1 files changed, 7 insertions, 0 deletions
diff --git a/Python/frame.c b/Python/frame.c
index 05a8cffcb8a..96566de63a7 100644
--- a/Python/frame.c
+++ b/Python/frame.c
@@ -70,6 +70,13 @@ take_ownership(PyFrameObject *f, _PyInterpreterFrame *frame)
     frame = (_PyInterpreterFrame *)f->_f_frame_data;
     f->f_frame = frame;
     frame->owner = FRAME_OWNED_BY_FRAME_OBJECT;
+    if (_PyFrame_IsIncomplete(frame)) {
+        // This may be a newly-created generator or coroutine frame. Since it's
+        // dead anyways, just pretend that the first RESUME ran:
+        PyCodeObject *code = frame->f_code;
+        frame->prev_instr = _PyCode_CODE(code) + code->_co_firsttraceable;
+    }
+    assert(!_PyFrame_IsIncomplete(frame));
     assert(f->f_back == NULL);
     _PyInterpreterFrame *prev = frame->previous;
     while (prev && _PyFrame_IsIncomplete(prev)) {