From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff King Subject: Re: test suite failure t5570, 8 with v2.4.1-168-g1ea28e1 Date: Tue, 19 May 2015 23:01:18 -0400 Message-ID: <20150520030118.GA7223@peff.net> References: <20150519172254.GA27174@peff.net> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Cc: Eric Sunshine , "git@vger.kernel.org" To: Stefan Beller X-From: git-owner@vger.kernel.org Wed May 20 05:01:36 2015 Return-path: Envelope-to: gcvg-git-2@plane.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YuuGG-0007F3-55 for gcvg-git-2@plane.gmane.org; Wed, 20 May 2015 05:01:36 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752651AbbETDBZ (ORCPT ); Tue, 19 May 2015 23:01:25 -0400 Received: from cloud.peff.net ([50.56.180.127]:32986 "HELO cloud.peff.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1752177AbbETDBV (ORCPT ); Tue, 19 May 2015 23:01:21 -0400 Received: (qmail 2690 invoked by uid 102); 20 May 2015 03:01:21 -0000 Received: from Unknown (HELO peff.net) (10.0.1.1) by cloud.peff.net (qpsmtpd/0.84) with SMTP; Tue, 19 May 2015 22:01:21 -0500 Received: (qmail 19877 invoked by uid 107); 20 May 2015 03:01:22 -0000 Received: from sigill.intra.peff.net (HELO sigill.intra.peff.net) (10.0.0.7) by peff.net (qpsmtpd/0.84) with SMTP; Tue, 19 May 2015 23:01:22 -0400 Received: by sigill.intra.peff.net (sSMTP sendmail emulation); Tue, 19 May 2015 23:01:18 -0400 Content-Disposition: inline In-Reply-To: Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: On Tue, May 19, 2015 at 12:16:57PM -0700, Stefan Beller wrote: > I did have a special flag set, which is > CC = /usr/lib/gcc-snapshot/bin/gcc > which is using the latest snapshot of the gcc compiler > gcc (Ubuntu 20140405-0ubuntu1) 4.9.0 20140405 > (experimental) [trunk revision 209146] I'm not sure 2014 counts as the "latest". :) My stock compiler is 4.9.2, and gcc-snapshot on Debian unstable is: gcc (Debian 20150516-1) 6.0.0 20150516 (experimental) [trunk revision 223239] > Could somebody try to reproduce the failing test using the latest gcc > snapshot compiler? Both versions I listed above seem to work fine for me. Of course we can't definitively rule out git provoking undefined behavior in certain compiler versions, but short of more data, I'd say it's probably a gcc bug in 4.9.0 which has since been fixed. -Peff