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From: stephen@dcl-cs.UUCP (Stephen J. Muir)
Newsgroups: net.unix-wizards
Subject: Re: ptrace child after fork?
Message-ID: <809@dcl-cs.UUCP>
Date: Fri, 22-Nov-85 18:17:52 EST
Article-I.D.: dcl-cs.809
Posted: Fri Nov 22 18:17:52 1985
Date-Received: Mon, 25-Nov-85 06:51:33 EST
References: <755@rtech.UUCP>
Reply-To: stephen@comp.lancs.ac.uk (Stephen J. Muir)
Distribution: net
Organization: Department of Computing at Lancaster University.
Lines: 16

In article <755@rtech.UUCP> daveb@rtech.UUCP (Dave Brower) writes:
>So, the question is, should fork propagate ptrace?

I should say not.  How often is the process you're debugging another debugger?
Even if it was, it would get its child to do its own ptrace.

Suppose you wish to debug a process that forks other processes.  Now, the
process being debugged will do a wait(2).  If its child has stopped as a result
of the ptrace, then the "wait" will return something unexpected and the process
being debugged will get confused.  Think about it.
-- 
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