linux-kernel - Re: [PATCH] x86, mce: disable MCE if cpu has no MCE banks

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Message-ID: <4AE84AB6.7010808@linux.intel.com>
Date:	Wed, 28 Oct 2009 14:44:22 +0100
From:	Andi Kleen <ak@...ux.intel.com>
To:	Valdis.Kletnieks@...edu
CC:	Hidetoshi Seto <seto.hidetoshi@...fujitsu.com>,
	Mike Travis <travis@....com>,
	Roland Dreier <rdreier@...co.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...hat.com>,
	"H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
	x86@...nel.org
Subject: Re: [PATCH] x86, mce: disable MCE if cpu has no MCE banks

Valdis.Kletnieks@...edu wrote:
> On Wed, 28 Oct 2009 06:24:45 BST, Andi Kleen said:
> 
>>>>> mce: CPU supports 0 MCE banks
>> That message can be just removed I think. I don't see much value in it
>> because the value is in sysfs and when you see the CPU type you can easily
>> determine it anyways.
> 
> Maybe it should only print a message if it finds an unexpected number of banks?
> "Hey dood - we're on a Core3.5 and there should be 6 banks here, but the
> hardware says there's only 4. What's up with that?"

The kernel doesn't know what number of banks are expected, just humans do.

-Andi


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