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:references
	:in-reply-to:content-type:content-id:content-transfer-encoding
	:mime-version; q=dns; s=default; b=Jm4eTIho3bgyccnTD5fwwXIsiGbFj
	qdMe5IURkgqKt6HkOL0eVqwCh84OFilC8aBTo+Pb969QZAvlSPer23Uve4nG5l1b
	hEYuIRaYSXCuxVm0CwNgWNOiqmj6EQ9ssCnv9MF3Vu7VGK3AEHeKTUyXaCCWyxba
	syERXZzizCczQw=
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:references
	:in-reply-to:content-type:content-id:content-transfer-encoding
	:mime-version; s=default; bh=gJTwQnaC8j7p+VX094m7sUwyYzE=; b=D1N
	xEURR3me0of0ar+zB6c9jmi9ajnK/FfEEeau9pvse+BvHwptA1QPiqacR1+uLQoU
	uF+4mMB1O+2UfgEx7GfiFQGje2B6mgMw0ihVbaxtxoF5wwAlVuVfxZPvuBdnwr5S
	8TLSVGOzxZv98ytoM070dSDDQL9S9PWuSyr7U3Pw=
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-Spam-SWARE-Status:	No, score=-7.2 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_NONE,SPF_HELO_PASS,SPF_PASS autolearn=ham version=3.3.1 spammy=connection, HX-Languages-Length:670
X-HELO:	NAM03-BY2-obe.outbound.protection.outlook.com
ARC-Seal:	i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=mFseT3gPI+ztwlfFlANrrZcnlo0sf+ADg/7oIU/Zwf2UPEUH+DaaASzjfA35//KK8HG3P+l7IsdhomPzOznouv/7GnoF6bTNurvF9DxdWVqrUbeHpOuqFRZiQCclCVDex2ivI2P9Fbrw0QoktGVKvgxG/t5l7JgHqo+HeReRMsJAE4H+7t2+gX+QbcBRboizhy8dWOpBiAgNE3xHFzP157iNLagUZH2huwGNp9mQMUuO2xxl7LV+/scvGkcONW8zKPNznr3tBpOWd7GFOzzuqWTaTAtmtIowq+4aWjSepil+Kyt9hdmFIa9JB52l4EnOxpc5zrP9ruCyRH0GPlnDvw==
ARC-Message-Signature:	i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=dRUjIoI1nNYQRTBe9rFydZ0obo8h0IduTs9bjeqmbJE=; b=D0GxdpS04WfceJ5Zo/iij2eRS1Xa6FIO2hcGoyayLJVFf8kPvHPL7XYXwuTpscWx3tQYkQxC6PAXZPnJderdqe9/UPARLJ9hzln2a4UGVOmImtmP18E14MRmU3IB0JJfJmMGm9jVOz1yoHmXlhJhch7CcidnX2/v6Y7WNKuZKr6LISRDHlc3xB1PhuuXFj7ycw1LlH3uhYxwj4eOl/GtU7tuQUQNzNNk6yGxuER79ghQwpXxLAWUKDXqNzYqKqnHlfz7plwy9rd7PeXR4isGL2YlPGDgYlf9uWLZvE0PA702S+YSjqYBJ1q1Z6m4AEw4KNqr9uJgvRvn6iAD4Xa/dA==
ARC-Authentication-Results:	i=1; mx.microsoft.com 1;spf=pass smtp.mailfrom=cornell.edu;dmarc=pass action=none header.from=cornell.edu;dkim=pass header.d=cornell.edu;arc=none
DKIM-Signature:	v=1; a=rsa-sha256; c=relaxed/relaxed; d=cornell.edu; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=dRUjIoI1nNYQRTBe9rFydZ0obo8h0IduTs9bjeqmbJE=; b=URQUN6obSOlJ1miQ8qhpuGTfrdK1mBPEFaTCPm4TpOs6AjqTs9rs0ZYlsg5nZs82Wv5WmJlecJIJ2Gq9jZUyfIcuG33Qjm2kn6o3pXqnIEzT9kI4SvcItwx7H8wnZ0qhAeZx3pU5gMdGIEPvvP0gWVojaPB4+7RtS+e9oRHmJcE=
From:	Ken Brown <kbrown AT cornell DOT edu>
To:	"cygwin AT cygwin DOT com" <cygwin AT cygwin DOT com>
Subject:	Re: Regression (last snapshot)
