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From: frank@croton.nyo.dec.com (Frank Wortner)
Newsgroups: comp.unix.ultrix
Subject: Re: Question about dbx/f77 problem (Ultrix 4.1)
Message-ID: <1975@riscy.enet.dec.com>
Date: 20 Mar 91 13:23:32 GMT
References: <18716@milton.u.washington.edu>
Sender: newsdaemon@riscy.enet.dec.com
Reply-To: frank@croton.nyo.dec.com (Frank Wortner)
Organization: Digital Equipment Corporation
Lines: 17

In article <18716@milton.u.washington.edu>,
dittrich@milton.u.washington.edu (Dave Dittrich) writes:
 
> I have a Fortran program that is crashing on a DECstation 3100 (Ultrix
> 4.1).  Executing the program produces the following message:
> 
> 	[2]denali> r3941.
> 	r3941.: 16852 Memory fault - core dumped
> 
 
Sometimes the easiest way to track down non-specific errors like
"memory fault" in Fortran programs is to compile with array
bounds checking turned on.  That's the "-C" option to f77.  It's amazing
how many programs just stomp all over their storage.  (I've seen cases
where this is deliberate, but most often it's an error.)

				Frank