From mboxrd@z Thu Jan 1 00:00:00 1970 From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=) Subject: Re: hydra python2-numpy-1.9.1 failure Date: Thu, 11 Dec 2014 14:20:25 +0100 Message-ID: <87egs6gw6e.fsf@gnu.org> References: <87lhmf9wy6.fsf@yeeloong.lan> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Return-path: Received: from eggs.gnu.org ([2001:4830:134:3::10]:36260) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xz3fW-0007a1-A5 for guix-devel@gnu.org; Thu, 11 Dec 2014 08:20:38 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Xz3fR-00067i-EV for guix-devel@gnu.org; Thu, 11 Dec 2014 08:20:34 -0500 Received: from hera.aquilenet.fr ([2a01:474::1]:45533) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Xz3fR-00067V-6q for guix-devel@gnu.org; Thu, 11 Dec 2014 08:20:29 -0500 In-Reply-To: (Federico Beffa's message of "Wed, 10 Dec 2014 22:19:52 +0100") List-Id: "Development of GNU Guix and the GNU System distribution." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org Sender: guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org To: Federico Beffa Cc: Guix-devel Federico Beffa skribis: > Thanks for the input! It looks like on hydra the failure is > reproducible. It=E2=80=99s actually hard to know, because guix-daemon on hydra.gnu.org ru= ns with --cache-failures. > Now that you mention race conditions, I remember having a hard time > with parallel builds in ATLAS; and numpy makes use of it. I may try > adding '#:parallel-tests? #f'. Check if that flag has an effect at all. For instance, Automake-generated makefiles have supported parallel test suites for not-too-long (a couple of years maybe) and even there it=E2=80=99s optional. Hand-written build systems often run tests sequentially. Ludo=E2=80=99.