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:date:from:to:subject:message-id:reply-to
	:references:mime-version:content-type:in-reply-to; q=dns; s=
	default; b=WFYGOK8SkXDcoBaFXSuCCj5BJrTEJ+eXvPaAX1cY4ngaqbYq1AQWy
	NdjhOhlptB1qohm6D48xKvciHdKECpi70XWmi0cWJ/fos4JTKE03EGQFfl8qztoz
	UULDHKcE0ImYRPMTwV2g/c9KegqHc7jqctCeVGdPMwv58OMlB1ya2s=
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:date:from:to:subject:message-id:reply-to
	:references:mime-version:content-type:in-reply-to; s=default;
	 bh=51quwPROIbaujrDa46S6UT5/R6Q=; b=fF4T9/gaVZC4TxC8CugDvgTFNV4o
	5ta+sYW9lHt6z4vgzjsLpZM0ksUJIF4HybljEhV3C3NSclch99sND2RXQNJ9Sz8l
	l+LkRJ3PljxHSgIKbNp1pKCy1YR9hdqeW0FgnpyNrBagGxmZRoctH6/uQlw07qsa
	3DftcSHjnqbJaPc=
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=-5.4 required=5.0 tests=AWL,BAYES_00,KAM_LAZY_DOMAIN_SECURITY autolearn=no version=3.3.2
X-HELO: calimero.vinschen.de
Date: Fri, 24 Jul 2015 15:34:08 +0200
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: [ANNOUNCEMENT] Update: mintty 2.1.2
Message-ID: <20150724133408.GB7535@calimero.vinschen.de>
Reply-To: cygwin AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
References: <announce DOT 55B1677D DOT 5080303 AT towo DOT net> <63a08c60771faffa23bc1c029235301d DOT squirrel AT oude-webmail DOT xs4all DOT nl> <55B22422 DOT 6000601 AT towo DOT net> <d9ef810e0ad325a9b51f641a10a06f0b DOT squirrel AT oude-webmail DOT xs4all DOT nl>
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha256;	protocol="application/pgp-signature"; boundary="9zSXsLTf0vkW971A"
Content-Disposition: inline
In-Reply-To: <d9ef810e0ad325a9b51f641a10a06f0b.squirrel@oude-webmail.xs4all.nl>
User-Agent: Mutt/1.5.23 (2014-03-12)

--9zSXsLTf0vkW971A
Content-Type: text/plain; charset=utf-8
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On Jul 24 15:18, Houder wrote:
> Hi Thomas,
>=20
> >>> mintty 2.1.2 is an update in response to a number of crash reports un=
der
> >>> unclear circumstances;
> > To resolve this discomforting issue which I still cannot reproduce,
> > could please those who experience a crash report some details about
> > their calling environment?
> > Could the issue be related to the occasional fork() resource problems in
> > cygwin?
>=20
> ... euh, I do not believe so (in my case) ... I installed v211 using setu=
p, which as
> you know, does a full "rebase" ...
>=20
> Also using 'setsid mintty' (in case of v113, v203) does not fail ...
>=20
> > How much free memory do you have?
>=20
>  - my computer has lots of free memory (using less than 2 Gb of 8 Gb)
>  - my environment: using Cygwin (only the traditional tools)
>  - plus: Explorer (and most of the time: Process Explorer from SysInterna=
ls)
>=20
> I am really surprised, that you (and others?) do not experience crashes (=
v211, v212
> if -D is specfied). Failure occurs consistent on my side.
>=20
> > Maybe setsid() should not be called if fork() fails...
> > Could you try this please:
> >    if (daemonize && !isatty(0)) {
> >      int pid =3D fork();
> >      if (pid > 0) exit(0);    // exit parent process
> >      if (pid =3D=3D 0) setsid();  // detach child process
> >      if (pid < 0) {
> >        error("could not detach from caller");
> >        exit(9);
> >      }
> >    }
>=20
> Hint: source code of setsid.c -- util-linux package)
>=20
> >> (... and I ask myself whether or not the condition '!isatty' is the "c=
orrect condition" to
> >>   go "daemon")
> > I wanted to check ttyname() for "/cons" but surprisingly ttyname() was
> > null when started from cygwin console;
>=20
> ... I expect ttyname() to return NULL, as mintty is a GUI application ...=
 (and it did, using
> a "small GUI test program"; however it returned /dev/pty0 when executing =
it from a dos console
> in which mintty had been started). Yes, I am confused).
>=20
> As I wrote 'and I asked myself', I was wondering about something like: 'g=
etpid() !=3D 1'

Guys, the Cygwin DLL is as much open source as the other stuff we're
talking about here.  It's a user space DLL, not a kernel driver or
rocket science.  Give debugging a chance.  Ideally build your own Cygwin
DLL with CFLAGS=3D-g to avoid optimization.  Please don't let me do this
alone and just give up if I don't.


Corinna

--=20
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Maintainer                 cygwin AT cygwin DOT com
Red Hat

--9zSXsLTf0vkW971A
Content-Type: application/pgp-signature

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
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=cIea
-----END PGP SIGNATURE-----

--9zSXsLTf0vkW971A--