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



Hi Samuel-

> Just as another comment, I have a technical support call into Red Hat as 
> well, since I'm thinking this is an Xvfb problem, but I thought I'd send a 
> shout your way as well.

Okay.  I just gave them access to the version you are using.

Can you try installing the other Linux version which has an updated
Java 3D version and see if that works?

Don

> -----Original Message-----
> From: Zehel, Samuel
> Sent: Friday, July 11, 2008 4:01 PM
> To: Zehel, Samuel; 'address@hidden'
> Subject: RE: [IDV #RRP-441625]: Strange IDV/Xvfb behavior
> 
> Just as a comment:
> I don't think it's the video-card configuration, since I can run this .ISL 
> script with no problem from the console of the HP ML370 machine.   The HP 
> ML370 machine is the one that can't run the IDV .ISL script in Xvfb (which 
> should be hardware independent anyway)
> 
> -----Original Message-----
> From: Zehel, Samuel
> Sent: Friday, July 11, 2008 3:59 PM
> To: 'address@hidden'
> Subject: RE: [IDV #RRP-441625]: Strange IDV/Xvfb behavior
> 
> Both machines don't have the same card (I don't think so anyway), the RHEL5 
> machine is running on an HP ML370 with a stock video card(Integrated ATI 
> ES1000, 32 MB video standard), and the RHEL3 machine is running on a DELL 
> platform, with a stock video card(Integrated ATI-Rage XL controller with 8MB 
> of SDRAM (not upgradable).  I thought the whole point of Java was to make 
> graphics rendering platform (video card) independent.
> They are running the same version of IDV (2.5)
> They are running the same version of Java (1.5.0_11)
> They are running the same version of Java3D (1.3.1)
> 
> -----Original Message-----
> From: Unidata IDV Support [mailto:address@hidden]
> Sent: Friday, July 11, 2008 3:45 PM
> To: Zehel, Samuel
> Cc: address@hidden
> Subject: [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
> 
> 


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