linux-kernel - Re: [PATCH 1/2] x86: mtrr_cleanup prepare to make gran

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Message-ID: <48E274F7.4080803@zytor.com>
Date:	Tue, 30 Sep 2008 11:50:31 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Yinghai Lu <yhlu.kernel@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] x86: mtrr_cleanup prepare to make gran_size to	less
 1M

Ingo Molnar wrote:
> * Ingo Molnar <mingo@...e.hu> wrote:
> 
>> * H. Peter Anvin <hpa@...or.com> wrote:
>>
>>> Applied series to tip:x86/mtrr, thanks!
>> tested them and pushed it out into tip/master.
> 
> btw., now that we've got wide enough exposure (a kernel release), could 
> we please flip around the default of CONFIG_MTRR_SANITIZER and make it 
> default-y? This feature should only produce a worse result if there's a 
> bug in that code, right?
> 

Yes.  Furthermore, right now the code has to be enabled *and* a kernel 
command line option has to be passed.  I suspect we eventually want to 
runtime-enable it by default, too.

	-hpa
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