X-Recipient: archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status: No, hits=-10.3 required=5.0	tests=AWL,BAYES_00,KHOP_PGP_SIGNED,KHOP_RCVD_UNTRUST,KHOP_THREADED,RCVD_IN_DNSWL_HI,SPF_HELO_PASS,T_RP_MATCHES_RCVD
X-Spam-Check-By: sourceware.org
Message-ID: <50E234E7.20207@redhat.com>
Date: Mon, 31 Dec 2012 17:59:19 -0700
From: Eric Blake <eblake AT redhat DOT com>
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/17.0 Thunderbird/17.0
MIME-Version: 1.0
To: cygwin AT cygwin DOT com
Subject: Re: sigprocmask issue
References: <50E22B6C DOT 5060409 AT redhat DOT com> <BLU0-SMTP151386F60E8F061F5F2328ACE230 AT phx DOT gbl>
In-Reply-To: <BLU0-SMTP151386F60E8F061F5F2328ACE230@phx.gbl>
OpenPGP: url=http://people.redhat.com/eblake/eblake.gpg
Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------enigD2A4B6274537A481A47B42D7"
X-IsSubscribed: yes
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

--------------enigD2A4B6274537A481A47B42D7
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

On 12/31/2012 05:30 PM, Aaron Schneider wrote:
> On 01/01/2013 1:18, Eric Blake wrote:
>> I'm reporting this now because gnulib unit tests found a failure in
>> stock cygwin 1.7.17, but I'm still investigating whether it is a
>> regression, and/or whether it has been fixed by snapshots.  This
>> relatively simple test case asserts that SIGINT is never delivered as
>> required.
>=20
> I don't if you expect to work, or to fail, but here seem to work (no
> crash o similar)
>=20
> $ ./a.exe
> running "sh -c 'sleep 1; kill -2 4612' &"
> waiting
> unblocking

Odd.  I just noticed that my system is pegged at 100% CPU, attributed to
a syslogd process; wonder if severe load is the culprit that violates
the timing assumptions in that test.  I killed that process, reran the
test, and no longer see the failure.

I'm wondering if I should tweak the gnulib test to use fork() instead of
system(), and maybe do a bit more handshaking, to guarantee that the
signal is being delivered when planned?

--=20
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org


--------------enigD2A4B6274537A481A47B42D7
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)
Comment: Public key at http://people.redhat.com/eblake/eblake.gpg
Comment: Using GnuPG with undefined - http://www.enigmail.net/

iQEcBAEBCAAGBQJQ4jTnAAoJEKeha0olJ0Nq2ycIAItI5xtaEsTOFjkmai2CHZZ8
GwjRUTmQDyrcizhmPtUhHKle4syDr7aWDjFeRRSCRQ3iHfL0LmJr4+m6CpbbkQOf
XdaWrCyXx6lCDj9rjcPWPvs0q5KxxZim1G15Me9lsp/ZyPpuV/eeGPaHFurrIXZP
egv4gl/7ZlmZIOI/X+2yj+Zn1UirrHZ0Ro2DlX+2yqaexd9KaEDyy/+Dzz9f02Ch
JPaTmbN4FmMbEepQS/b7DGsUVCUX6HnQcAm3EHMhHfRQz3RwzujKhQ7Lcwfgxn8s
A+2JC2qBI/ZorqzD+tC+XUrKkjmoqsP/yTUIMAvNipSIvDOMNiPNwss5bTHi7cg=
=cEe+
-----END PGP SIGNATURE-----

--------------enigD2A4B6274537A481A47B42D7--