linux-kernel - Re: BUG: 1bbbbe7 (x86: Exclude E820_RESERVED regions...) PANIC on boot

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Message-ID: <5085B207.5010907@linux.intel.com>
Date:	Mon, 22 Oct 2012 13:52:23 -0700
From:	"H. Peter Anvin" <hpa@...ux.intel.com>
To:	Yinghai Lu <yinghai@...nel.org>
CC:	Jacob Shin <jacob.shin@....com>, Tom Rini <trini@...com>,
	hpa@...or.com,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"stable@...nel.org" <stable@...nel.org>
Subject: Re: BUG: 1bbbbe7 (x86: Exclude E820_RESERVED regions...) PANIC on
 boot

On 10/22/2012 01:50 PM, Yinghai Lu wrote:
> ok, let's see if we can meet this extreme corner case except user
> specify not page aligned "memmap="

If it is *only* memmap= there is a very simple solution: if the memmap
is RAM then we round up the starting address and round down the end
address; if the memmap is not RAM then we round up instead...

	-hpa

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