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: Wed, 15 Oct 2003 15:20:16 -0400
From: Christopher Faylor <cgf-rcm AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: setup hangs during postinstall
Message-ID: <20031015192016.GA7725@redhat.com>
Reply-To: cygwin AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
References: <D721826DEE793D49BC49582C121EDD3E3F55C9 AT exchange DOT perwill DOT com> <20031015184121 DOT GC28402 AT redhat DOT com> <Pine DOT GSO DOT 4 DOT 56 DOT 0310151353340 DOT 823 AT eos> <Pine DOT GSO DOT 4 DOT 56 DOT 0310151504260 DOT 20462 AT slinky DOT cs DOT nyu DOT edu>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <Pine.GSO.4.56.0310151504260.20462@slinky.cs.nyu.edu>
User-Agent: Mutt/1.4.1i

On Wed, Oct 15, 2003 at 03:10:36PM -0400, Igor Pechtchanski wrote:
>On Wed, 15 Oct 2003, Brian Ford wrote:
>
>> On Wed, 15 Oct 2003, Christopher Faylor wrote:
>>
>> > On Wed, Oct 15, 2003 at 07:24:53PM +0100, Steve Fairbairn wrote:
>> > >As Brian has noted, Executing the binary with '< /dev/null' stops the
>> > >hanging, but also executing it without capturing the output to a variable
>> > >also stops the hanging.
>> >
>> > I would guess that something like
>> >
>> > foo=`bar`
>> >
>> > is what is causing the problem because this uses a pipe for
>> > communication.  In a shell that is run from setup.exe, it is possible
>> > that stdin is not opened at all and stdout is the pipe in question.
>> > Maybe this is somehow confusing the SHF* function.
>>
>> Yes.  I thought this had always been clear.
>
>I'd say it's confusing the DLL initialization sequence, as the function
>doesn't even have to be called (see the simple hanging example in this
>thread).
>
>> Since this only happens in bash, and not in sh, I doubt that is the
>> problem.  Are we looking at some kind of weird bash bug here?  We have
>> almost eliminated most of Cygwin since MINGW SHLWAPI executables exhibit
>> the problem.
>
>Speaking of which, what's the version of SHLWAPI that hangs?  On my
>machine (which doesn't exhibit the hang) I have
>
>$ ls -l shlwapi.dll msvcrt.dll
>-rwxrwxr-x+   1 Administ SYSTEM     300816 Oct 20  2000 shlwapi.dll
>-rwxrwxr-x+   1 Administ SYSTEM     290869 Oct 30  2001 msvcrt.dll
>
>The properties dialogs show the following versions:
>
>File version: 5.50.4522.1800
>Description: Shell Light-weight Utility Library
>Copyright: Copyright (C) Microsoft Corp. 1981-2000
>
>File version: 6.1.9359.0
>Description: Microsoft (R) C Runtime Library
>Copyright: Copyright (C) Microsoft Corp. 1981-1999

-rwxrwxr-x+   1 Administ SYSTEM     395264 Jul 13 16:05 shlwapi.dll
Version 6.00.2800.1226

-rwxrwxr-x+   1 Administ SYSTEM     286773 Jun 19 12:05 msvcrt.dll
Version 6.00.2800.1226

Both are on a recently-updated Windows 2000 system.  I can't duplicate
the described problem.

cgf

--
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/