linux-kernel - RE: [RFC] Kdump and memory error handling

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Message-ID: <987664A83D2D224EAE907B061CE93D5301C53C9966@orsmsx505.amr.corp.intel.com>
Date:	Wed, 4 May 2011 13:02:25 -0700
From:	"Luck, Tony" <tony.luck@...el.com>
To:	"prasad@...ux.vnet.ibm.com" <prasad@...ux.vnet.ibm.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
CC:	Andi Kleen <andi@...stfloor.org>, Vivek Goyal <vgoyal@...hat.com>,
	"kexec@...ts.infradead.org" <kexec@...ts.infradead.org>,
	Srivatsa Vaddagiri <vatsa@...ibm.com>,
	Ananth N Mavinakayanahalli <ananth@...ibm.com>
Subject: RE: [RFC] Kdump and memory error handling

Your first suggestion of a "slim" dump makes the most sense. The
purpose of a crash dump is a research resource to find out why
the system crashed - but in the case of a machine check, we already
have the reasons for the crash captured by the machine check handler.

Perhaps you could include __log_buf[] in the slim crash dump? Assuming
that the machine check is not a result of an uncorrectable error
in this memory range.

-Tony
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