From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 20882 invoked by alias); 28 Oct 2014 14:19:02 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 20867 invoked by uid 89); 28 Oct 2014 14:19:01 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-5.9 required=5.0 tests=AWL,BAYES_00 autolearn=ham version=3.3.2 X-HELO: calimero.vinschen.de Received: from aquarius.hirmke.de (HELO calimero.vinschen.de) (217.91.18.234) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with ESMTP; Tue, 28 Oct 2014 14:19:00 +0000 Received: by calimero.vinschen.de (Postfix, from userid 500) id 0BEDF8E0A28; Tue, 28 Oct 2014 15:18:58 +0100 (CET) Date: Tue, 28 Oct 2014 14:19:00 -0000 From: Corinna Vinschen To: cygwin@cygwin.com Subject: [GOLDSTARS] Re: Threads Message-ID: <20141028141858.GK20607@calimero.vinschen.de> Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: <54450835.3050602@cornell.edu> <5448E6F9.8040005@dronecode.org.uk> <5448EEBF.3020706@cornell.edu> <20141023153730.GC20607@calimero.vinschen.de> <544A327E.9090006@dronecode.org.uk> <20141024125416.GK20607@calimero.vinschen.de> <20141024135231.GL20607@calimero.vinschen.de> <544F736F.2020900@dronecode.org.uk> <20141028114032.GJ20607@calimero.vinschen.de> <544F9E4E.9080107@cornell.edu> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="dgVgbXf0Vb2tUvlQ" Content-Disposition: inline In-Reply-To: <544F9E4E.9080107@cornell.edu> User-Agent: Mutt/1.5.23 (2014-03-12) X-SW-Source: 2014-10/txt/msg00495.txt.bz2 --dgVgbXf0Vb2tUvlQ Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-length: 1460 On Oct 28 09:46, Ken Brown wrote: > On 10/28/2014 7:40 AM, Corinna Vinschen wrote: > >On Oct 28 10:43, Jon TURNEY wrote: > >>On 24/10/2014 14:52, Corinna Vinschen wrote: > >>>I discussed this with my college Kai Tietz (many thanks to him from > >>>here), and we came up with a problem in sigdelayed in the 64 bit case: > >>>pushf is called *after* aligning the stack with andq. This alignment > >>>potentially changes the CPU flag values so the restored flags are > >>>potentially not the flags when entering sigdelayed. > >>> > >>>I just applied a patch and created new snapshots on > >>>https://cygwin.com/snapshots/ > >>> > >>>I couldn't reproduce the problem locally, so I'd be grateful if you > >>>could test if that fixes the problem in your testcase, Jon. > >> > >>I've tried that snapshot with both my testcase and emacs, without probl= ems. > >> > >>Thanks very much for fixing this! > > > >Thanks again to Kai Tietz for helping me with this. >=20 > And thanks to Eli for suggesting that we look for corruption of the flags > register, and to Jon for providing the test case that narrowed it down to > signal handling. Absolutely. Since that's a serious but very subtil error, and you all were very resourceful and diligent helping to fix it, I buy us all a round of goldstars. Thanks guys, Corinna --=20 Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer cygwin AT cygwin DOT com Red Hat --dgVgbXf0Vb2tUvlQ Content-Type: application/pgp-signature Content-length: 819 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAEBAgAGBQJUT6XRAAoJEPU2Bp2uRE+g9XcP/R7CT+pVs0jei+YC1Q1mmjM0 rhcFeUAe40fGsCaHD/vzahPJV6musOuJsl6l/cJSTYXUvSQnn9DUWBXk/zgKO65r 95CLsk7KvtVHceBdyYY+I0fc9KafzbDet6TUVLsQLTQZYykPArgQNWDVnBZnBJ0w hw/jsiBIjhV4VZvRxxY7eLR9Ql5UFCoX4IlZIGRcHWjJnsSYzazUX3+yNe6slUxz E0vJHScG8fE1zVrntXg+b5HQT8ua/LglMIKM1+9Unevh61MVfKFrTNpF7NRm3n6/ zIYfhwXvpRt3YBYegrJMyYrmI8BZT6ckkOnf6S4JInCS5GSipW6/N+0rV/AaYyV9 2SBzfCbEGNns5MMq1NcKUQ0TVKg7Wlet8V7ZfsJgb/c20lNlRABzaWVt/Py/tw77 m6y3W5kpqupPBGE8U6YaNK3wqpQKDmxT/IoJlYbD5tTE7p5w8i/bH0VfAIrtZ/06 Pe51yxsE/12L779m1dtrSRm81k6IX4U4Q9WyQG43yJ51ZzKBZKmmO7Xs3owxQad8 iCr7qtcZovkRBiPdXXJNMjSU6mq6V4J/0u/2zQ20NuPp1jpfUf4vbOhAOXHft3W0 OPGDiiP/6aqBCsLL0S16eV5uskAyIpK96z9KNH342U2wubreUCPp3l+GiIODdI/6 8DdsXEvkie1CS80OcM8v =RP3u -----END PGP SIGNATURE----- --dgVgbXf0Vb2tUvlQ--