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ci: Test against Python 3.14 freethreaded build - #297
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Well, good to know it currently segfaults. |
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September 16, 2025 07:21
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Likely because it needs #295 |
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Good to know it's still segfaulting in the tests. test_ft_lifetime.py . [ 20%]
Fatal Python error: Segmentation fault
Current thread 0x00007f887207cb80 [python] (most recent call first):
File "/home/runner/work/semiwrap/semiwrap/tests/test_ft_misc.py", line 74 in test_buffers
...
Current thread's C stack trace (most recent call first):
Binary file "/opt/hostedtoolcache/Python/3.14.8/x64-freethreaded/lib/libpython3.14t.so.1.0", at _Py_DumpStack+0x47 [0x7f8871b5da4a]
Binary file "/opt/hostedtoolcache/Python/3.14.8/x64-freethreaded/lib/libpython3.14t.so.1.0", at +0x167357 [0x7f8871b67357]
Binary file "/lib/x86_64-linux-gnu/libc.so.6", at +0x45330 [0x7f8871645330]
Binary file "/opt/hostedtoolcache/Python/3.14.8/x64-freethreaded/lib/libpython3.14t.so.1.0", at +0x1b4fa4 [0x7f8871bb4fa4]
Binary file "/opt/hostedtoolcache/Python/3.14.8/x64-freethreaded/lib/python3.14t/site-packages/swtest/ft/_ft.cpython-314t-x86_64-linux-gnu.so", at +0x9272d [0x7f887029272d]
Binary file "/opt/hostedtoolcache/Python/3.14.8/x64-freethreaded/lib/python3.14t/site-packages/swtest/ft/_ft.cpython-314t-x86_64-linux-gnu.so", at +0x8fd34 [0x7f887028fd34]
Binary file "/opt/hostedtoolcache/Python/3.14.8/x64-freethreaded/lib/python3.14t/site-packages/swtest/ft/_ft.cpython-314t-x86_64-linux-gnu.so", at +0x77f20 [0x7f8870277f20]
Binary file "/opt/hostedtoolcache/Python/3.14.8/x64-freethreaded/lib/libpython3.14t.so.1.0", at PyObject_Vectorcall+0x56 [0x7f8871bbb756] |
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Probably needs a pybind11 upgrade? |
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The pybind11 3.0.0 release notes explicitly state 3.14t is supported though, and there doesn't seem to be anything relevant to this in pybind 3.1.0. Could give upgrading pybind11 a shot in this PR but it sounds like we've found a legitimate bug somewhere. |
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auscompgeek
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October 23, 2026 08:17
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🤔 if we test against a freethreaded CPython, do we need the |
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