linux-kernel - Re: 2.6.21-rc5-mm3 - no boot, "address not 2M aligned"

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Message-Id: <20070331232957.e1c93f19.akpm@linux-foundation.org>
Date:	Sat, 31 Mar 2007 23:29:57 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	ebiederm@...ssion.com (Eric W. Biederman)
Cc:	Jurriaan <thunder7@...all.nl>,
	Helge Hafting <helgehaf@...el.hist.no>,
	linux-kernel@...r.kernel.org, Vivek Goyal <vgoyal@...ibm.com>
Subject: Re: 2.6.21-rc5-mm3 - no boot, "address not 2M aligned"

On Sun, 01 Apr 2007 00:15:51 -0600 ebiederm@...ssion.com (Eric W. Biederman) wrote:

> Does anyone know how to express the constraint of a 2M aligned number in Kconfig?

Nope, but we could make CONFIG_PHYSICAL_START be in units of 2MB, which
would be a bit hard to use.

Adding a BUILD_BUG_ON which checks this constraint might help.  Plus a
useful comment right at the BUILD_BUG_ON site explaining what to do about
it.

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