linux-kernel - Re: [PATCH] x86: fixed mtrr change WP to WB

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Message-ID: <86802c440805061205lf312e02jb44318e97212d4e1@mail.gmail.com>
Date:	Tue, 6 May 2008 12:05:27 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"H. Peter Anvin" <hpa@...or.com>
Cc:	"Ingo Molnar" <mingo@...e.hu>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"Andrew Morton" <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86: fixed mtrr change WP to WB

On Tue, May 6, 2008 at 11:43 AM, H. Peter Anvin <hpa@...or.com> wrote:
> Yinghai Lu wrote:
>
> >
> >
> > >  Obviously, if you have already modified a table, you should save a
> pointer
> > > to it, and not rely on the kernel scanning later.
> > >
> >
> > that modified mptable is for second kernel that is kexeced.
> >
> >
>
>  Then you would have to add a method to pass it into the kernel if you want
> it to be generally useful.

but how about old stock kernel in RHEL3U9?

YH
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