linux-kernel - Re: [PATCH] x86, kdump: Set crashkernel

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Message-ID: <513E41BD.3030003@zytor.com>
Date:	Mon, 11 Mar 2013 13:42:37 -0700
From:	"H. Peter Anvin" <hpa@...or.com>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
CC:	Vivek Goyal <vgoyal@...hat.com>, Yinghai Lu <yinghai@...nel.org>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...nel.org>,
	WANG Chao <chaowang@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] x86, kdump: Set crashkernel_low automatically

On 03/11/2013 01:38 PM, Eric W. Biederman wrote:
> 
> I totally makes sense to figure out how to load a kernel high.  I am not
> convinced kexec on panic is the best use of that ability.  I would argue
> that it might be better to figure out how to use a small memory
> foot-print and try to keep that foot-print from growing.
> 

I could not agree more with this.  The whole reason this is a problem is
because we are talking about hundreds of megabytes of crashkernel.  If
we can fix *that* problem, we are much better off.

	-hpa


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