> I have written the code for two extra options to systrace that I
> think will help when systrace comes across less than usual situations.
> 
> They are:
> 
> Randomly cause system calls to fail.
>  * This can be used to explore code paths that may only be taken
>    rarely.  When used with automatic policy generation, this helps
>    the policy to converge on a programs actual behaviour.

You should learn about the ROC project going on at UCBerkeley/Stanford.
Part of that work is a tool for fault injection testing of systems.

	<http://roc.cs.berkeley.edu/>

Look for FIG on Pete Broadwell's page.

	Sam