From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 105292 invoked by alias); 2 Nov 2015 14:18:42 -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 104858 invoked by uid 89); 2 Nov 2015 14:18:42 -0000 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 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; Mon, 02 Nov 2015 14:18:40 +0000 Received: by calimero.vinschen.de (Postfix, from userid 500) id 89FFDA803FA; Mon, 2 Nov 2015 15:18:38 +0100 (CET) Date: Mon, 02 Nov 2015 14:18:00 -0000 From: Corinna Vinschen To: cygwin@cygwin.com Subject: Re: pthread_kill: signals remain pending after target thread exits Message-ID: <20151102141838.GB963@calimero.vinschen.de> Reply-To: cygwin@cygwin.com Mail-Followup-To: cygwin@cygwin.com References: <28F5B565B6F6424C87E4AC0DCC84316575D71070@S1P5DAG5C.EXCHPROD.USA.NET> <20151021114810.GQ5319@calimero.vinschen.de> <28F5B565B6F6424C87E4AC0DCC84316575D73A86@S1P5DAG5C.EXCHPROD.USA.NET> <20151023125540.GI5319@calimero.vinschen.de> <28F5B565B6F6424C87E4AC0DCC84316575D8071E@S1P5DAG5C.EXCHPROD.USA.NET> <20151028091459.GZ5319@calimero.vinschen.de> <20151029080218.GF5319@calimero.vinschen.de> <28F5B565B6F6424C87E4AC0DCC84316575D81A49@S1P5DAG5C.EXCHPROD.USA.NET> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="V0207lvV8h4k8FAm" Content-Disposition: inline In-Reply-To: <28F5B565B6F6424C87E4AC0DCC84316575D81A49@S1P5DAG5C.EXCHPROD.USA.NET> User-Agent: Mutt/1.5.23 (2014-03-12) X-SW-Source: 2015-11/txt/msg00033.txt.bz2 --V0207lvV8h4k8FAm Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Content-length: 1707 On Oct 29 16:16, John Carey wrote: > > From: Corinna Vinschen [corinna-cygwin@cygwin.com] > > Sent: Thursday, October 29, 2015 1:02 AM > > On Oct 28 10:14, Corinna Vinschen wrote: > ... > > > > Thanks; that was fast! I tried replacing cygwin1.dll with cygwin1-= 20151023.dll . > > > > > > > > The original test case now works. I checked some of my other tests, > > > > and unfortunately some of them failed, so I extracted out a new test > > > > case, which is attached. My guess is that something is subtly diff= erent > > > > about the timing on this test. > > > > > > Is this a regression? Did it work with 2.2.1? > >=20 > > Answering myself here, this didn't work at all in 2.2.1. I can > > reproduce the problem and I'm going to take a look. Not sure if > > there's a quick solution, though. This looks like a deadlock > > situation. The signal definitely got send, I just don't see yet > > why it's not handled in wait_sig. >=20 > Yes, test_pending_signal2.c fails in 2.2.1, though the symptoms > differ: there is no Cygwin process left hanging that cannot be > killed by a Cygwin signal. >=20 > But both tests appear to pass in Cygwin 1.7.9, so in that sense > it is a regression, just not a recent one. The regression here was my original fix. It didn't clear pending signals for an exiting thread thorougly enough. I applied a patch now which should fix this issue. I'll upload a new developer snapshot to https://cygwin.com/snapshots/ later today or tomorrow (still looking into the PrlFS issue). Please give it a try. Thanks, Corinna --=20 Corinna Vinschen Please, send mails regarding Cygwin to Cygwin Maintainer cygwin AT cygwin DOT com Red Hat --V0207lvV8h4k8FAm Content-Type: application/pgp-signature Content-length: 819 -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIbBAEBCAAGBQJWN3C+AAoJEPU2Bp2uRE+gbfIP9jLtYwSKtmkTBPIH/KQ38Sxe wIRpnMNXjjcPm4eQy9b201Kl5LnLp2IhsTxuasm2sslzJzy00K0mNk1o408ur6ET rTPUhnY3346YnGu767NIOGpHnYYtMuoiCrEvXFm69LtGSykqilcDO3umCqMpvH1D VOP2QY3+CqTIgiOLmxUuptC/prfYzLwGoBGc/sgIgvDLc/+WfDW4U7hftVXQAn4G tWLSobE94ccFvzBlTG7vNc+RepcS+MX68XUF656cRbJAfdeJJOuUpwIoXbBkecXV p7Iyni01Y4V9mlZWhQeQ+meV4l5JDjrsS6jOqkWekBJsXWDjDZnASyTKE7X0VSfC MTxSaNsf9hmKH+p/UWXC9jOC7F3HXMHAzohfYh1DVzceHwYRD9bPV/NEnTXlzejt JdtQCEa3NxojRVCptqY8qHwuBXf7nCJlERQoIKGsBhyRvZBaBs6pYJSVMsklPTWq K4gKt2GSo7zS12+DTloKn/C9i2JGGx5Pn/FfkZc7MTvBER44j7o2vC7/M1WKIKtG j2iRPQ4+biisOm2Ul8jN4qTe+ROqlcNbflpS3lZ3ZjQvdgw27I5UPdKXsBzyE+uk jgFVC858I4WH9Jx9nsqEGN5ztf8jbSot3G6O+3efUclvett+L3YDx5c9yDjho06p 48IQtTa0LCb/Pin+UX0= =G0mW -----END PGP SIGNATURE----- --V0207lvV8h4k8FAm--