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

From: Michael S. Zick
Date: Thu May 28 2009 - 09:29:30 EST


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?

Mike
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/