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…ythonGH-123052) Check that the current default heap is initialized in `_mi_os_get_aligned_hint` and `mi_os_claim_huge_pages`. The mimalloc function `_mi_os_get_aligned_hint` assumes that there is an initialized default heap. This is true for our main thread, but not for background threads. The problematic code path is usually called during initialization (i.e., `Py_Initialize`), but it may also be called if the program allocates large amounts of memory in total. The crash only affected the free-threaded build. (cherry picked from commit d061ffe) Co-authored-by: Sam Gross <[email protected]>
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Misc/NEWS.d/next/Core_and_Builtins/2024-08-15-19-28-43.gh-issue-123022.m3EF9E.rst
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Fix crash in free-threaded build when calling :c:func:`Py_Initialize` from | ||
a non-main thread. |
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