Re: Fixing MTRR smp breakage and suspending sysdevs.

[Dmitry Torokhov]

On Tuesday 26 October 2004 09:48 pm, Li, Shaohua wrote:
> >One thing I have noticed is that by adding the sysdev suspend/resume
> >calls, I've gained a few seconds delay. I'll see if I can track down
> the
> >cause.
> Is the problem MTRR resume must be with IRQ enabled, right? Could we
> implement a method sysdev resume with IRQ enabled?

If I understand correctly the point of classifying device as sysdev is
that it (device) is essential for the system and must be suspended last
and resumed first, presumably with interrupts off. IRQ controller comes
to mind...
 
-- 
Dmitry
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