On Mon, Jan 12, 2009 at 11:03:10PM +0800, John Lepikhin wrote:
> 
> > > The only specific module is ocaml-fd (send file descriptors over pipes).
> > What version of OCaml is this?
> 
> 3.10.2.

Low level parts of the GC were rewritten in 3.11.  Well, the way that
it gets blocks of memory off the operating system anyhow ...

https://bugzilla.redhat.com/show_bug.cgi?id=445545#c9
http://caml.inria.fr/pub/ml-archives/caml-list/2008/05/9c24581520a98afa2e11185845b5458a.en.html

So maybe upgrading to 3.11 is an option for you?  I don't know whether
it will make a difference, but it's possible it will change the
behaviour and 3.11 is quite stable so it's unlikely to introduce any
regressions.

Rich.

-- 
Richard Jones
Red Hat