Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sources.redhat.com/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
Date: Mon, 16 Feb 2004 17:39:57 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Known feature?
Message-ID: <20040216163957.GN18953@cygbert.vinschen.de>
Reply-To: cygwin AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
References: <402FFCB8 DOT 5030807 AT tlinx DOT org> <20040216124105 DOT GE18953 AT cygbert DOT vinschen DOT de> <4030DBAD DOT 9030308 AT att DOT net> <20040216161330 DOT GM18953 AT cygbert DOT vinschen DOT de>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20040216161330.GM18953@cygbert.vinschen.de>
User-Agent: Mutt/1.4.2i

On Feb 16 17:13, Corinna Vinschen wrote:
> On Feb 16 10:03, David Fritz wrote:
> > Corinna Vinschen wrote:
> > >On Feb 15 15:11, linda w wrote:
> > >
> > >>I decided to trace a 3 day long running process (the dd/bzip program) 
> > >>that was
> > >>nearing completion (had a couple hundred meg to go), and much to my 
> > >>chagrin,
> > >>when I wanted to stop tracing, I pressed control-c -- and unlike the 
> > >>behavior I'm
> > >>used to in linux, it didn't just terminate the process being traced, but 
> > >>also
> > >>terminated the program that had been attached to!
> > >>
> > >>Very very much of a bummer, since it takes 3+ days, apparently, to run 
> > >>and come near
> > >>to completing this test.  Very, very sad....oh well...
> > >>
> > >>Is this a "feature" or a "bug"?
> > >
> > >It's Windows.
> > 
> > Indeed it is.  Though I'd note that Windows XP and later allow debuggers to
> > detach from a process without killing it. (DebugActiveProcessStop(),
> > DebugSetProcessKillOnExit()).
> 
> Indeed, it's already implemented in GDB.

Btw., you already can have a similar behaviour with strace.  At least
on XP, I didn't check on earlier versions.

If you start the process in one window and attach with strace from
another window, then, when you break strace, it won't stop the child.

Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Developer                                mailto:cygwin AT cygwin DOT com
Red Hat, Inc.

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/