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Date: Tue, 24 Aug 2010 02:47:30 +0300
From: Andriy Gapon <avg@icyb.net.ua>
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To: Dan Langille <dan@langille.org>
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Cc: freebsd-stable <freebsd-stable@freebsd.org>
Subject: Re: kernel MCA messages
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on 24/08/2010 02:43 Dan Langille said the following:
> On 8/22/2010 10:05 PM, Dan Langille wrote:
>> On 8/22/2010 9:18 PM, Dan Langille wrote:
>>> What does this mean?
>>>
>>> kernel: MCA: Bank 4, Status 0x940c4001fe080813
>>> kernel: MCA: Global Cap 0x0000000000000105, Status 0x0000000000000000
>>> kernel: MCA: Vendor "AuthenticAMD", ID 0xf5a, APIC ID 0
>>> kernel: MCA: CPU 0 COR BUSLG Source RD Memory
>>> kernel: MCA: Address 0x7ff6b0
>>>
>>> FreeBSD 7.3-STABLE #1: Sun Aug 22 23:16:43
>>
>> And another one:
>>
>> kernel: MCA: Bank 4, Status 0x9459c0014a080813
>> kernel: MCA: Global Cap 0x0000000000000105, Status 0x0000000000000000
>> kernel: MCA: Vendor "AuthenticAMD", ID 0xf5a, APIC ID 0
>> kernel: MCA: CPU 0 COR BUSLG Source RD Memory
>> kernel: MCA: Address 0x7ff670
> 
> kernel: MCA: Bank 4, Status 0x947ec000d8080a13
> kernel: MCA: Global Cap 0x0000000000000105, Status 0x0000000000000000
> kernel: MCA: Vendor "AuthenticAMD", ID 0xf5a, APIC ID 0
> kernel: MCA: CPU 0 COR BUSLG Responder RD Memory
> kernel: MCA: Address 0xbfa9930
> 
> Another one.
> 
> These errors started appearing after upgrading to 8.1-STABLE from 7.2..
> something.  I suspect the functionality was added about then

Please strop the flood :-)
Depending on hardware there could be hundreds of such errors per day.
Either replace memory modules or learn to live with these messages.

-- 
Andriy Gapon