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-rw-r--r--Python/pystate.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/Python/pystate.c b/Python/pystate.c
index 1ac13440085..14ae2748b0b 100644
--- a/Python/pystate.c
+++ b/Python/pystate.c
@@ -1908,9 +1908,14 @@ tstate_delete_common(PyThreadState *tstate, int release_gil)
static void
zapthreads(PyInterpreterState *interp)
{
+ PyThreadState *tstate;
/* No need to lock the mutex here because this should only happen
- when the threads are all really dead (XXX famous last words). */
- _Py_FOR_EACH_TSTATE_UNLOCKED(interp, tstate) {
+ when the threads are all really dead (XXX famous last words).
+
+ Cannot use _Py_FOR_EACH_TSTATE_UNLOCKED because we are freeing
+ the thread states here.
+ */
+ while ((tstate = interp->threads.head) != NULL) {
tstate_verify_not_active(tstate);
tstate_delete_common(tstate, 0);
free_threadstate((_PyThreadStateImpl *)tstate);