[Pkg-openmpi-maintainers] Bug#839387: package builds crashing under fakeroot

[Alastair McKinstry]

Hi,

In OpenMPI 2.0, Michael Banck discovered that some of the packages that
failed were doing so as openmpi no longer works under fakeroot.

Upstream (Gilles Gouaillaerdet) point out:

    from |validate_cred| in
    |opal/mca/pmix/pmix112/pmix/src/sec/pmix_native.c|

    |getsockopt (peer->sd, SOL_SOCKET, SO_PEERCRED, &ucred, &crlen);|

    my understanding is that |fakeroot| tricks the processes into
    believing they are ran as |root|,
    as such, |orted| expects a connection from |root| (e.g. |ucred.uid|
    is |0|)
    /* in singleton mode, an |orted| is fork&exec'ed under the hood */

    but |fakeroot| cannot trick |getsockopt|, which returns the user
    (non zero)

So its a legitimate tightening of credential-checking in pmix. However
it causes problems for us running tests under binary-arch.

What do DDs think should be done about this - move all tests outside
binary-arch?

regards
Alastair

-- 
Alastair McKinstry, <alastair at sceal.ie>, <mckinstry at debian.org>, https://diaspora.sceal.ie/u/amckinstry
Misentropy: doubting that the Universe is becoming more disordered. 

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