From owner-freebsd-threads@FreeBSD.ORG Fri Jul 20 16:32:13 2012 Return-Path: Delivered-To: freebsd-threads@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 997C51065670; Fri, 20 Jul 2012 16:32:13 +0000 (UTC) (envelope-from kostikbel@gmail.com) Received: from mail.zoral.com.ua (mx0.zoral.com.ua [91.193.166.200]) by mx1.freebsd.org (Postfix) with ESMTP id 0C86E8FC1A; Fri, 20 Jul 2012 16:32:12 +0000 (UTC) Received: from skuns.kiev.zoral.com.ua (localhost [127.0.0.1]) by mail.zoral.com.ua (8.14.2/8.14.2) with ESMTP id q6KGWIow026379; Fri, 20 Jul 2012 19:32:18 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: from deviant.kiev.zoral.com.ua (kostik@localhost [127.0.0.1]) by deviant.kiev.zoral.com.ua (8.14.5/8.14.5) with ESMTP id q6KGW5W7019710; Fri, 20 Jul 2012 19:32:05 +0300 (EEST) (envelope-from kostikbel@gmail.com) Received: (from kostik@localhost) by deviant.kiev.zoral.com.ua (8.14.5/8.14.5/Submit) id q6KGW5mW019709; Fri, 20 Jul 2012 19:32:05 +0300 (EEST) (envelope-from kostikbel@gmail.com) X-Authentication-Warning: deviant.kiev.zoral.com.ua: kostik set sender to kostikbel@gmail.com using -f Date: Fri, 20 Jul 2012 19:32:05 +0300 From: Konstantin Belousov To: John Marino Message-ID: <20120720163205.GR2676@deviant.kiev.zoral.com.ua> References: <500854EC.3040305@marino.st> <20120719212326.GN98608@elvis.mu.org> <50090FB9.6050606@marino.st> <20120720150803.GS98608@elvis.mu.org> <5009873C.4080709@marino.st> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="SUcp5/vPb8ZOOFiR" Content-Disposition: inline In-Reply-To: <5009873C.4080709@marino.st> User-Agent: Mutt/1.4.2.3i X-Virus-Scanned: clamav-milter 0.95.2 at skuns.kiev.zoral.com.ua X-Virus-Status: Clean X-Spam-Status: No, score=-4.0 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00 autolearn=ham version=3.2.5 X-Spam-Checker-Version: SpamAssassin 3.2.5 (2008-06-10) on skuns.kiev.zoral.com.ua Cc: freebsd-threads@freebsd.org Subject: Re: Fingerpointing about broken Ada tasking starting with FreeBSD 9.0 threading X-BeenThere: freebsd-threads@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Threading on FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 20 Jul 2012 16:32:13 -0000 --SUcp5/vPb8ZOOFiR Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Fri, Jul 20, 2012 at 06:28:44PM +0200, John Marino wrote: > On 7/20/2012 17:08, Alfred Perlstein wrote: > > > >There is no big picture unless you take the time to diagnose what > >is happening. There is a bug somewhere. Talking about "big > >picture" doesn't mean anything. > > > >The bug could be due to any of the reasons you described, or due > >to other reasons. What needs to be done is some investigation into > >what is triggering the bug and then determine if it's a bug, false > >positive, corruption or something else. >=20 > I agree, and I'll try. What I was trying to get at is *if* the problem= =20 > really is with FreeBSD, there should be more than just me looking into=20 > it given the implications of what that would mean. The worst case=20 > scenario is that this is 100% a FreeBSD problem, and that would have=20 > some fallout. In my previous work, we had to map out every possibility= =20 > and plan for it -- we didn't have the luxury of determining the fault=20 > and then coming up with a plan. That mentality is carrying over probably. >=20 > > > >It sounds like you're advocating for just removing an assertion without > >proving it's a false positive. I don't think that will work out=20 > >unfortunately. > > >=20 > Not at all, but there was a serious consequence of this assertion and=20 > it's not a pre-production assertion either. I don't have any=20 > preconceived notion of the cause of the fault nor the solution. My mind= =20 > is wide open at this point. FYI, this problem is supposedly fixed by r238637, as much as I can judge based on your description and commit itself. --SUcp5/vPb8ZOOFiR Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (FreeBSD) iEYEARECAAYFAlAJiAUACgkQC3+MBN1Mb4j97QCg2nTw6N4wxx2M586I/+uvN31Y QGQAn3pHIIkcDTQEiTVx3HeeLHcgVxwo =3aun -----END PGP SIGNATURE----- --SUcp5/vPb8ZOOFiR--