Re: Another question about self-paging

[Jonathan S. Shapiro]

On Mon, 2005-10-31 at 18:23 +0200, Paavo Parkkinen wrote:
> On Mon, 31.10.2005 at 17:14 +0100, Bas Wijnen wrote:
> > Process B can influence the state of the system and thus ensure that A gets
> > notified.  If A and B cooperate, they can use this as a communication 
> > channel.
> 
> Ah, ok. I didn't realize that communication between cooperating
> processes is also forbidden.

These processes are NOT cooperating within the sense of the security
policy. Imagine that A is a Trojan horse and B is a retransmission agent
that is outside of some security perimeter.

shap