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From: chris@umcp-cs.UUCP (Chris Torek)
Newsgroups: net.bugs.4bsd,net.unix
Subject: Re: Problems with Ultrix dbx
Message-ID: <1935@umcp-cs.UUCP>
Date: Sun, 8-Jun-86 09:38:27 EDT
Article-I.D.: umcp-cs.1935
Posted: Sun Jun  8 09:38:27 1986
Date-Received: Mon, 9-Jun-86 03:21:18 EDT
References: <282@xios.UUCP>
Distribution: na
Organization: Computer Sci. Dept, U of Maryland, College Park, MD
Lines: 14
Xref: princeton net.bugs.4bsd:1194 net.unix:5999

In article <282@xios.UUCP>, tony@xios.UUCP (Keeper Of News) writes:
>[dbx is] getting into a state where it is not able to access local
>variables of a paticular function, ...

I cannot guess at the rest of the trouble, but this one is usually
caused by trapping a routine after a `return' instruction but before
the return has completed.  In particular, clobbering the stack will
have this effect.  Since the local variables are below the current
stack pointer, dbx thinks they are no longer available.  If you
use adb you can still find them, though this is hardly convenient.
-- 
In-Real-Life: Chris Torek, Univ of MD Comp Sci Dept (+1 301 454 1516)
UUCP:	seismo!umcp-cs!chris
CSNet:	chris@umcp-cs		ARPA:	chris@mimsy.umd.edu