linux-kernel - Re: [PATCH] x86: not overmap than end in init_memory_mapping

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Message-ID: <20080709084600.GA4919@elte.hu>
Date:	Wed, 9 Jul 2008 10:46:00 +0200
From:	Ingo Molnar <mingo@...e.hu>
To:	Yinghai Lu <yhlu.kernel@...il.com>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] x86: not overmap than end in init_memory_mapping -
	64bit


* Yinghai Lu <yhlu.kernel@...il.com> wrote:

> > reverting the commit solves the crash. The crash seems to be because 
> > ACPI is unable to access that memory range. (perhaps early_ioremap 
> > fails?)
> 
> system with less than 4g?

yeah.

> please test attached patch
> [PATCH] x86: make max_pfn cover acpi table below 4g

that fixed it, thanks.

	Ingo
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