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From: Daniel Phillips <phillips@bonn-fries.net>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>, ian@ianduggan.net (Ian Duggan)
Subject: Re: 2.4.18 Preempt Freezeups
Date: Sun, 17 Mar 2002 00:51:27 +0100
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Cc: alan@lxorguk.ukuu.org.uk (Alan Cox), rml@tech9.net (Robert Love),
        linux-kernel@vger.kernel.org (linux kernel)
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On March 15, 2002 03:28 pm, Alan Cox wrote:
> > What is required for preempt beyond "SMP safe" code? I thought the whole
> > idea was to make the preemptions transparent to other code by utilizing
> > the SMP critical regions?
> 
> SMP safe code
> Actual source code when recompiling modules
> Reviewing things like driver code use of disable_irq by hand
> Reviewing driver code for situations where it requires a small timing delay
> 	and a large one is unacceptable

Has anyone found one of those yet?

> Checking anywhere you use the cpu id that you don't do somthing where it
> 	might change under you (eg per cpu variables)

Is per-cpu data the whole list there?

-- 
Daniel
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