linux-kernel - RE: [PATCH V3] ia64/mm: fix a bad_page bug when crash kernel booting

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Message-ID: <3908561D78D1C84285E8C5FCA982C28F1E06A8F1@ORSMSX108.amr.corp.intel.com>
Date:	Tue, 19 Feb 2013 21:38:52 +0000
From:	"Luck, Tony" <tony.luck@...el.com>
To:	Xishi Qiu <qiuxishi@...wei.com>
CC:	"Fleming, Matt" <matt.fleming@...el.com>,
	"Yu, Fenghua" <fenghua.yu@...el.com>,
	Liujiang <jiang.liu@...wei.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-ia64@...r.kernel.org" <linux-ia64@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-efi@...r.kernel.org" <linux-efi@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	Hanjun Guo <guohanjun@...wei.com>,
	WuJianguo <wujianguo@...wei.com>
Subject: RE: [PATCH V3] ia64/mm: fix a bad_page bug when crash kernel booting

> In efi_init() memory aligns in IA64_GRANULE_SIZE(16M). If set "crashkernel=1024M-:600M"

Is this where the real problem begins?  Should we insist that users provide crashkernel
parameters rounded to GRANULE boundaries?

-Tony