X-Recipient: archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status: No, hits=-7.1 required=5.0	tests=AWL,BAYES_00,KHOP_PGP_SIGNED,KHOP_THREADED,RP_MATCHES_RCVD,SPF_HELO_PASS
X-Spam-Check-By: sourceware.org
Message-ID: <502DC0B8.9020406@dancol.org>
Date: Thu, 16 Aug 2012 20:55:36 -0700
From: Daniel Colascione <dancol AT dancol DOT org>
User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:12.0) Gecko/20120428 Thunderbird/12.0.1
MIME-Version: 1.0
To: cygwin AT cygwin DOT com
Subject: Re: Another sigwaitinfo problem (with testcase)
References: <502B3567 DOT 9090808 AT dancol DOT org> <20120816184348 DOT GA16945 AT ednor DOT casa DOT cgf DOT cx> <502DBFC3 DOT 9080707 AT dancol DOT org>
In-Reply-To: <502DBFC3.9080707@dancol.org>
Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="------------enigC279F0A56BD41AB9BB8468F0"
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

--------------enigC279F0A56BD41AB9BB8468F0
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable

On 8/16/2012 8:51 PM, Daniel Colascione wrote:
> On 8/16/2012 11:43 AM, Christopher Faylor wrote:
>> On Tue, Aug 14, 2012 at 10:36:39PM -0700, Daniel Colascione wrote:
>>> When run on a Linux machine, this program starts up and blocks on sigwa=
itinfo.
>>> You can suspend and resume the program using usual job control faciliti=
es, and
>>> on SIGINT, the program prints a message and exits. When the program res=
umes
>>> after being stopped, it prints "resumed".
>>>
>>> With the 2012-08-07 Cygwin snapshot, this program prints "resumed" imme=
diately
>>> after receiving SIGTSTP, then fails to respond to any signal, even sign=
als not
>>> in the blocked set. A simpler test program that just calls "raise (SIGS=
TOP)"
>>> property stops itself before resuming execution.
>>
>> This should be fixed in the latest snapshot.
>>
>> Thanks for the test case.
>=20
> Thanks for the fix. It's incomplete, though. Previously, C-z would make t=
he
> program print "resumed", then become insensitive the signals present in
> waitmask. With the 2012-08-16 snapshot, C-z stops the program, but on
> resumption, it doesn't print "resumed". Instead, on resumption, the progr=
am
> enters the same signal-insensitive state it did with the 2012-08-07 snaps=
hot.
>=20

More odd behavior under the 2012-08-16 snapshot:

1) Start vim
2) Hit C-z
3) Run "fg"
4) Observe that vim doesn't reappear. Rather, nothing happens, until...
5) C-c
6) vim now redisplays and accepts input



--------------enigC279F0A56BD41AB9BB8468F0
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 (Cygwin)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/

iEYEARECAAYFAlAtwLgACgkQ17c2LVA10Vtg6gCgg/DRFygc4H2jbEXQkkuogmuR
A/EAoJQ5ateSeGYm5AKt4LVn6Zqc/cmr
=KPoL
-----END PGP SIGNATURE-----

--------------enigC279F0A56BD41AB9BB8468F0--