[Visualpython-users] Linux : segmentation faults

[Lew R. <lr...@ur...>]

Hi Folks,

I'm running Fedora Core 2 (gcc version 3.3.3). I get my openGL libraries
from openmotif-2.2.3-4.1. According to my xorg.conf file, I have an "ATI
Radeon Mobility M9" video card.

I just installed Vpython-3.0, and the following demos work fine:

   convex.py
   crossproduct.py
   dipole.py
   faces_heightfield.py
   glinfo.py
   lathe.py
   texttest.py

However, any attempt to instantiate a box object leads to a segmentation 
fault with no prior error messages. I also see strange segmentation 
faults with the following demos:

   orbit.py

     ...dies via segmentation fault when either

     (a) appending a point to one of the curves. The curve to which it is
         appending (giant or dwarf) and the number of points at which it
         dies both vary.

     or

     (b) at the 'for a in [giant, dwarf]' before it executes any code in
         the block

   graphtest.py

     ...dies vie segmentation fault. Since most of the work is done in
     the C++ code, I don't know what's happening here.

   lorenz.py

     ...dies via segmentation fault apparently in the
     'for t in arrange(0,10,dt)'. Here again, the number of iterations it
     successfully completes varies. This is the most disturbing case,
     because it seems to point to problems with python itself(?).

   stars.py

     ...dies via segmentation fault. I haven't tried to track down where,
     but print statements before the various for loops inside the while
     show that it can die in different places.

Does any of this sound familiar? Any ideas?

Thanks,

Lew
-- 
___________________________________________________
Lew Riley        http://webpages.ursinus.edu/lriley
Ursinus College Department of Physics and Astronomy
(610) 409-3000 ext. 2293       (610) 409-3660 (FAX)