Bug#1126688: openblas causes slepc4py test failure on ppc64el: Error in LAPACK subroutine gesvd: info=127

Drew Parsons dparsons at debian.org
Fri Feb 13 09:31:44 GMT 2026


Source: openblas
Followup-For: Bug #1126688
X-Debbugs-Cc: debian-powerpc at lists.debian.org
User: debian-powerpc at lists.debian.org
Usertags: ppc64el

I tested openblas 0.3.31 from experimental on the debian porterbox.
Good news is slepc4py passes tests with it.
"Bad" news is slepc4py also passes tests with 0.3.30 on the porterbox.
Looks like it's a tricky bug to reproduce, perhaps it depends on which
POWERPC its running on.

I tried getting debci to run the tests, but it's not set up to force
installation of alternative packages, so doesn't actually install
openblas for the test. I filed Bug#1126997 about that,
They can probably add the feature soon.

Anyway from slepc4py's perspective openblas 0.3.31 is ready for
unstable. It won't make things worse, at least.



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