From owner-freebsd-current@FreeBSD.ORG Sun Oct 27 21:58:47 2013 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 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTP id AB56CCB5 for ; Sun, 27 Oct 2013 21:58:47 +0000 (UTC) (envelope-from bounces+73574-dfb6-freebsd-current=freebsd.org@sendgrid.me) Received: from o3.shared.sendgrid.net (o3.shared.sendgrid.net [208.117.48.85]) by mx1.freebsd.org (Postfix) with SMTP id 416CF2FD3 for ; Sun, 27 Oct 2013 21:58:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sendgrid.info; h=from:mime-version:to:cc:subject:references:in-reply-to:content-type:content-transfer-encoding; s=smtpapi; bh=8HxvpxGuCLkeH1bagJe5ikcaiLs=; b=VMA8uZFF5t8KJhygvt au6oidJrV25RWsWj09Uy0tdZuKIIwCNVT8JZUBdZzMpXJVWFpwwwD5aTD78s2oPg 9VKpA1oKDMjTIG+LBRu3b/X7x+9dIX7QpwFLR3bTQcBM3fUJUuIPq6S5uICPg/1B sAcMEcAiLTe5IkxCcExQy4oPo= Received: by mf14.sendgrid.net with SMTP id mf14.26874.526D8C954 Sun, 27 Oct 2013 21:58:45 +0000 (GMT) Received: from mail.tarsnap.com (unknown [10.60.208.13]) by mi8 (SG) with ESMTP id 141fbed2979.2baf.2e7236 for ; Sun, 27 Oct 2013 21:58:45 +0000 (UTC) Received: (qmail 55469 invoked from network); 27 Oct 2013 21:58:44 -0000 Received: from unknown (HELO clamshell.daemonology.net) (127.0.0.1) by ec2-107-20-205-189.compute-1.amazonaws.com with ESMTP; 27 Oct 2013 21:58:44 -0000 Received: (qmail 19429 invoked from network); 27 Oct 2013 21:57:28 -0000 Received: from unknown (HELO clamshell.daemonology.net) (127.0.0.1) by clamshell.daemonology.net with SMTP; 27 Oct 2013 21:57:28 -0000 Message-ID: <526D8C48.1010907@freebsd.org> Date: Sun, 27 Oct 2013 14:57:28 -0700 From: Colin Percival User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:24.0) Gecko/20100101 Thunderbird/24.0 MIME-Version: 1.0 To: Erik Cederstrand Subject: Re: HELP WANTED: Figure out why svnlite build is sometimes not reproducible References: <526D7FBB.3060506@freebsd.org> In-Reply-To: X-Enigmail-Version: 1.5.2 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit X-SG-EID: XhyBwObMhraAR+zdwMupjQ6BIqbhdEfc+6p+uBxS7S/F6tz08zFvYUkvTz9x4wtilxeITiscIxwx5trpZ0qj6qDwUsagphkw0JZC/jeq6zhQcg/06/LE1XjGz/jE+sZsclRSqukceo6vckPj0E3ewrpIypxNAIsC5yBwdVxU0+E= Cc: FreeBSD current X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.14 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, 27 Oct 2013 21:58:47 -0000 On 10/27/13 14:52, Erik Cederstrand wrote: > Den 27/10/2013 kl. 22.03 skrev Colin Percival : >> Doing freebsd-update builds, I've now had two instances where /usr/bin/svnlite >> has built inexplicably differently -- changes scattered all over the binary. > > Which kind of changes? Are you aware of the -D flag to ar(1) (wipes timestamps in archives)? Are you always using the same SRCDIR/DESTDIR (this affects the __FILE__ macro)? Same DEBUG_FLAGS? Changes in lots of non-7-bit-ASCII bits all over the file. I'm guessing it's executable code. Yes, aware of -D flag. That's a red herring since this isn't an archive; and all the other binaries are fine. Yes, all the build context is the same -- this is happening inside a chroot with the same build script running every time. -- Colin Percival Security Officer Emeritus, FreeBSD | The power to serve Founder, Tarsnap | www.tarsnap.com | Online backups for the truly paranoid