From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=)
Subject: bug#22122: {python,
	python2}-statsmodels on i686: "SVD did not converge"
Date: Wed, 30 Aug 2017 10:55:14 +0200
Message-ID: <87efrt77v1.fsf@gnu.org>
References: <87h9jreflp.fsf@netris.org> <87378chwd3.fsf@netris.org>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Return-path: <bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:42262)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1dmyn4-0002jR-Qh
	for bug-guix@gnu.org; Wed, 30 Aug 2017 04:56:03 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1dmyn4-0005Qx-16
	for bug-guix@gnu.org; Wed, 30 Aug 2017 04:56:02 -0400
Received: from debbugs.gnu.org ([208.118.235.43]:52842)
	by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16)
	(Exim 4.71) (envelope-from <Debian-debbugs@debbugs.gnu.org>)
	id 1dmyn3-0005Ql-Tw
	for bug-guix@gnu.org; Wed, 30 Aug 2017 04:56:01 -0400
Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1dmyn3-0004mZ-Mk
	for bug-guix@gnu.org; Wed, 30 Aug 2017 04:56:01 -0400
Sender: "Debbugs-submit" <debbugs-submit-bounces@debbugs.gnu.org>
Resent-Message-ID: <handler.22122.B22122.150408332718331@debbugs.gnu.org>
In-Reply-To: <87378chwd3.fsf@netris.org> (Mark H. Weaver's message of "Mon, 28
	Aug 2017 05:31:20 -0400")
List-Id: Bug reports for GNU Guix <bug-guix.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/bug-guix>,
	<mailto:bug-guix-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/bug-guix/>
List-Post: <mailto:bug-guix@gnu.org>
List-Help: <mailto:bug-guix-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/bug-guix>,
	<mailto:bug-guix-request@gnu.org?subject=subscribe>
Errors-To: bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org
Sender: "bug-Guix" <bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org>
To: Mark H Weaver <mhw@netris.org>
Cc: 22122@debbugs.gnu.org

Mark H Weaver <mhw@netris.org> skribis:

> I analyzed Hydra's database, and discovered that these "SVD did not
> converge" test failures on i686 depend only on which machine attempts
> the build, and are otherwise deterministic.
>
> hydra.gnunet.org fails 100% of the time.  It has *never* passed this
> test on i686.  chapters.gnu.org also fails 100% of the time.
>
> guix.sjd.se consistently passes the test, since at least as far back as
> July 2016.

Weird.  Could it be that something in the stack uses ISA extensions?
(What could it be on i686?)

Ludo=E2=80=99.