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[3.13] gh-128717: Stop-the-world when setting the recursion limit (GH-128741) #128757

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Merged
kumaraditya303 merged 6 commits into from
Jan 14, 2025
Merged

[3.13] gh-128717: Stop-the-world when setting the recursion limit (GH-128741) #128757

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6337faf
Fix merge conflicts.
ZeroIntensity Jan 12, 2025
d3d3d5e
[3.13] gh-128717: Stop-the-world when setting the recursion limit (GH…
ZeroIntensity Jan 12, 2025
d93cc25
Use threading_helper.start_threads()
ZeroIntensity Jan 12, 2025
939308e
Swap catch_threading_exception() and start_threads()
ZeroIntensity Jan 13, 2025
c094349
HEAD_LOCK() the thread state list.
ZeroIntensity Jan 13, 2025
90be7d8
Fix usage of cm.exc_value
ZeroIntensity Jan 13, 2025
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HEAD_LOCK() the thread state list.
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@ZeroIntensity
ZeroIntensity committed Jan 13, 2025
commit c094349a30668daf473fecd1e2d16b5942a75986
2 changes: 2 additions & 0 deletions Python/ceval.c
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Original file line number Diff line number Diff line change
Expand Up @@ -266,12 +266,14 @@ Py_SetRecursionLimit(int new_limit)
{
PyInterpreterState *interp = _PyInterpreterState_GET();
_PyEval_StopTheWorld(interp);
HEAD_LOCK(interp->runtime);
interp->ceval.recursion_limit = new_limit;
for (PyThreadState *p = interp->threads.head; p != NULL; p = p->next) {
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int depth = p->py_recursion_limit - p->py_recursion_remaining;
p->py_recursion_limit = new_limit;
p->py_recursion_remaining = new_limit - depth;
}
HEAD_UNLOCK(interp->runtime);
_PyEval_StartTheWorld(interp);
}

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