Bug#1121516: scotch: test_common_thread CI test hangs on ppc64el

[Drew Parsons]

Package: scotch
Version: 7.0.10-2
Severity: important
X-Debbugs-Cc: debian-powerpc at lists.debian.org
User: debian-powerpc at lists.debian.org
Usertags: ppc64el
Control: forwarded -1 https://gitlab.inria.fr/scotch/scotch/-/issues/57
Control: tags -1 help

The test_common_thread test in scotch has started hanging on ppc64el.

Strangely, the test still passes at build time on the buildd.

The hang can be reproduced manually on the porterbox platti.

The problem has been reported upstream,
https://gitlab.inria.fr/scotch/scotch/-/issues/57

Help welcome.