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From: Ingo Molnar <mingo@elte.hu>
To: "Morten P.D. Stevens" <mstevens@win-professional.com>,
	Yinghai Lu <yinghai@kernel.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	"H. Peter Anvin" <hpa@zytor.com>,
	Arjan van de Ven <arjan@infradead.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: warning in arch/x86/kernel/cpu/mtrr/generic.c:400 with 2.6.29-rc3 on IBM x3400
Date: Tue, 10 Feb 2009 00:45:28 +0100	[thread overview]
Message-ID: <20090209234528.GA862@elte.hu> (raw)
In-Reply-To: <B4ED8DE8E195E84A872496A085BC07822F1D@exchange01.corp.win-professional.com>


* Morten P.D. Stevens <mstevens@win-professional.com> wrote:

> Hi,
> 
> Update:
> 
> the same issue with a linux 2.6.28.4 kernel.
> 
> [    0.000000] ------------[ cut here ]------------
> [    0.000000] WARNING: at arch/x86/kernel/cpu/mtrr/generic.c:404 generic_get_mtrr+0xdf/0x119()
> [    0.000000] mtrr: your BIOS has set up an incorrect mask, fixing it up.

buggy BIOS most likely. Had the kernel not fixed up the MTRRs you'd have
a very slow and unhappy system now.

	Ingo

  reply	other threads:[~2009-02-09 23:45 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-08  1:43 warning in arch/x86/kernel/cpu/mtrr/generic.c:400 with 2.6.29-rc3 on IBM x3400 Morten P.D. Stevens
2009-02-09 15:50 ` Morten P.D. Stevens
2009-02-09 23:45   ` Ingo Molnar [this message]
2009-02-10  0:25     ` AW: warning in arch/x86/kernel/cpu/mtrr/generic.c:400 with2.6.29-rc3 " Morten P.D. Stevens
2009-02-10  2:40     ` warning in arch/x86/kernel/cpu/mtrr/generic.c:400 with 2.6.29-rc3 " Yinghai Lu
2009-02-10 16:21       ` Morten P.D. Stevens
2009-02-10 18:52         ` Yinghai Lu
2009-02-10 20:34           ` Morten P.D. Stevens
2009-02-10 20:45             ` Yinghai Lu
2009-02-10 21:19               ` Morten P.D. Stevens
2009-02-11  5:06                 ` Yinghai Lu
2009-02-11 16:01                   ` Morten P.D. Stevens
2009-02-11 18:52                     ` Yinghai Lu
2009-03-29 16:03                       ` Morten P.D. Stevens
2009-03-29 19:17                         ` Yinghai Lu
2009-02-11 10:43       ` Ingo Molnar

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