Re: [RFC PATCH] C2 could be mapped to C3 so need a flush cache

[Arjan van de Ven]

On Tue, 8 Sep 2009 16:20:52 +0800
Luming Yu <luming.yu@xxxxxxxxx> wrote:

> > Do you have an example of a specific machine where this is fscked
> > up? (if so, it's blacklist worthy.. probably worth blacklisting just
> > outright doing C states on it)
> 
> Those boxes that have c2 lapic timer stop issue is supposed to need
> this patch. But I don't have such kind of system. So test and
> comments are needed by those who actually have such kind of box.

I find that highly unlikely; this software cache flush codepath hasn't
applied to any CPU sold in the last few years....


-- 
Arjan van de Ven 	Intel Open Source Technology Centre
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