Re: [2.6.17-rc5-mm2] crash when doing second suspend: BUG in arch/i386/kernel/nmi.c:174

[Jeremy Fitzhardinge]

Andrew Morton wrote:
> It all depends on what we mean by "per-cpu state".  If we were to remember
> that "CPU 7 needs 0x1234 in register 44" then that would be wrong.  But
> remembering some high-level functional thing like "CPU 7 needs to run the
> NMI watchdog" is fine.  The CPU bringup code can work out whether that is
> possible, and how to do it.
>
>   

But all the performance counter stuff is very model-specific. I don't 
think there's any abstraction which would allow us to say "CPU 7 is 
measuring branch misprediction stalls in pipeline 2" in any way other 
than "needs 0x1234 in register 44".

   J
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