alette@valette-desktop:~/CVSROOT/vtkSurface$ pgrep MAT
17781
valette@valette-desktop:~/CVSROOT/vtkSurface$ sudo gedit /etc/X11/xorg.conf
valette@valette-desktop:~/CVSROOT/vtkSurface$ gdb /home/valette/CVSROOT/vtkSurface/bin/MAT 
GNU gdb 6.6-debian
Copyright (C) 2006 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "i486-linux-gnu"...
Using host libthread_db library "/lib/tls/i686/cmov/libthread_db.so.1".
(gdb) attach 17781
Attaching to program: /home/valette/CVSROOT/vtkSurface/bin/MAT, process 17781
Reading symbols from /home/valette/CVSROOT/vtkSurface/bin/libvtkSurface.so...done.
Loaded symbols for /home/valette/CVSROOT/vtkSurface/bin/libvtkSurface.so
Reading symbols from /home/valette/CVSROOT/vtkSurface/bin/libvtkVolumeMeshing.so...done.
Loaded symbols for /home/valette/CVSROOT/vtkSurface/bin/libvtkVolumeMeshing.so
Reading symbols from /usr/lib/libvtkCommon.so.5.0...done.
Loaded symbols for /usr/sbin/../lib/libvtkCommon.so.5.0
Reading symbols from /usr/lib/libvtkFiltering.so.5.0...done.
Loaded symbols for /usr/sbin/../lib/libvtkFiltering.so.5.0
Reading symbols from /usr/lib/libvtkGraphics.so.5.0...done.
Loaded symbols for /usr/sbin/../lib/libvtkGraphics.so.5.0
Reading symbols from /usr/lib/libvtkImaging.so.5.0...done.
Loaded symbols for /usr/sbin/../lib/libvtkImaging.so.5.0
Reading symbols from /usr/lib/libvtkIO.so.5.0...done.
Loaded symbols for /usr/sbin/../lib/libvtkIO.so.5.0
Reading symbols from /usr/lib/libvtkRendering.so.5.0...done.
Loaded symbols for /usr/sbin/../lib/libvtkRendering.so.5.0
Reading symbols from /usr/lib/libvtkWidgets.so.5.0...done.
Loaded symbols for /usr/sbin/../lib/libvtkWidgets.so.5.0
Reading symbols from /usr/lib/libvtkHybrid.so.5.0...done.
Loaded symbols for /usr/sbin/../lib/libvtkHybrid.so.5.0
Reading symbols from /usr/lib/libvtkftgl.so.5.0...done.
Loaded symbols for /usr/sbin/../lib/libvtkftgl.so.5.0
Reading symbols from /usr/lib/libfreetype.so.6...done.
Loaded symbols for /usr/sbin/../lib/libfreetype.so.6
Reading symbols from /usr/lib/libGL.so.1...Reading symbols from /usr/lib/debug/usr/lib/libGL.so.1.2...done.
done.
Loaded symbols for /usr/sbin/../lib/libGL.so.1
Reading symbols from /usr/lib/libXt.so.6...done.
Loaded symbols for /usr/sbin/../lib/libXt.so.6
Reading symbols from /usr/lib/libSM.so.6...done.
Loaded symbols for /usr/sbin/../lib/libSM.so.6
Reading symbols from /usr/lib/libICE.so.6...done.
Loaded symbols for /usr/sbin/../lib/libICE.so.6
Reading symbols from /usr/lib/libX11.so.6...done.
Loaded symbols for /usr/sbin/../lib/libX11.so.6
Reading symbols from /usr/lib/libXext.so.6...done.
Loaded symbols for /usr/sbin/../lib/libXext.so.6
Reading symbols from /usr/lib/libvtksys.so.5.0...done.
Loaded symbols for /usr/sbin/../lib/libvtksys.so.5.0
Reading symbols from /lib/tls/i686/cmov/libpthread.so.0...done.
[Thread debugging using libthread_db enabled]
[New Thread -1238820128 (LWP 17781)]
Loaded symbols for /lib/tls/i686/cmov/libpthread.so.0
Reading symbols from /lib/tls/i686/cmov/libdl.so.2...done.
Loaded symbols for /lib/tls/i686/cmov/libdl.so.2
Reading symbols from /usr/lib/libvtkDICOMParser.so.5.0...done.
Loaded symbols for /usr/sbin/../lib/libvtkDICOMParser.so.5.0
Reading symbols from /usr/lib/libpng12.so.0...done.
Loaded symbols for /usr/sbin/../lib/libpng12.so.0
Reading symbols from /usr/lib/libz.so.1...done.
Loaded symbols for /usr/sbin/../lib/libz.so.1
Reading symbols from /usr/lib/libjpeg.so.62...done.
Loaded symbols for /usr/sbin/../lib/libjpeg.so.62
Reading symbols from /usr/lib/libtiff.so.4...done.
Loaded symbols for /usr/sbin/../lib/libtiff.so.4
Reading symbols from /usr/lib/libexpat.so.1...done.
Loaded symbols for /usr/sbin/../lib/libexpat.so.1
Reading symbols from /usr/lib/libvtkexoIIc.so.5.0...done.
Loaded symbols for /usr/sbin/../lib/libvtkexoIIc.so.5.0
Reading symbols from /usr/lib/libvtkNetCDF.so.5.0...done.
Loaded symbols for /usr/sbin/../lib/libvtkNetCDF.so.5.0
Reading symbols from /usr/lib/libstdc++.so.6...done.
Loaded symbols for /usr/sbin/../lib/libstdc++.so.6
Reading symbols from /lib/tls/i686/cmov/libm.so.6...done.
Loaded symbols for /lib/tls/i686/cmov/libm.so.6
Reading symbols from /lib/libgcc_s.so.1...done.
Loaded symbols for /lib/libgcc_s.so.1
Reading symbols from /lib/tls/i686/cmov/libc.so.6...done.
Loaded symbols for /lib/tls/i686/cmov/libc.so.6
Reading symbols from /usr/lib/libXxf86vm.so.1...done.
Loaded symbols for /usr/sbin/../lib/libXxf86vm.so.1
Reading symbols from /usr/lib/libXdamage.so.1...done.
Loaded symbols for /usr/sbin/../lib/libXdamage.so.1
Reading symbols from /usr/lib/libXfixes.so.3...done.
Loaded symbols for /usr/sbin/../lib/libXfixes.so.3
Reading symbols from /usr/lib/libdrm.so.2...done.
Loaded symbols for /usr/sbin/../lib/libdrm.so.2
Reading symbols from /usr/lib/libXau.so.6...done.
Loaded symbols for /usr/sbin/../lib/libXau.so.6
Reading symbols from /usr/lib/libXdmcp.so.6...done.
Loaded symbols for /usr/sbin/../lib/libXdmcp.so.6
Reading symbols from /lib/ld-linux.so.2...done.
Loaded symbols for /lib/ld-linux.so.2
Reading symbols from /usr/lib/dri/r300_dri.so...done.
Loaded symbols for /usr/lib/dri/r300_dri.so
0xffffe410 in __kernel_vsyscall ()
(gdb) cont
Continuing.

Program exited with code 0377.