[vtkusers] Segmentation Fault

Tue Jan 14 11:46:50 EST 2003

Hi Dingrong,

Checking 'which vtk' isn't enough, you also need to make
sure that the vtk executable is using the right .so files.
To do that, do
  ldd /data/VTK/bin/vtk  <works on Linux only>
and make sure that all the VTK .so files are being loaded
from the correct location.  If not, then add /data/VTK/bin
to the LD_LIBRARY_PATH

Also, a big warning about using python-VTK on redhat-7.x:
Most redhat 7.x distributions have python2.1 or python2.2
as well as python1.5.  Sometimes CMake gets either
the python header files or the python library from the
2.x version instead of from 1.5.  Load your CMakeCache.txt
into a text editor and make sure that all references to
PYTHON refer to the 1.5 version of python (or conversely,
make sure they all refer to python2.x and then use python2
to run your scripts).  Changing from one version of python
to another will require a clean re-build of VTK.

 - David
-- 
  David Gobbi, MSc                dgobbi at imaging.robarts.ca
  Advanced Imaging Research Group
  Robarts Research Institute, University of Western Ontario

On Tue, 14 Jan 2003, Dingrong Yi wrote:

> Hi David,
> Thank you for your reply. Please continue reading.
>
> On Tue, 14 Jan 2003, David Gobbi wrote:
>
> > Hi Dingrong,
> >
> > The segmentation fault might be a result of having different
> > copies of VTK on your system, for example on Windows if you
> > have DLLs sitting around from an old build, this can cause
> > real problems.
> >
> > Check your PATH (or under UNIX your LD_LIBRARY_PATH) to make
> > sure that it points to only one copy of your VTK DLLs/.so files.
>
> I am using linux. When check with which vtk, I get
> /data/VTK/bin/vtk
>
> Does not this enough telling me that PATH setting alright?
>
>
> >
> > Also, in future emails related to build problems please quote more
> > information about your system.  In particular you should defintely
> > give
> > 1) your platform (Windows, Linux, IRIX)
> Linux
>
>
> > 2) your compiler
> I have installed
> CMake1.4.6-x86-linux-static.tar.gz
> but when I rpm -q gcc I get
> gcc-2.96-110
>
> > 3) which versions of python and tcl you use
> python-1.5.2-38
>
> > 4) what CMake variables you have changed (e.g. for python
> >    builds you should BUILD_SHARED_LIBS on)
>  BUILD_EXAMPLES                   ON
>  BUILD_SHARED_LIBS                ON
>  BUILD_TESTING                    ON
>  CMAKE_CXX_FLAGS
>  CMAKE_C_FLAGS
>  CMAKE_INSTALL_PREFIX             /usr/local
>  DART_ROOT                        NOTFOUND
>  PYTHON_INCLUDE_PATH              /usr/include/python1.5
>  PYTHON_LIBRARY                   /usr/lib/python1.5/config/libpython1.5.a
>  TCL_INCLUDE_PATH                 /usr/include
>  TCL_LIBRARY                      /usr/lib/libtcl.so
>  TCL_LIBRARY_DEBUG                NOTFOUND
>  TCL_STUB_LIBRARY                 /usr/lib/libtclstub.a
>  TCL_STUB_LIBRARY_DEBUG           NOTFOUND
>  TCL_TCLSH                        /usr/bin/tclsh
>  TK_INCLUDE_PATH                  /usr/include
>  TK_LIBRARY                       /usr/lib/libtk.so
>  TK_LIBRARY_DEBUG                 NOTFOUND
>  TK_STUB_LIBRARY                  /usr/lib/libtkstub.a
>  TK_STUB_LIBRARY_DEBUG            NOTFOUND
>  TK_WISH                          /usr/bin/wish
>  VTK_DATA_ROOT                    /data/VTK
>  VTK_USE_ANSI_STDLIB              OFF
>  VTK_USE_HYBRID                   OFF
>  VTK_USE_PARALLEL                 OFF
>  VTK_USE_PATENTED                 ON
>  VTK_USE_RENDERING                ON
>  VTK_USE_VOLUMEPRO                OFF
>  VTK_WRAP_JAVA                    OFF
>  VTK_WRAP_PYTHON                  ON
>  VTK_WRAP_TCL                     ON
>
>
> > 5) anything else you think might be relevant
>
> When I installed Python & VTK4.n, I once forced installing
> Mesa-3.4-10.i386.rpm to upgrade a previous version. I followed
> the procedures "Installing Python & VTK  Linux RedHat 7.x"
> (found at http://www.imaging.robarts.ca/coders/)
> though my version is newer than 7.x.
>
> Thank you David.
>
>
> >
> > Cheers,
> >   David
> >
> > --
> >   David Gobbi, MSc                dgobbi at imaging.robarts.ca
> >   Advanced Imaging Research Group
> >   Robarts Research Institute, University of Western Ontario
> >
> > On Tue, 14 Jan 2003, Dingrong Yi wrote:
> >
> > > Dear VTK Users,
> > >
> > > I used to work on VTK (2.4) and  I upgraded to VTK4.0
> > > successfully. However, just before christmas, I upgraded further
> > >  to a nighly released version (in order to use some great
> > > python classes) which gave me  segmentation error whenever I run
> > >  a VTK example. When installed VTK4.n, I also installed some
> > > packages that for Python. Python worked, but VTK4.n  did not.
> > > What is worse  is that now I am NOT able to
> > > get VTK4.0 running. I can compile the sources successfully and
> > > have the library files in VTK/bin, but whenever I run the
> > > example files or  my own working code, both will give me
> > > segmentation  error.
> > >
> > > Is any one have similar experience or can  give me some
> > > suggestions?
> > >
> > > Thanks
> > >
> > > Dingrong
> > >
> > >
> > >
> > >
> > >
> > > _______________________________________________
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> > >
> >
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>