Serhiy Storchaka added the comment:
I think there is no need to run the test in a subprocess. You can trigger the
crash by "del obj".
from collections import OrderedDict
obj = None
for _ in range(1000):
obj = OrderedDict([(None, obj)])
del obj
support.gc_collect()
Unfortunately this test is crashed with the patch.
Fatal Python error: Objects/odictobject.c:1443 object at 0xb749ddfc has
negative ref count -1
Current thread 0xb7580700 (most recent call first):
File "<stdin>", line 1 in <module>
Aborted (core dumped)
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue25395>
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