linux-kernel - Re: [PATCH 3/3] Limit E820 map when a user-defined memory map is specified

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Message-ID: <20080622215635.7a0ebaae@kopernikus.site>
Date:	Sun, 22 Jun 2008 21:56:35 +0200
From:	Bernhard Walle <bwalle@...e.de>
To:	"Yinghai Lu" <yhlu.kernel@...il.com>
Cc:	x86@...nel.org, kexec@...ts.infradead.org,
	linux-kernel@...r.kernel.org, vgoyal@...hat.com
Subject: Re: [PATCH 3/3] Limit E820 map when a user-defined memory map is
 specified

* "Yinghai Lu" <yhlu.kernel@...il.com> [2008-06-20 13:34]:
> 
> any problem that you encountered without this patch?

Sorry, forgot to answer that question.

Yes, if you use mem=3G and take a dump, kexec builds the ELF core
headers for the full memory size, which means that the dump is as large
as the physical memory of the machine is, which doesn't make sense.



Bernhard
-- 
Bernhard Walle, SUSE LINUX Products GmbH, Architecture Development
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