what does this message mean ?

[Hendry Sarumpaet]

Dear All,

I have a strange message found at our router.
here's the following one:


dummynet: heap_init, resize 32 failed
dummynet: sorry, cannot allocate queue for new flow
dummynet: sorry, cannot allocate queue for new flow
dummynet: sorry, cannot allocate queue for new flow
-------------------------------


after the messages arise, we didnt even able to add new ipfw  rule with new queue.
Is the there any tips or suggestion how to solved this kind of problem ? 



-- 
cheers
hsa