::vec4_visitor::run (this=0x7f7ffffc5ca0) at
brw_vec4.cpp:1714
#1 0x0000026dba64c6f9 in brw_vs_emit (brw=0x26d720ed030, prog=0x26d1285ec30,
c=0x7f7ffffc6ca0,
prog_data=0x7f7ffffc6bb0, mem_ctx=0x26cf41adb70,
final_assembly_size=0x7f7ffffc6d54) at brw_vec4.cpp:1936
#2 0x0000026dba673238 in brw_codegen_vs_prog (brw=0x26d720ed030,
prog=0x26d1285ec30, vp=0x26d25b66000, key=Variable "key" is not available.
)
at brw_vs.c:293
#3 0x0000026dba6734a3 in brw_vs_precompile (ctx=0x26d720ed030,
shader_prog=0x26d1285ec30, prog=0x26d25b66000)
at brw_vs.c:529
#4 0x0000026dba640ca7 in brw_link_shader (ctx=0x26d720ed030,
shProg=0x26d1285ec30) at brw_shader.cpp:84
#5 0x0000026dba427ee9 in _mesa_glsl_link_shader (ctx=0x26d720ed030,
prog=0x26d1285ec30)
at program/ir_to_mesa.cpp:2964
#6 0x0000026dba3357aa in link_program (ctx=0x26d720ed030, program=Variable
"program" is not available.
) at main/shaderapi.c:946
#7 0x0000026dba425338 in meta_clear (ctx=0x26d720ed030, buffers=18, glsl=true)
at drivers/common/meta.c:1546
#8 0x0000026dba57d809 in brw_clear (ctx=0x26d720ed030, mask=0) at
brw_clear.c:263
#9 0x0000026aeab0302e in __register_frame_info () from /usr/X11R6/bin/glxgears
#10 0x0000026aeab03c6d in __register_frame_info () from /usr/X11R6/bin/glxgears
#11 0x0000026aeab01e31 in ?? () from /usr/X11R6/bin/glxgears
#12 0x0000000000000000 in ?? ()
(gdb) p prog
$1 = (gl_program * const) 0x0
Extended renderer info (GLX_MESA_query_renderer):
Vendor: Intel Open Source Technology Center (0x8086)
Device: Mesa DRI Intel(R) Ironlake Mobile (0x46)
Version: 10.6.2
Accelerated: yes
Video memory: 192MB
Unified memory: yes
Preferred profile: compat (0x2)
Max core profile version: 0.0
Max compat profile version: 2.1
Max GLES1 profile version: 1.1
Max GLES[23] profile version: 2.0
OpenGL vendor string: Intel Open Source Technology Center
OpenGL renderer string: Mesa DRI Intel(R) Ironlake Mobile
OpenGL version string: 2.1 Mesa 10.6.2 (git-e7f2411)
OpenGL shading language version string: 1.20</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are the QA Contact for the bug.</li>
</ul>
</body>
</html>