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bpo-40533: Disable GC in subinterpreters (GH-19961)
When Python is built with experimental isolated interpreters, a garbage collection now does nothing in an isolated interpreter. Temporary workaround until subinterpreters stop sharing Python objects.
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@ -1181,6 +1181,14 @@ collect(PyThreadState *tstate, int generation,
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_PyTime_t t1 = 0; /* initialize to prevent a compiler warning */
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GCState *gcstate = &tstate->interp->gc;
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#ifdef EXPERIMENTAL_ISOLATED_SUBINTERPRETERS
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if (tstate->interp->config._isolated_interpreter) {
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// bpo-40533: The garbage collector must not be run on parallel on
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// Python objects shared by multiple interpreters.
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return 0;
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}
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#endif
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if (gcstate->debug & DEBUG_STATS) {
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PySys_WriteStderr("gc: collecting generation %d...\n", generation);
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show_stats_each_generations(gcstate);
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