linux-kernel - Re: oops/warning report for the week of November 26, 2008

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Message-ID: <492EE087.80708@linux.intel.com>
Date:	Thu, 27 Nov 2008 10:01:43 -0800
From:	Arjan van de Ven <arjan@...ux.intel.com>
To:	Ingo Molnar <mingo@...e.hu>
CC:	Yinghai Lu <yinghai@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	NetDev <netdev@...r.kernel.org>, x86@...nel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Theodore Ts'o <tytso@....edu>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	jesse Barnes <jbarnes@...tuousgeek.org>
Subject: Re: oops/warning report for the week of November 26, 2008

Ingo Molnar wrote:
> * Arjan van de Ven <arjan@...ux.intel.com> wrote:
> 
>> Rank 8: mtrr_trim_uncached_memory (warning)
>> 	Reported 227 times (619 total reports)
>> 	There is a high number of machines where our MTRR checks 
>> 	trigger. I suspect we are too picky in accepting the MTRR 
>> 	configuration.
> 
> the warning here means: "the BIOS messed up but we fixed it up for 
> you just fine".

I don't believe that right now.
we see so many of these, including many "there's no MTRRs at all",
that I am seriously suspecting that our code is just incorrect somehow
and triggering too much.

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