linux-kernel - crash dump memory reservation regression

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Message-ID: <65a23329-d843-4859-8b7b-430f12882492@zmail14.collab.prod.int.phx2.redhat.com>
Date:	Sun, 11 Mar 2012 23:00:40 -0400 (EDT)
From:	CAI Qian <caiqian@...hat.com>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Vivek Goyal <vgoyal@...hat.com>, "H. Peter Anvin" <hpa@...or.com>,
	linux-kernel@...r.kernel.org
Subject: crash dump memory reservation regression

commit 3661ca66a42e306aaf53246fb75aec1ea01be0f0
x86, memblock: Fix crashkernel allocation

introduced a regression that crashkernel=512M
according to bisecting will fail like this,

crashkernel reservation failed - No suitable area found.
The full dmesg can be found here.

http://people.redhat.com/qcai/dmesg.bad

CAI Qian
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