[Zope] Re: Any known leaks in ExtFile and OpenFlow?

Hi all, One of my Zope (2.8.4 on Python 2.4.2, SLES9) sites constantly hits the memory limit. It makes heavy use of two products - ExtFile (1.5.0) and OpenFlow (1.1.0). ExtFile class (of ExtFile) and workitem class (of OpenFlow) are leading the refcount list with a not-constant but overall increasing numbers of references. Refcounts for both reach numbers that are incomparably higher than the numbers of their instances in ZoDB. I wanted to ask if there are known leaks in these products before going into (painful) hunting and debugging leaks in my own code. Thanks!