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: Wed, 20 Dec 2017 14:11:33 +0100
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To: Roel Janssen <roel@gnu.org>
Cc: 29676@debbugs.gnu.org

Hi Roel,

ludo@gnu.org (Ludovic Court=C3=A8s) skribis:

> Roel Janssen <roel@gnu.org> skribis:

[...]

>>>> actual-error:
>>>> + (srfi-34
>>>> +   #<condition &nix-protocol-error [message: "path `dtmp/guix-tests/s=
tore/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) look=
s 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/sto=
re/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,=
 look for the line that invokes
> =E2=80=98./pre-inst-env guix-daemon=E2=80=99 and change it to =E2=80=98./=
pre-inst-env valgrind
> guix-daemon=E2=80=99.

Did you manage to gather more info?

Thanks,
Ludo=E2=80=99.