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Bug 1939912 - python-numcodecs fails to build with Python 3.10: Fatal Python error: Segmentation fault
Summary: python-numcodecs fails to build with Python 3.10: Fatal Python error: Segmen...
Alias: None
Product: Fedora
Classification: Fedora
Component: python-numcodecs
Version: rawhide
Hardware: Unspecified
OS: Unspecified
Target Milestone: ---
Assignee: Elliott Sales de Andrade
QA Contact: Fedora Extras Quality Assurance
Depends On: 1939885
Blocks: PYTHON3.10
TreeView+ depends on / blocked
Reported: 2021-03-17 10:00 UTC by Tomáš Hrnčiar
Modified: 2021-03-18 14:11 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Last Closed: 2021-03-18 14:11:09 UTC
Type: Bug

Attachments (Terms of Use)

Description Tomáš Hrnčiar 2021-03-17 10:00:47 UTC
python-numcodecs fails to build with Python 3.10.0a6.

./tests/ ..                                             [ 93%]
../tests/ Fatal Python error: Segmentation fault

Current thread 0x00007fa6dd355740 (most recent call first):
<no Python frame>

Extension modules: numpy.core._multiarray_umath, numpy.core._multiarray_tests, numpy.linalg.lapack_lite, numpy.linalg._umath_linalg, numpy.fft._pocketfft_internal, numpy.random._common, numpy.random.bit_generator, numpy.random._bounded_integers, numpy.random._mt19937, numpy.random.mtrand, numpy.random._philox, numpy.random._pcg64, numpy.random._sfc64, numpy.random._generator, numcodecs.compat_ext, numcodecs.blosc, numcodecs.zstd, numcodecs.lz4, msgpack._cmsgpack, numcodecs.vlen (total: 20)
/var/tmp/rpm-tmp.blyhiv: line 39:   810 Segmentation fault      (core dumped) CFLAGS="${CFLAGS:-${RPM_OPT_FLAGS}}" LDFLAGS="${LDFLAGS:-${RPM_LD_FLAGS}}" PATH="/builddir/build/BUILDROOT/python-numcodecs-0.7.3-1.fc35.x86_64/usr/bin:$PATH" PYTHONPATH="${PYTHONPATH:-/builddir/build/BUILDROOT/python-numcodecs-0.7.3-1.fc35.x86_64/usr/lib64/python3.10/site-packages:/builddir/build/BUILDROOT/python-numcodecs-0.7.3-1.fc35.x86_64/usr/lib/python3.10/site-packages}" PYTHONDONTWRITEBYTECODE=1 /usr/bin/pytest --pyargs numcodecs
error: Bad exit status from /var/tmp/rpm-tmp.blyhiv (%check)

For the build logs, see:

For all our attempts to build python-numcodecs with Python 3.10, see:

Testing and mass rebuild of packages is happening in copr. You can follow these instructions to test locally in mock if your package builds with Python 3.10:

Let us know here if you have any questions.

Python 3.10 will be included in Fedora 35. To make that update smoother, we're building Fedora packages with early pre-releases of Python 3.10.
A build failure prevents us from testing all dependent packages (transitive [Build]Requires), so if this package is required a lot, it's important for us to get it fixed soon.
We'd appreciate help from the people who know this package best, but if you don't want to work on this now, let us know so we can try to work around it on our side.

Comment 1 Miro Hrončok 2021-03-18 14:11:09 UTC
This was a bug in Python. Tracked in bz1939885 and patched in Copr. Sorry for the noise.

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