From owner-freebsd-current@FreeBSD.ORG Sun Mar 22 22:09:58 2015 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id 906A927A; Sun, 22 Mar 2015 22:09:58 +0000 (UTC) Received: from tensor.andric.com (tensor.andric.com [87.251.56.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "tensor.andric.com", Issuer "COMODO RSA Domain Validation Secure Server CA" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 3F432DDE; Sun, 22 Mar 2015 22:09:57 +0000 (UTC) Received: from [IPv6:2001:7b8:3a7::b11b:b36a:c2e8:f12e] (unknown [IPv6:2001:7b8:3a7:0:b11b:b36a:c2e8:f12e]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by tensor.andric.com (Postfix) with ESMTPSA id 44E495C4C; Sun, 22 Mar 2015 23:09:54 +0100 (CET) Subject: Re: Jenkins build is still unstable: FreeBSD_HEAD-tests2 #867 Mime-Version: 1.0 (Mac OS X Mail 8.2 \(2070.6\)) Content-Type: multipart/signed; boundary="Apple-Mail=_6336E6D8-6C10-4D78-BE7A-09B4801AA740"; protocol="application/pgp-signature"; micalg=pgp-sha1 X-Pgp-Agent: GPGMail 2.5b6 From: Dimitry Andric In-Reply-To: <08BB20A2-7B71-4ECF-B246-F3096CABA5E9@gmail.com> Date: Sun, 22 Mar 2015 23:09:40 +0100 Message-Id: <72ABF177-320F-4CB1-8B05-36B133714C55@FreeBSD.org> References: <1669399171.13.1427029129760.JavaMail.jenkins@jenkins-9.freebsd.org> <799490341.14.1427048792932.JavaMail.jenkins@jenkins-9.freebsd.org> <494AEF4B-0AF8-449A-9B41-9AC4F4552AF0@FreeBSD.org> <864EB4DB-2DF7-4294-9498-95E54E6B49CC@FreeBSD.org> <08BB20A2-7B71-4ECF-B246-F3096CABA5E9@gmail.com> To: Garrett Cooper X-Mailer: Apple Mail (2.2070.6) Cc: Craig Rodrigues , "freebsd-testing@freebsd.org" , freebsd-current Current , "jenkins-admin@freebsd.org" , freebsd-toolchain@freebsd.org X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 22 Mar 2015 22:09:58 -0000 --Apple-Mail=_6336E6D8-6C10-4D78-BE7A-09B4801AA740 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 On 22 Mar 2015, at 23:04, Garrett Cooper wrote: >=20 > On Mar 22, 2015, at 15:01, Craig Rodrigues = wrote: >=20 > ... >=20 >> OK, converting expr.y to use unsigned integers would require a bit of = work. >>=20 >> Can you commit your patch to the Makefile? It fixes the problem for = now. >=20 > +1 >=20 > I=92d still like to know why clang 3.5 doesn=92t have this behavior = though =97 there might be other potential issues lurking around that = need to be solved (either here, in ports, or both). Because this version optimizes better around undefined behavior. There are most likely many issues lurking around, and most certainly in ports. I would recommend using UBSan to tackle this kind of thing. -Dimitry --Apple-Mail=_6336E6D8-6C10-4D78-BE7A-09B4801AA740 Content-Transfer-Encoding: 7bit Content-Disposition: attachment; filename=signature.asc Content-Type: application/pgp-signature; name=signature.asc Content-Description: Message signed with OpenPGP using GPGMail -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.27 iEYEARECAAYFAlUPPbEACgkQsF6jCi4glqO+EQCfRV0coLqzbq/b7W2YbXnWWhiA wwUAnjhvUfeCwftSkCrah8o/tttHyjk3 =PUdl -----END PGP SIGNATURE----- --Apple-Mail=_6336E6D8-6C10-4D78-BE7A-09B4801AA740--