[Visualpython-users] Re: Vpython segmentation fault

[Bruce S. <bas...@un...>]

This sounds somewhat familiar. Can someone who has had experience with this
issue on Linux comment? Thanks!

I tried to post this with the attachments that Craig furnished, but it
bounced back (message too big). If you need to see those documents, you
could email him directly for copies.

Bruce Sherwood

----- Original Message -----
From: "Craig Gallek" <cg...@an...>
To: <bas...@un...>
Sent: Friday, January 31, 2003 2:28 PM
Subject: Vpython segmentation fault


>
> Hello,
>
>  I am in the Chemistry and Computer Science departments at Carnegie
> Mellon University.  We use VPython in our research lab.  I am having
> some problems with the package and I was wondering who the current
> developers of the project are.  Your name was the only e-mail address
> listed on the VPython web site.  If I am contacting the wrong person,
> please redirect me to the proper place.
>
> Up until about a week ago, VPython was working properly on our cluster.
> We just updated our Linux machines last week.  The upgrade included the
> new versions of gtk2 and gcc 3.2.  However, the old versions of gtk 1.2
> and gcc 2.95 are still on the machines as well.  Certain function in
> VPython now cause python to Segfault without displaying any
> information.  I tried recompiling the VPython library against the new
> versions of the software that we had installed and against the old
> versions, but the same thing happens.  I have attached a gdb backtrace
> and strace of a crash that occurs when the dot product function is
> called on two unit vectors.  I don't understand all of the 'file not
> found' errors in the strace.  These files are present and have the
> proper permissions set.  None of the python files were touched during
> the upgrade, so I'm a bit stumped.  Do you know of any complications
> with VPython and the new versions of gtk and gcc?
>
> Any help would be greatly appreciated.
>
> Thank you,
> Craig Gallek
>