linux-kernel - Re: [PATCH] [1/8] CPA: Fix gbpages support in try_preserve_lage

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Date:	Mon, 11 Feb 2008 11:12:08 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	Thomas Gleixner <tglx@...utronix.de>
Cc:	Andi Kleen <ak@...e.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [1/8] CPA: Fix gbpages support in
	try_preserve_lage_page


* Thomas Gleixner <tglx@...utronix.de> wrote:

> On Mon, 11 Feb 2008, Andi Kleen wrote:
> 
> > Use correct page sizes and masks for GB pages in 
> > try_preserve_large_page()
> > 
> > This prevents a boot hang on a GB capable system with 
> > CONFIG_DIRECT_GBPAGES enabled.
> 
> Doh, yes. Applied.

btw., v2.6.25-rc1 is not affected by this. Gbpages support is a "still 
cooking" feature only available in x86.git#mm, destined for .26, and 
even there it's default disabled and only available on Barcelona class 
hardware. (Some of these bits are upstream already to make maintenance 
easier, but they are inactive code.)

	Ingo
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