X-Recipient: archive-cygwin AT delorie DOT com
X-Spam-Check-By: sourceware.org
Date: Sat, 12 Feb 2011 19:12:24 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: Preremove/postinstall scripts fail with snapshot installed
Message-ID: <20110212181224.GC3264@calimero.vinschen.de>
Reply-To: cygwin AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
References: <4D55A88E DOT 3090301 AT cornell DOT edu> <20110212142555 DOT GB5682 AT calimero DOT vinschen DOT de> <4D56A002 DOT 2090707 AT cornell DOT edu> <4D56A7D5 DOT 6010104 AT cornell DOT edu> <20110212164415 DOT GB3264 AT calimero DOT vinschen DOT de>
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
In-Reply-To: <20110212164415.GB3264@calimero.vinschen.de>
User-Agent: Mutt/1.5.21 (2010-09-15)
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
Precedence: bulk
List-Id: <cygwin.cygwin.com>
List-Unsubscribe: <mailto:cygwin-unsubscribe-archive-cygwin=delorie DOT com AT cygwin DOT com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/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

On Feb 12 17:44, Corinna Vinschen wrote:
> On Feb 12 10:31, Ken Brown wrote:
> > I just did a system restore to undo the last round of Windows
> > updates, and the problem went away.  I'm not sure where to go from
> > here.
> 
> You're right, I can reproduce it on W7 32 and 64 bit.
> [...]
> So this problem occurs on Windows 7 and perhaps Vista only with recent
> Cygwin snapshots or current CVS, only with the latest security updates
> installed and, for some reason, only when calling postinstall scripts
> from setup.exe.  Calling the same scripts from an interactive bash works
> fine.
> 
> The 2010-10-18 snapshot is the snapshot which reintroduced the ability
> to remove in-use directories by accessing an undocumented structure in
> Vista/Windows 7.  Looks like MSFT had to change something which breaks
> an application using this structure in a very specifc scenario, which is
> unfortunately exposed by running bash from setup.exe :-(
> 
> By installing the security updates again, one by one, I figure out
> that it is the security update connected to KB 2393802 which triggers
> the problem.
> 
> But, be it as it is, it doesn't make sense to ask people not to install
> the security updates, so I fear it's "back to the drawing board" for
> Cygwin.  Sigh.

Just FYI, I have a working workaround.  It's not exactly how I would
like to handle this stuff, but at least we know there *is* a solution
which still maintains the desired ability to delete an in-use directory.

Stay tuned.


Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Project Co-Leader          cygwin AT cygwin DOT com
Red Hat

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