Object leak?

[Skye Poier Nott]

I installed Munin to start keeping track of various Varnish stat and  
in my test configuration which keeps requesting the same ~4,000 small  
objects over and over, I notice that the Varnish object count keeps  
climbing steadily, at a rate of about 5,000 more objects every 10  
hours.  VM alloc stays constant.

How can I debug this issue?  (using -trunk)
Maybe its just a varnishstat bug...

Thanks,
Skye