Re: [BUG FIX] Make x86_32 uni-processor Atomic ops, Atomic

[Pavel Machek]

On Thu 2009-05-28 08:29:13, Michael S. Zick wrote:
> On Thu May 28 2009, Pavel Machek wrote:
> > Hi!
> > 
> > > The observation that executing an unnecessary 'lock' opcode in some
> > > cases slows down the machine is not felt by myself to be significant 
> > > to duplicating my observations.  Note: I have been wrong before.
> > > 
> > > This is as informative as I can make the message.
> > > 
> > > PS: *not* a single machine failure, tested on five machines, owned
> > > by four different people, two brands, with different use histories.
> > 
> > I have seen some problems on via c7m based machines, where some 'smart
> > bios person' implemented EC access in AML (normally, it is accessed
> > from ec.c driver). Maybe you have similary bad bios?
> > 
> 
> How to tell or distingush?
> Did your looking at the dmidecode output show you that?

Disassemble DSDT, and if you see strange code duplicating kernel's
ec.c driver, you have similar problem... 
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
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