X-Recipient: archive-cygwin AT delorie DOT com
DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:from:to:subject:date:message-id:content-type
	:content-transfer-encoding:mime-version; q=dns; s=default; b=yUN
	qsWOzg5Dt5iknJdc5QjFHE6e6XwdSmjHPH3rnbgK4c+XuS7avkmmkDFeEV4MwGKI
	suHrZBUvJjdv1WecstnHmHCUxvhGTRFnwU3Udrx1L4/zk7Twk5UBeUwe5XqdedzR
	hYoNtnTpVSFX8KAWBoQAbKtRyavyjT3+V+Si9dSM=
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:from:to:subject:date:message-id:content-type
	:content-transfer-encoding:mime-version; s=default; bh=85EjJ9OOj
	6rMekqCJFnz32fnzsc=; b=o7mdA8MZ1Wruw1VlrzbRSeOv7ixELWEZPeIm7iWwI
	Tpa0k0onoJZ/h2A1bHIhrU4wpW6kowkxQW/KvLaJ7ksckI8bigCuCKgj9n0v4Kmf
	v6RJ+DOSoRjmDys6e5PYLfIGdtGEJNbs91MKOB/SK89cD6cuL9eintwPv6+6U+Bh
	AM=
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.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
Authentication-Results: sourceware.org; auth=none
X-Virus-Found: No
X-Spam-SWARE-Status: No, score=0.8 required=5.0 tests=AWL,BAYES_00,UNSUBSCRIBE_BODY autolearn=no version=3.3.2
X-HELO: USA7109MR004.ACS-INC.COM
From: "Nellis, Kenneth" <Kenneth DOT Nellis AT xerox DOT com>
To: "cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Subject: can't share fifo between 32-bit and 64-bit Cygwins
Date: Mon, 30 Jun 2014 18:04:45 +0000
Message-ID: <0D835E9B9CD07F40A48423F80D3B5A702E7D8967@USA7109MB022.na.xerox.net>
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
X-MIME-Autoconverted: from quoted-printable to 8bit by delorie.com id s5UI561L027487

Just thought I'd share an observation I found interesting.
Not a problem for me, so not asking for any particular response.

If I create a named pipe (mkfifo), as long as I write to and read from using
either 32-bit Cygwin or 64-bit Cygwin, all works fine, but if I write with either
one and read with the other, both processes hang.

It doesn't seem to matter whether the fifo was created under 32-bit or
64-bit, the problem (if I may be so bold as to call it that) seems only with
mixing 32-/64-bit versions doing I/O to/from it.

FWIW, using 32-bit version 1.7.29-2 and 64-bit version 1.7.30-1.

-Ken Nellis

--
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