From owner-freebsd-toolchain@FreeBSD.ORG Sun Mar 22 22:11:26 2015 Return-Path: Delivered-To: freebsd-toolchain@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id A778B4A1; Sun, 22 Mar 2015 22:11:26 +0000 (UTC) Received: from mail-pd0-x231.google.com (mail-pd0-x231.google.com [IPv6:2607:f8b0:400e:c02::231]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 628E1E8D; Sun, 22 Mar 2015 22:11:26 +0000 (UTC) Received: by pdnc3 with SMTP id c3so167378325pdn.0; Sun, 22 Mar 2015 15:11:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=content-type:mime-version:subject:from:in-reply-to:date:cc :message-id:references:to; bh=cUvNI2mNl/LLuCKDsxT+AGYmKAIaaSwQ81n136ydiwM=; b=WMXxwk6JCW/YUTCrCCIvBtsEBqSDMUg77fQp+5GoV8tSA9RCBscnn+ikw16ddDNdP2 49+T3ZlPmSsYtavSpY+vNd+yXuxaHpobG3YzhCbJFcJvgZQGnEwvDdLNumWfK1F4Chnr 7c1wHb5v+4Sih/AR1zDhlebxhHbY0GW1Mac0rSQUcaOqTgBs+Rd6PlFu4mbLLPFOESUm k8aefepY/3P/lqI1/xJVf00z7qZkLPYZmN2pa908moE1U9uU8LZ5kXjkRJUwnwdwwDHN FRD2pkoxrZF9DXLLBHLxZOkiNTfoaiONmUJbjl4zVnb5Q7osg9O4ey6TVrp2c4xgta1K M7WA== X-Received: by 10.68.97.65 with SMTP id dy1mr15499666pbb.10.1427062285909; Sun, 22 Mar 2015 15:11:25 -0700 (PDT) Received: from ?IPv6:2601:8:ab80:7d6:7544:258:ce3d:185a? ([2601:8:ab80:7d6:7544:258:ce3d:185a]) by mx.google.com with ESMTPSA id ha5sm5194700pbb.34.2015.03.22.15.11.24 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sun, 22 Mar 2015 15:11:25 -0700 (PDT) Content-Type: multipart/signed; boundary="Apple-Mail=_029FC81D-E914-4D1C-8C87-527A0BE03AA8"; protocol="application/pgp-signature"; micalg=pgp-sha512 Mime-Version: 1.0 (Mac OS X Mail 7.3 \(1878.6\)) Subject: Re: Jenkins build is still unstable: FreeBSD_HEAD-tests2 #867 From: Garrett Cooper In-Reply-To: <72ABF177-320F-4CB1-8B05-36B133714C55@FreeBSD.org> Date: Sun, 22 Mar 2015 15:11:22 -0700 Message-Id: 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> <72ABF177-320F-4CB1-8B05-36B133714C55@FreeBSD.org> To: Dimitry Andric X-Mailer: Apple Mail (2.1878.6) Cc: "freebsd-testing@freebsd.org" , freebsd-current Current , "jenkins-admin@freebsd.org" , freebsd-toolchain@freebsd.org X-BeenThere: freebsd-toolchain@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Maintenance of FreeBSD's integrated toolchain List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 22 Mar 2015 22:11:26 -0000 --Apple-Mail=_029FC81D-E914-4D1C-8C87-527A0BE03AA8 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=windows-1252 On Mar 22, 2015, at 15:09, Dimitry Andric wrote: > 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). >=20 > Because this version optimizes better around undefined behavior. = There > are most likely many issues lurking around, and most certainly in = ports. >=20 > I would recommend using UBSan to tackle this kind of thing. I hope this got a ports tinderbox run first=85 Adding UBSan to tinderbox = runs for toolchain upgrades [in the future] might be a good idea. --Apple-Mail=_029FC81D-E914-4D1C-8C87-527A0BE03AA8 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----- Comment: GPGTools - https://gpgtools.org iQEcBAEBCgAGBQJVDz4KAAoJEMZr5QU6S73e3rcH/1ZT6l5PyKPV3xGX0YGSjSPn J2bSOr8vpBx60voNtrHLslpsqUQEDVXGSing0mhXxHDNx4+QzZqCvP6N3BRXr02c mYm/ikZBJ0fE6AjplOKX4DrVUh65PEGnp9+9z/3XezBebvQKmdbt2Uo3mHfQUQcq 08wj/nc5wtpf2W3bcCDE6iYU1bwWDZYpbwlTQjCpegzWW2Q+EDYMdIE2bEXkEBmq up55M5pVqbIhelY1D/d5BlW/PYDGKop5JDDmH8STiG1eSBNuUJtv6T/9+3inVZAk y9iWvP0GzkE+oD8mJOKVZ1MFF/Z24qzH0VszhWvdBW41r4aIVyj4SK5UFtTTnCY= =jFNA -----END PGP SIGNATURE----- --Apple-Mail=_029FC81D-E914-4D1C-8C87-527A0BE03AA8--