Date:	Sat, 3 Aug 2019 13:14:03 +0000
Message-ID:	<7851c2e6-7e83-1f50-f22f-1346b20c4130@cornell.edu>
References:	<20190729134700 DOT GO11632 AT calimero DOT vinschen DOT de> <ced2750a-0a52-1396-b6c1-f4228116bde7 AT cornell DOT edu> <20190729152327 DOT GQ11632 AT calimero DOT vinschen DOT de> <20190729154049 DOT GR11632 AT calimero DOT vinschen DOT de> <c5d01965-80b9-cece-54d2-f7462f84c0a2 AT cornell DOT edu> <8e57d4da-722d-1b9a-bd28-5f96ed182f6a AT cornell DOT edu> <0a09679b-1a0f-613b-04c8-1a63da8a00c2 AT cornell DOT edu> <33aead20-540c-ee3b-0d38-ff053fbac040 AT dronecode DOT org DOT uk> <12269538-c387-1f1e-ab5a-b36b60d09937 AT cornell DOT edu> <a61264b5-80da-52fc-7093-8e8d9a8ace33 AT redhat DOT com> <20190801160440 DOT GC11632 AT calimero DOT vinschen DOT de> <19e73527-cb9a-a106-a57a-2895b8a520c9 AT cornell DOT edu> <e922144a-1f02-9398-4223-dbf76c69231f AT cornell DOT edu> <b4d57d88-3ec4-939f-c591-e50aaef607f3 AT cornell DOT edu> <5f4a0400-a173-1948-6048-69ba54df2571 AT SystematicSw DOT ab DOT ca> <400eebe3-3ba9-5448-85a8-92e6e0dfdf0c AT cornell DOT edu> <1d2c03d5-8534-405e-b150-c899508712fc AT redhat DOT com> <93bdffad-7a57-415d-c7db-94c17acb417e AT SystematicSw DOT ab DOT ca>
In-Reply-To:	<93bdffad-7a57-415d-c7db-94c17acb417e@SystematicSw.ab.ca>
user-agent:	Mozilla/5.0 (Windows NT 10.0; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0
authentication-results:	spf=none (sender IP is ) smtp.mailfrom=kbrown AT cornell DOT edu;
x-ms-oob-tlc-oobclassifiers:	OLM:7219;
received-spf:	None (protection.outlook.com: cornell.edu does not designate permitted sender hosts)
x-ms-exchange-senderadcheck:	1
MIME-Version:	1.0
X-MS-Exchange-CrossTenant-mailboxtype:	HOSTED
X-MS-Exchange-CrossTenant-userprincipalname:	ksb2 AT cornell DOT edu
X-IsSubscribed:	yes
X-MIME-Autoconverted:	from base64 to 8bit by delorie.com id x73DEf7L027315

On 8/2/2019 11:50 PM, Brian Inglis wrote:
> Looking at mintty wiki, it mentions pipe handling, so may reset the signal
> action,

It doesn't.  Look at the mintty source.

> and it mentions that Cygwin emulates ptys using pipes,

Cygwin pty emulation uses Windows named pipes.

> Could Cygwin pty emulation with pipes, under an xterm terminal that perhaps does
> not reset signal actions, be causing or having problems under some
> circumstances, while running external commands in sub-shells without normal
> SIGPIPE signal actions?

I don't see any connection between Cygwin's pty emulation and an application's 
handling of SIGPIPE.

Ken

--
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

- Raw text -