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[GEMPAK #LCX-442413]: GARP crash

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  • Subject: [GEMPAK #LCX-442413]: GARP crash
  • Date: Wed, 08 Sep 2010 17:01:34 -0600
Hi Frank,

Unfortunately the logs don't provide any clues as to why Garp is seg faulting.  
As it stands Garp isn't very well supported - the code is quite old and tends 
to be buggy on certain systems - so we generally recommend users try NMAP2 for 
satellite/surface/model grid display as it's better supported and has nearly 
all the functionality of Garp.  Is there a particular reason you require Garp 
instead of NMAP2?

If Garp is required, the only thing I can recommend is to enable unlimited core 
dump sizes:

> limit coredumpsize unlimited

and then run Garp once again, allow it to seg fault, then invoke the GNU 
debugger:

> gdb $OS_BIN/garp core.###

where ### is the process ID # appended to the end of the core dump file.

in gdb issue the command "where" and you should see the stack trace where the 
seg fault occurred - that is is debugging symbols are enabled on your build.  
try this and let me know if it provides you with more information.  If not we 
may need to rebuild Garp with dubugging enabled, but I would strongly encourage 
you to try out NMAP2 for data display you're trying to accomplish with Garp.

Michael James
Unidata


> Michael:
> 
> I ran GARP in command mode and saved the output into an appropriately
> named log file for the model and surface data problems that I am getting.
> Namely,...when I try to plot surface data, GARP crashes immediately.
> For model data, I have no problem plotting any data from GFS, UKMET, etc.,
> but NAM crashes. When trying to create model plan projection images, I
> can select times and general scalar variables for NAM, but it crashes
> as soon as I hit "display".  If I reopen GARP, select the GFS tab under
> model plan projection, then (without trying to plot anything) immediately
> switch back to NAM...I have a different list of scalar variables AND NAM
> plots just fine!
> 
> I have cc'd our Linux wiz who can tell you which OpenMotif version we
> are using.
> 
> I have to run to teach my class, but will check back in later this
> afternoon.
> 
> Thanks for helping with this!!!
> 
> peace,
> Frank
> 

Ticket Details
===================
Ticket ID: LCX-442413
Department: Support GEMPAK
Priority: Normal
Status: Open