linux-kernel - Re: bugreport kernel panic on early stage, with HIGHMEM4G:

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Message-ID: <20080117122632.GA14011@csn.ul.ie>
Date:	Thu, 17 Jan 2008 12:26:33 +0000
From:	Mel Gorman <mel@....ul.ie>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Denys Fedoryshchenko <denys@...p.net.lb>,
	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: bugreport kernel panic on early stage, with HIGHMEM4G:

On (15/01/08 14:13), Ingo Molnar didst pronounce:
> 
> * Ingo Molnar <mingo@...e.hu> wrote:
> 
> > thanks for the detailed report, i think i know what's going on. Could 
> > you try the patch below, does it fix your problem?
> 
> find below the fix with a more complete changelog and with no debugging 
> printouts.
> 

Looks good and the right thing to do. If you check the equivilant code for
DISCONTIG, it calls pfn_valid() searching for holes so it was expected.

Acked-by: Mel Gorman <mel@....ul.ie>

-- 
Mel Gorman
Part-time Phd Student                          Linux Technology Center
University of Limerick                         IBM Dublin Software Lab
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