package builds crashing under fakeroot

[Alastair McKinstry <mckinstry@debian.org>]

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

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