Error from dbx

[Joe Fulson-Woytek]

I am trying to debug a large Fortran program. The program
ran but the results appeared to indicate a variable was
being changed when I wasn't expecting it to be. I thought it was a 
good opportunity to learn edge/dbx. So I recompiled all the source
with -O0 (for no optimization) and -g (for symbols). I then started dbx
and got the following message:
warning: aux(17) greater than max(16) for file 111
I then got a core dump. If anyone can point me to a meaning for
this message, I would greatly appreciate it. 

Joe Fulson-Woytek