Unable to access core file until terminate process?

[Craig Rodrigues]

Hi,

I am using:

gdb --version
GNU gdb 5.0

gcc -v
gcc version 2.95.2 19991024 (release)

I have a program which dies with a SIGSEGV (signal 11)
and generates a core file.

When I try to debug this:

gdb myprog core

I get a warning from gdb:
=========================================================================
Core was generated by myprog.
Program terminated with signal 11, Segmentation fault.
 
warning: you won't be able to access this core file until you terminate
your multi-threaded child process.; do ``info files''
=========================================================================

What does this error message mean, and how do I debug this
program?  Doing "info files" displays some information about
the core file, but does not allow me to proceed any further.

Thanks for any help.
-- 
Craig Rodrigues        
http://www.gis.net/~craigr    
rodrigc@mediaone.net