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GH-95045: gc untrack _lsprof.Profiler before deallocating it (GH-95315)

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Automerge-Triggered-By: GH:pablogsal
(cherry picked from commit deacf391d7)

Co-authored-by: Kumar Aditya <59607654+kumaraditya303@users.noreply.github.com>
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Miss Islington (bot) 2022-07-27 05:37:43 -07:00 • committed by GitHub
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Misc/NEWS.d/next/Library/2022-07-27-11-35-45.gh-issue-95045.iysT-Q.rst Normal file
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@ -0,0 +1 @@
Fix GC crash when deallocating ``_lsprof.Profiler`` by untracking it before calling any callbacks. Patch by Kumar Aditya.

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Modules/_lsprof.c
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@ -747,6 +747,7 @@ profiler_traverse(ProfilerObject *op, visitproc visit, void *arg)
static void
profiler_dealloc(ProfilerObject *op)
{
PyObject_GC_UnTrack(op);
if (op->flags & POF_ENABLED) {
PyThreadState *tstate = _PyThreadState_GET();
if (_PyEval_SetProfile(tstate, NULL, NULL) < 0) {