From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=)
Subject: bug#29676: Guix test failure on tests/store.
Date: Tue, 12 Dec 2017 21:22:25 +0100
Message-ID: <871sjzitmm.fsf@gnu.org>
References: <87tvwwcfhn.fsf@gnu.org> <87shcgorq5.fsf@gnu.org>
	<87shcfdh5w.fsf@gnu.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]:40742)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1eOr4z-0007xD-Up
	for bug-guix@gnu.org; Tue, 12 Dec 2017 15:23:06 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1eOr4w-00005m-Om
	for bug-guix@gnu.org; Tue, 12 Dec 2017 15:23:05 -0500
Received: from debbugs.gnu.org ([208.118.235.43]:50273)
	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 1eOr4w-00005a-LJ
	for bug-guix@gnu.org; Tue, 12 Dec 2017 15:23:02 -0500
Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1eOr4w-0001tC-Fo
	for bug-guix@gnu.org; Tue, 12 Dec 2017 15:23:02 -0500
Sender: "Debbugs-submit" <debbugs-submit-bounces@debbugs.gnu.org>
Resent-Message-ID: <handler.29676.B29676.15131101507197@debbugs.gnu.org>
In-Reply-To: <87shcfdh5w.fsf@gnu.org> (Roel Janssen's message of "Tue, 12 Dec
	2017 17:50:35 +0100")
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: Roel Janssen <roel@gnu.org>
Cc: 29676@debbugs.gnu.org

Roel Janssen <roel@gnu.org> skribis:

> Ludovic Court=C3=A8s writes:
>
>> Hi,
>>
>> Roel Janssen <roel@gnu.org> skribis:
>>
>>> I attached the build log.  The relevant bit is this:
>>>
>>> actual-error:
>>> + (srfi-34
>>> +   #<condition &nix-protocol-error [message: "path `dtmp/guix-tests/st=
ore/462z3fnl7bs44vp9s97jyg1z74nsfvly-tar' is not in the Nix store" status: =
1] 1071090>)
>>> result: FAIL
>>
>> The =E2=80=9Cdtmp=E2=80=9D bit (instead of =E2=80=9C/tmp=E2=80=9D) looks=
 fishy and would suggest a
>> memory corruption, presumably in the daemon.
>
> The daemon used in the test, or the daemon used to do the package build?

The daemon under test (within the build environment).

>> I suppose the failure random, isn=E2=80=99t it?
>
> I ran it again, and I've got the same error:
>
> actual-error:
> + (srfi-34
> +   #<condition &nix-protocol-error [message: "path `dtmp/guix-tests/stor=
e/462z3fnl7bs44vp9s97jyg1z74nsfvly-tar' is not in the Nix store" status: 1]=
 1754ed0>)
>
> So that's either a very funny coincidence, or it's a structural problem.

It=E2=80=99s better if it=E2=80=99s not random.  :-)

> Do you have any suggestions for how I can debug this problem?

Assuming the failure also happens when you run =E2=80=9Cmake check=E2=80=9D=
 outside the
build container (in the failed build tree), can you add =E2=80=98valgrind=
=E2=80=99 in
=E2=80=98test-env=E2=80=99?  Specifically, in =E2=80=98test-env=E2=80=99, l=
ook for the line that invokes
=E2=80=98./pre-inst-env guix-daemon=E2=80=99 and change it to =E2=80=98./pr=
e-inst-env valgrind
guix-daemon=E2=80=99.

Ludo=E2=80=99.