Mailing-List: contact cygwin-developers-help AT cygwin DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-developers-subscribe AT cygwin DOT com>
List-Archive: <http://sources.redhat.com/ml/cygwin-developers/>
List-Post: <mailto:cygwin-developers AT cygwin DOT com>
List-Help: <mailto:cygwin-developers-help AT cygwin DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender: cygwin-developers-owner AT cygwin DOT com
Delivered-To: mailing list cygwin-developers AT cygwin DOT com
Message-ID: <3D38C828.2050802@hekimian.com>
Date: Fri, 19 Jul 2002 22:17:12 -0400
X-Sybari-Trust: 6ab6699e b923d9bf 0879ee9b 00000109
From: Joe Buehler <jbuehler AT hekimian DOT com>
Reply-To: joseph DOT buehler AT spirentcom DOT com
Organization: Spirent Communications
User-Agent: Mozilla/5.0 (Windows; U; WinNT4.0; en-US; rv:1.0.0) Gecko/20020530
X-Accept-Language: en-us, en
MIME-Version: 1.0
To: cygwin-developers AT cygwin DOT com
Subject: Re: cygwin hang problem
References: <3D32FC00 DOT 5090108 AT hekimian DOT com> <20020719050925 DOT GA24259 AT redhat DOT com> <3D37F0E5 DOT 50F3669B AT yahoo DOT com> <20020719141242 DOT GB27697 AT redhat DOT com> <3D38949C DOT 3090200 AT hekimian DOT com> <20020720013040 DOT GA3445 AT redhat DOT com>
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 7bit

Christopher Faylor wrote:

> Why did you feel that you had to modify handle_exceptions to wait for
> dumper?  Since dumper is invoked as a debugger, and your backtrace
> showed that try_to_debug was invoked with waitloop == true, this code
> should have been exercised:

That was my change -- to invoke with waitloop == true.  At least in
the snapshot I am using, the code goes like this:

if (try_to_debug(0)) {
	debugging = 1;
	return 0;
}

I observed that "debugging" got quite high in value before
dumper managed to attach, and I was concerned that who knows what
had been done to the stack in the meanwhile.

I am typing this via vnc and a cable modem, so will submit
the code change for this later if you want it -- it is an easy enough change.
-- 
Joe Buehler
Principal Software Engineer
Hekimian Division
SPIRENT COMMUNICATIONS
15200 Omega Drive
Rockville, MD 20850-3240 USA
Phone: +1 301.590.3600
Fax: +1 301.590.3692
www.spirentcom.com