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: <86802c440808210839u452d9440kd7d12694db515411@mail.gmail.com>
Date:	Thu, 21 Aug 2008 08:39:59 -0700
From:	"Yinghai Lu" <yhlu.kernel@...il.com>
To:	"Ingo Molnar" <mingo@...e.hu>
Cc:	"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

On Thu, Aug 21, 2008 at 4:56 AM, Ingo Molnar <mingo@...e.hu> wrote:
>
> * Ingo Molnar <mingo@...e.hu> wrote:
>
>>
>> * Yinghai Lu <yhlu.kernel@...il.com> wrote:
>>
>> > [PATCH] x86_64: printout msr
>>
>> looks rather useful - added it to tip/x86/debug.
>
> fails to build with the attached config:
>
> arch/x86/kernel/cpu/common_64.c: In function 'print_cpu_msr':
> arch/x86/kernel/cpu/common_64.c:456: error: implicit declaration of function 'rdmsrl_amd_safe'
> arch/x86/kernel/cpu/common_64.c: In function 'print_cpu_info':
> arch/x86/kernel/cpu/common_64.c:486: error: 'struct cpuinfo_x86' has no member named 'cpu_index'
>
> i realize that this wasnt sent for inclusion, but i think it would make
> sense to tidy it up and integrate it.

that was one tool to verify if BIOS does right thing about some special bits.

it seems it doesn't compile when xen etc is enable in config.

YH
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