linux-kernel - RE: Testing RAM from userspace / question about memmap= arguments

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Date:	Sat, 22 Dec 2007 21:00:11 +0530
From:	"Richard D" <richard@...unus.com>
To:	"'Pavel Machek'" <pavel@....cz>
Cc:	"'Matthew Bloch'" <matthew@...emark.co.uk>,
	<linux-kernel@...r.kernel.org>
Subject: RE: Testing RAM from userspace / question about memmap= arguments

I was thinking that by the time userspace is ready, the memory that can be
tested will be less. 

-----Original Message-----
From: Pavel Machek [mailto:pavel@....cz] 
Sent: Saturday, December 22, 2007 7:16 PM
To: Richard D
Cc: 'Matthew Bloch'; linux-kernel@...r.kernel.org
Subject: Re: Testing RAM from userspace / question about memmap= arguments

On Sat 2007-12-22 13:42:47, Richard D wrote:
> Cant you, modify bootmem allocator to test with memtest patterns and then
> use kexec (as Pavel suggested) to test the one where kernel was sitting
> earlier?


I do not think you need to modify anything in kernel. Just use
/dev/mem to test areas that kernel doesn't see, then kexec into place
you already tested, and test the rest.
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures)
http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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