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Re: Position paper

From: Pierre THIERRY
Subject: Re: Position paper
Date: Wed, 10 Jan 2007 23:36:54 +0100
User-agent: Mutt/1.5.13 (2006-08-11)

Scribit Neal H. Walfield dies 10/01/2007 hora 20:20:
> The application requests the schedule which the resource manager
> considers in light of the current policy configuration.  When it is
> not longer possible to meet the requested schedule, the resource
> manager will send the application a fault when it is next scheduled to
> run.

In the general case, isn't this an opportunity to create covert
channels? I had understood from previous discussions (here or on the
Coyotos list) that application should in general not be aware of
system-wide information such as memory pressure because of this issue.

Of course, I understand there are exceptions. I'm happy that my video
player is able to detect how much frames it drops because of scheduling
difficulties, and suggest me to solve the external problem while it
stops to play.

OpenPGP 0xD9D50D8A

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