Alan Cox <alan@lxorguk.ukuu.org.uk> said:
> > >a single fixed memory pool on a compartmented mode system or processes can
> > >signal across the security boundary using out of memory as indications.
> >
> > Only on overcommited systems.
>
> Wrong. Think about it
What they are talking about is a system with rigid limits: You ask for
160Mb RAM, you got it if <= your limit, if > limit, it is denied. This
means essentially static allocation of memory (even exact RAM + swap, so
you can't find out how much the machine is using ATM) to any and all
possible users, so you can only run out of your quota, not into system
limits. Boy, would _I_ like to have a machine like that for, say, a dozen
users @ 500Mb each (why skimp here?) and run it as Thompson and Ritchie
envisioned...
-- Dr. Horst H. von Brand mailto:vonbrand@inf.utfsm.cl Departamento de Informatica Fono: +56 32 654431 Universidad Tecnica Federico Santa Maria +56 32 654239 Casilla 110-V, Valparaiso, Chile Fax: +56 32 797513- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Fri Mar 31 2000 - 21:00:20 EST