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Message-ID: <86802c440807092357x293224bfh212665a164a41553@mail.gmail.com>
Date: Wed, 9 Jul 2008 23:57:40 -0700
From: "Yinghai Lu" <yhlu.kernel@gmail.com>
To: "Ingo Molnar" <mingo@elte.hu>
Subject: Re: [PATCh] x86: overmapped fix when 4K pages on tail - 64bit
Cc: "Thomas Gleixner" <tglx@linutronix.de>, "H. Peter Anvin" <hpa@zytor.com>,
       "Suresh Siddha" <suresh.b.siddha@intel.com>,
       LKML <linux-kernel@vger.kernel.org>,
       "Jeremy Fitzhardinge" <jeremy@goop.org>
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On Wed, Jul 9, 2008 at 11:53 PM, Ingo Molnar <mingo@elte.hu> wrote:
>
> * Yinghai Lu <yhlu.kernel@gmail.com> wrote:
>
>> fix phys_pmd_init to make sure not to return big value than end.
>>
>> also print out range split:1G/2M/4K
>
> applied to tip/x86/core, thanks Yinghai. Lets hope it all goes well,
> this is a rather scary change - but it's also fairly clean.
>
> perhaps add a comment to the limit of 5 of mapping ranges - to point out
> that the number of mapping ranges depends on our programming, not on any
> external factor. I.e. if anyone adds a new mapping range to the kernel
> for any purpose, it must be extended - but otherwise it cannot run out
> due to new hardware.

4k, 2M, 1G, 2M, 4k

some day will get 512g page?

YH