>> There is a MAP_AUTOGROW which will increase the file size if the
>> mapping goes beyond the end of the file and if pages mapped beyond
>> the end of the file are touched.
> how is (in irix) defined maximum growth - as space in
> pagetable/address space must be reserved..

"if the mapping goes beyond the end of the file".  Sounds to me as
though the maximum growth is the size of the requested mapping.

/~\ The ASCII				der Mouse
\ / Ribbon Campaign
 X  Against HTML	       mouse@rodents.montreal.qc.ca
/ \ Email!	     7D C8 61 52 5D E7 2D 39  4E F1 31 3E E8 B3 27 4B