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[3.13] gh-142048: Fix lost gc allocations count on thread cleanup (GH… (#142506)

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[3.13] gh-142048: Fix lost gc allocations count on thread cleanup (GH-142233)
(cherry picked from commit 49b1fb43f6)

Co-authored-by: Kevin Wang <kevmo314@gmail.com>
This commit is contained in:
Kumar Aditya 2025-12-11 15:07:38 +05:30 • committed by GitHub
parent 813bcffffc
commit fda856f368
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Python/pystate.c
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@ -1743,6 +1743,14 @@ PyThreadState_Clear(PyThreadState *tstate)
// Remove ourself from the biased reference counting table of threads.
_Py_brc_remove_thread(tstate);
// Flush the thread's local GC allocation count to the global count
// before the thread state is cleared, otherwise the count is lost.
_PyThreadStateImpl *tstate_impl = (_PyThreadStateImpl *)tstate;
_Py_atomic_add_int(&tstate->interp->gc.generations[0].count,
(int)tstate_impl->gc.alloc_count);
tstate_impl->gc.alloc_count = 0;
#endif
// Merge our queue of pointers to be freed into the interpreter queue.