🚀 go-pugleaf

In article <1991May28.173139.8139@hyper.hyper.com> bonneau@hyper.hyper.com (Paul Bonneau) writes:

              Once we have win32 (now called Windows 4
   apparently) where an application will have a virtual address
   space of several gigabytes, wild writes will be much harder
   to detect.

   cheers - Paul Bonneau.

Quite the opposite, I think.  In Windows 3.0 all applications except
for DOS boxes share the same address space, thus allowing an
application to merrily overwrite any data, including Windows' itself.
With a full 386 addressing scheme, this becomes impossible.  By the
same token, a 32 bit virtual address space DOES NOT mean that all
addresses are valid.  You can only use memory that the operating
system gave you and none else.  Think about it: virtual memory is not
endless, either.  For a virtual address to be valid, the page must be
in RAM or stored in the swappping/paging device.  I doubt very many
machines have the luxury of being able to allocate 4 GB RAM/diskspace
for each task :-)

==pena
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Olli-Matti Penttinen <pena@brainware.fi> | "When in doubt, use brute force."
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