Garbage Collector Problem

hi,
 
I'm new to sablevm and just arrived porting sablevm to a linux/arm9
based microcontroller and it runs!
now i run a test application that extensively creates new objects and
consumes lot of heap space.
when running this app on a linux/x86 system with a sun 1.4 vm, the used
memroy increases and from time to time is freed. i guess the gc does its
work in the background.
running the same app on my linux/arm9 system with sablevm causes the app
to crash after a while saying "out of memory". i enforce the gc to do
its work by periodically call System.gc(). when doing this, the problem
seems to be solved (at least after a 24h test run) -> the free memory on
the system remains more or less the same. but it's not satisfying.
so my question is: why does sablevm's gc not recognize the fatal out of
memory situation, when the free memory drifts to 0?
are there any options to set when starting the vm to affect the gc's
behaviour?
 
thanks for any help!
 
marco

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