https://github.com/python/cpython/commit/3fa92e7c55d74aea062c4b32d895e84d7aaa3bce
commit: 3fa92e7c55d74aea062c4b32d895e84d7aaa3bce
branch: main
author: Donghee Na <[email protected]>
committer: corona10 <[email protected]>
date: 2026-06-18T20:58:12+09:00
summary:
gh-151229: Finalize JIT tracer in test eval-frame stub (gh-151609)
files:
M Modules/_testinternalcapi/interpreter.c
diff --git a/Modules/_testinternalcapi/interpreter.c
b/Modules/_testinternalcapi/interpreter.c
index 99dcd18393fb87..4afa028cd87527 100644
--- a/Modules/_testinternalcapi/interpreter.c
+++ b/Modules/_testinternalcapi/interpreter.c
@@ -18,8 +18,13 @@ int Test_EvalFrame_Resumes, Test_EvalFrame_Loads;
static int
stop_tracing_and_jit(PyThreadState *tstate, _PyInterpreterFrame *frame)
{
- (void)(tstate);
(void)(frame);
+ // Don't actually JIT-compile in this test eval-frame, but we still must
+ // finalize the tracer so the thread-global is_tracing flag is reset.
+ // Otherwise a trace started inside this duplicated interpreter loop
+ // (reachable under low JIT thresholds, e.g. PYTHON_JIT_STRESS=1) would
+ // leave is_tracing stuck true and permanently disable the JIT.
+ _PyJit_FinalizeTracing(tstate, 0);
return 0;
}
#endif
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