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gh-129185: Fix PyTraceMalloc_Untrack() at Python exit (#129191)

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Support calling PyTraceMalloc_Track() and PyTraceMalloc_Untrack()
during late Python finalization.

* Call _PyTraceMalloc_Fini() later in Python finalization.
* Test also PyTraceMalloc_Untrack() without the GIL
* PyTraceMalloc_Untrack() now gets the GIL.
* Test also PyTraceMalloc_Untrack() in test_tracemalloc_track_race().
This commit is contained in:
Victor Stinner 2025-01-23 12:07:34 +01:00 • committed by GitHub
parent 225296cd5b
commit 46c7e13c05
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5 changed files with 75 additions and 11 deletions
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4
Python/pylifecycle.c
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@ -2113,7 +2113,7 @@ _Py_Finalize(_PyRuntimeState *runtime)
/* Disable tracemalloc after all Python objects have been destroyed,
so it is possible to use tracemalloc in objects destructor. */
_PyTraceMalloc_Fini();
_PyTraceMalloc_Stop();
/* Finalize any remaining import state */
// XXX Move these up to where finalize_modules() is currently.
@ -2166,6 +2166,8 @@ _Py_Finalize(_PyRuntimeState *runtime)
finalize_interp_clear(tstate);
_PyTraceMalloc_Fini();
#ifdef Py_TRACE_REFS
/* Display addresses (& refcnts) of all objects still alive.
* An address can be used to find the repr of the object, printed