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

Drew Parsons dparsons at debian.org
Wed Feb 4 11:53:15 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

britney ran a slepc4py test with liblapack-dev without openblas,
https://ci.debian.net/packages/s/slepc4py/testing/ppc64el/68373836/
so slepc4py has now migrated to testing.

So there's no urgent need to rush the new openblas version,
not for slepc4py at least.

It's curious that the passing slepc4py test did use openblas64 for the
64-bit tests, but passed anyway. Apparently the gesvd error is only
triggered in the standard (32-bit) build.



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