[3.13] gh-125859: Fix crash when gc.get_objects is called during GC (GH-125882)
#125921
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…ythonGH-125882) This fixes a crash when `gc.get_objects()` or `gc.get_referrers()` is called during a GC in the free threading build. Switch to `_PyObjectStack` to avoid corrupting the `struct worklist` linked list maintained by the GC. Also, don't return objects that are frozen (`gc.freeze()`) or in the process of being collected to more closely match the behavior of the default build. (cherry picked from commit e545ead) Co-authored-by: Sam Gross <colesbury@gmail.com>
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This fixes a crash when
gc.get_objects()orgc.get_referrers()iscalled during a GC in the free threading build.
Switch to
_PyObjectStackto avoid corrupting thestruct worklistlinked list maintained by the GC. Also, don't return objects that are frozen
(
gc.freeze()) or in the process of being collected to more closely matchthe behavior of the default build.
(cherry picked from commit e545ead)
Co-authored-by: Sam Gross colesbury@gmail.com
gc.get_objectscan corrupt in-progress GC in free threading build #125859