Re: Bug#1121177: openblas breaks multiple autopkgtest on ppc64el

On 2026-01-02 00:34, Paul Gevers wrote:
> user [email protected]
> usertag 1121177 ppc64el
> thanks
> 
> Dear ppc64el porters,
> 
> On 11/25/25 15:41, Sébastien Villemot wrote:
> 
>> I talked to upstream about the problem (in an issue that was initially
>> about a FTBFS, due to a failure in OpenBLAS own testsuite, which has
>> since been fixed):
>> https://github.com/OpenMathLib/OpenBLAS/issues/5372#issuecomment-3353517450
>> 
>> Unfortunately upstream does not really know where the test failures in
>> third-party software come from. In particular, they can’t replicate 
>> the
>> issue (note that they tried with more recent git snapshot than version
>> 0.3.30), and I couldn’t either with Debian version 0.3.30+ds-3 (tried
>> on the ppc64el Debian porterbox).
>> 
>> At this point, fixing this issue is beyond my time budget and skills 
>> (I
>> know next to zero about PowerPC, and the issue is probably due to some
>> changes to PowerPC assembly code). CC’ing the Debian PowerPC porters,
>> with the hope that they can help.
> 
> 
> We're in dire need of your help, the issue is stalling openblas'
> migration to testing and because it's a key package, autoremoval
> doesn't work.
> 
> Paul



Thanks for the ping.

I’m currently reproducing the issue on the ppc64el side and 
investigating the root cause. Since openblas is a key package, this 
needs a proper fix rather than a workaround.

Let me go through the bug and I’ll update with findings.

Thanks,
Trupti