Issue #14432: Remove the thread state field from the frame structure. Fix a
crash when a generator is created in a C thread that is destroyed while the
generator is still used. The issue was that a generator contains a frame, and
the frame kept a reference to the Python state of the destroyed C thread. The
crash occurs when a trace function is setup.
diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py
index 9b11f58..177b92e 100644
--- a/Lib/test/test_sys.py
+++ b/Lib/test/test_sys.py
@@ -818,7 +818,7 @@
nfrees = len(x.f_code.co_freevars)
extras = x.f_code.co_stacksize + x.f_code.co_nlocals +\
ncells + nfrees - 1
- check(x, vsize('13P3ic' + CO_MAXBLOCKS*'3i' + 'P' + extras*'P'))
+ check(x, vsize('12P3ic' + CO_MAXBLOCKS*'3i' + 'P' + extras*'P'))
# function
def func(): pass
check(func, size('12P'))