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[IDV #RRP-441625]: Strange IDV/Xvfb behavior

Hi Samuel-

> I've recently installed a RHEL5 system, and copied all of our .ISL scripts 
> from a RHEL3 machine, to run them on our RHEL5 machine.
> 
> For some strange reason, the .ISL scripts terminate IDV if I run them in an 
> Xvfb session, and the Xvfb session dies in Segmentation fault.
> 
> The exact same script works fine in Xvfb on our RHEL3 machine, and the script 
> even works fine if run from the console of our RHEL5 machine, but for some 
> strange reason the script doesn't run correctly on our new machine thru Xvfb.
> 
> I'm at a loss as to why Xvfb goes into Segment fault.  I've tried every 
> combination of resolution/depth I could think of, but they all seem to 
> segment fault the Xvfb server.
> 
> I tried the most suggested resolution&depth (1280x1024x24), and ran the .ISL 
> script from another terminal.  Using xwud, I can see that IDV starts, and 
> creates the image properly, but it seems to crash when it tries to write the 
> output to a .PNG file.
> 
> IDV reports no error, only Xvfb dies on a Segmentation fault.
> 
> I can run other Xwindows applications (albeit simple) like xeyes, with no 
> problem on Xvfb.
> 
> Samuel M. Zehel Jnr

I suspect there is some issue between Java 3D and Xvfb.

Do both systems have the same graphics card?  If so, what is that?

Are they both running the same version of IDV?  In particular, 
are they both running the same version of Java 3D?  You
can check through the Help->About... menu and clicking on
the System tab in the dialog.  It will show what version of
Java and Java 3D you are running.

We don't have Xvfb set up here, so we'll have to get that
set up and run some tests.  In the meantime, please let
me know the answers to the questions above.

Don Murray



Ticket Details
===================
Ticket ID: RRP-441625
Department: Support IDV
Priority: Normal
Status: Open