> Alan (Cox),  Martin is right.  The DIAG interface is complicated
> and varies from one DIAG code to the next and requires "guest real"
> addressing,  which for Linux is kernel space.   (And since CMS
> has a flat addressing model,  it can use pretty much any DIAG
> function without pointer pains like Linux would suffer from.)

Rick, 
I agree with Martin that its not feasible to support a diag
pass-through.  I have also seen your list of diagnoses which you 
consider interesting. In most cases I have no idea, why do you
need this diagnose in Linux. So lets go one step further and
find out:

"What problems or scenarios do we want to solve WITHIN linux?"

If we agree on the problem, we can then think about the solution
and the appropriate abstraction. 



-- 
Mit freundlichen Grüßen / Best Regards / Un cordial saludo

Christian Bornträger
Linux Software Engineer
zSeries Linux & Virtualization
IBM Deutschland Entwicklung GmbH
email: [EMAIL PROTECTED]
Tel +49  7031 16 1975

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