CGAL users discussion list

["Laurent Rineau (GeometryFactory)" <>]

On Friday 09 July 2010 10:42:01 Xie Yi wrote:
> Hi,
> 
> here is the result of debug. I hope it could help.
> 
> abbotxie@abbotxie-laptop:~/Programs/CGAL-3.6/demo/Surface_reconstruction_po
> ints_3$ gdb -ex r --args ./Point_set_demo
> GNU gdb (GDB) 7.1-ubuntu
> Copyright (C) 2010 Free Software Foundation, Inc.
> License GPLv3+: GNU GPL version 3 or later
> <http://gnu.org/licenses/gpl.html>
> This is free software: you are free to change and redistribute it.
> There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> and "show warranty" for details.
> This GDB was configured as "i486-linux-gnu".
> For bug reporting instructions, please see:
> <http://www.gnu.org/software/gdb/bugs/>...
> Reading symbols from
> /home/abbotxie/Programs/CGAL-3.6/demo/Surface_reconstruction_points_3/Point
> _set_demo...(no debugging symbols found)...done.
> Starting program:
> /home/abbotxie/Programs/CGAL-3.6/demo/Surface_reconstruction_points_3/Point
> _set_demo [Thread debugging using libthread_db enabled]
> ### Loading "libPS_demo_average_spacing_plugin.so"...
> ### Loading "libPS_demo_cleaning_plugin.so"...
> ### Loading "libPS_demo_inside_out_plugin.so"...
> ### Loading "libPS_demo_local_spacing_plugin.so"...
> ### Loading "libPS_demo_normal_estimation_plugin.so"...
> ### Loading "libPS_demo_off_plugin.so"...
> ### Loading "libPS_demo_poisson_plugin.so"...
> ### Loading "libPS_demo_simplification_plugin.so"...
> ### Loading "libPS_demo_smoothing_plugin.so"...
> ### Loading "libPS_demo_xyz_plugin.so"...
> SplatRenderer: warning floating point textures are not supported.
> SplatRenderer: warning copy of the depth buffer is not supported.
> Succesfully loaded shader func 'VisibilityVP' in file 'Raycasting.glsl'
> Succesfully loaded shader func 'VisibilityFP' in file 'Raycasting.glsl'
> Succesfully loaded shader func 'AttributeVP' in file 'Raycasting.glsl'
> Succesfully loaded shader func 'AttributeFP' in file 'Raycasting.glsl'
> Succesfully loaded shader func 'Finalization' in file 'Finalization.glsl'
> Allocating 720 x 360 radeon RBO (pitch 720)

> 
> Program received signal SIGSEGV, Segmentation fault.
> 0x00000000 in ?? ()
> (gdb) bt
> #0  0x00000000 in ?? ()
> #1  0x0171982c in GlSplat::Shader::loadSources(char const*, char const*) ()
>    from
> /home/abbotxie/Programs/CGAL-3.6/demo/Surface_reconstruction_points_3/libgl
> _splat.so

It seems to be a crash in your radeon Mesa driver. You can try to disable the 
GlSplat rendering: comment the line "find_package(GLEW)" in CMakeLists.txt 
with a '#', and remove lines about GLEW in your CMakeCache.txt. That way GLEW 
will not be found, and the GlSplat rendering will not be compiled.

-- 
Laurent Rineau, PhD
R&D Engineer at GeometryFactory           http://www.geometryfactory.com/
Release Manager of the CGAL Project       http://www.cgal.org/