From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 30238 invoked by alias); 27 Jan 2015 09:25:09 -0000 Mailing-List: contact gdb-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-owner@sourceware.org Received: (qmail 28133 invoked by uid 89); 27 Jan 2015 09:24:47 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-2.5 required=5.0 tests=AWL,SPF_HELO_PASS,SPF_PASS,T_RP_MATCHES_RCVD autolearn=ham version=3.3.2 X-HELO: mx1.redhat.com Received: from mx1.redhat.com (HELO mx1.redhat.com) (209.132.183.28) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES256-GCM-SHA384 encrypted) ESMTPS; Tue, 27 Jan 2015 09:24:25 +0000 Received: from int-mx11.intmail.prod.int.phx2.redhat.com (int-mx11.intmail.prod.int.phx2.redhat.com [10.5.11.24]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id t0R9OFV7028358 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Tue, 27 Jan 2015 04:24:15 -0500 Received: from bordewijk.wildebeest.org (ovpn-116-65.ams2.redhat.com [10.36.116.65]) by int-mx11.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id t0R9ODhY010528 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Tue, 27 Jan 2015 04:24:15 -0500 Received: by bordewijk.wildebeest.org (Postfix, from userid 1000) id 95C0780B2828; Tue, 27 Jan 2015 10:24:13 +0100 (CET) Message-ID: <1422350653.4858.35.camel@bordewijk.wildebeest.org> Subject: Re: [ANNOUNCEMENT] GDB BuildBot From: Mark Wielaard To: Sergio Durigan Junior Cc: GDB Development , Eli Zaretskii Date: Tue, 27 Jan 2015 16:42:00 -0000 In-Reply-To: <87lhkvd9u7.fsf@redhat.com> References: <87bnm1exo6.fsf@redhat.com> <87lhkvd9u7.fsf@redhat.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Mime-Version: 1.0 X-SW-Source: 2015-01/txt/msg00078.txt.bz2 On Wed, 2015-01-21 at 17:53 -0500, Sergio Durigan Junior wrote: > First, thanks to Mark Wielaard for setting up a Debian Wheezy x86_64 > machine as one of our buildslaves! BTW. I saw more spurious failures on this setup than on the other buildbot slaves. After lots of digging it turns out that all released versions of dejagnu have a bug that causes spurious fails in some cases on SMP machines... The patch to fix that was posted back in 2005, and was picked up by fedora in 2006. Which explains why I could reproduce it on my Fedora or RHEL setups. But at least Debian based distros don't have this patch yet, since it is not in the latest 1.5.1 dejagnu release yet. It is in upstream dejagnu git now: https://lists.gnu.org/archive/html/dejagnu/2011-03/msg00019.html Full writeup is in the Debian bug report: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=3D776362 If you are running a buildbot slave (or just make gdb-check) and run a machine with multiple cores you might want to check that you have the above patch applied to prevent some spurious FAILs. Cheers, Mark