Once you have captured the core file, you can view its contents by using
gdb, the GNU Debugger. To record a script session of
gdb on the core file from the affected system, run the following:
$ script /tmp/gdb-rgmanager.txt
$ gdb /usr/sbin/rgmanager /tmp/rgmanager-.core.
This will start a
gdb session, while
script records it to the appropriate text file. While in
gdb, run the following commands:
(gdb) thread apply all bt full
ctrl-D to stop the script session and save it to the text file.