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[netCDF #QYP-982325]: NetCDF fortran enddef crashing program

Hi Joel,

> The code I'm working on for a time-sensitive program release, so I greatly
> appreciate any and all help you can offer.
> Any thoughts on what I might be doing wrong with the netcdf library that is
> causing it to crash? Let me know if you need any additional information
> from me or if you need me to take any debugging steps.

The valgrind output you sent indicates possible problems with the calling
program, before NF90_enddef is called, and that may be the source of the 
later null pointer problem valgrind is showing.  That's about as much as
can be gleaned from valgrind output, without knowing any other information
about your platform, the version of netCDF and HDF5 used, how the library
was built, or whether you ran "make check" before installing.

My advice is to first correct the use of uninitialized variables indicated 
by valgrind, looking especially for something that might result in an
unitialized pointer or unallocated memory in the calling program.  It's
likely that the later null pointer error from the NF90_enddef call will
disappear after the earlier errors are addressed.

If you're still seeing the same problem, make sure you have run "make check"
on the netCDF Fortran library after building from source, because it tests
all the F90 functions, including NF90_enddef.  If that works OK, try to 
construct a small program that demonstrates the error you are seeing and would 
allow us to reproduce it here.  We would also need information on the versions
of libraries used and the config.log generated when the netCDF Fortran library
was built.


> address@hidden> wrote:
> >
> > Joel Scott,
> >
> > Your Ticket has been received, and a Unidata staff member will review it
> > and reply accordingly. Listed below are details of this new Ticket. Please
> > make sure the Ticket ID remains in the Subject: line on all correspondence
> > related to this Ticket.
> >
> >     Ticket ID: QYP-982325
> >     Subject: NetCDF fortran enddef crashing program
> >     Department: Support netCDF
> >     Priority: Normal
> >     Status: Open
> >
> >
> >
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Russ Rew                                         UCAR Unidata Program
address@hidden                      http://www.unidata.ucar.edu

Ticket Details
Ticket ID: QYP-982325
Department: Support netCDF
Priority: Normal
Status: Closed

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