linux-kernel - Re: [Bug 11388] New: 2.6.27-rc3 warns about MTRR range; only 3 of 16gb of memory is usable

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Message-ID: <20080825214319.GC12156@hoblitt.com>
Date:	Mon, 25 Aug 2008 11:43:19 -1000
From:	Joshua Hoblitt <josh@...litt.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Yinghai Lu <yhlu.kernel@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	bugme-daemon@...zilla.kernel.org, linux-kernel@...r.kernel.org,
	j_kernel@...litt.com
Subject: Re: [Bug 11388] New: 2.6.27-rc3 warns about MTRR range; only 3 of
	16gb of memory is usable

I repulled/rebuilding the tip tree this morning.  I can confirm that the
show_msr patch is working and mtrr masking patch is now only printing a
single warning in the dmesg.  The dmesg is attached.

As per usual, the kernel folks provide the best support of any software
in history.  Thanks guys!

-J

--
On Fri, Aug 22, 2008 at 05:56:09AM +0200, Ingo Molnar wrote:
> 
> * Ingo Molnar <mingo@...e.hu> wrote:
> 
> > i've tidied up your patch (see the commit below) and have queued it up 
> > in x86/urgent. It seems fairly safe and i guess we can push it to 
> > v2.6.27 if Joshua reports test success. Joshua, could you give it a go 
> > please?
> 
> or just try the latest tip/master - please check whether you are getting 
> the right amount of RAM out of box plus this warning message:
> 
> > WARN_ON("mtrr: your BIOS has set up an incorrect mask, fixing it up.\n");
> 
> 	Ingo

View attachment "2.6.27-rc4-tip-00345-g8c8b7ed.dmesg" of type "text/plain" (57094 bytes)