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Date:      Wed, 29 Sep 2010 18:42:28 +0300
From:      Vitaly Magerya <vmagerya@gmail.com>
To:        Chuck Swiger <cswiger@mac.com>
Cc:        freebsd-stable@freebsd.org
Subject:   Re: resume slow on Thinkpad T42 FreeBSD 8-STABLE
Message-ID:  <4CA35E64.1040101@gmail.com>
In-Reply-To: <04FA16F2-26AD-425D-9E4A-2A923219B73E@mac.com>
References:  <20100224165203.GA10423@zod.isi.edu> <20100927170317.I90633@sola.nimnet.asn.au> <4CA0E892.4010204@gmail.com> <201009271621.17669.jkim@FreeBSD.org> <4CA2488D.7000101@gmail.com> <04FA16F2-26AD-425D-9E4A-2A923219B73E@mac.com>

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Chuck Swiger wrote:
>>  MCA: Bank 1, Status 0xe2000000000001f5
>>  MCA: Global Cap 0x0000000000000005, Status 0x0000000000000000
>>  MCA: Vendor "GenuineIntel", ID 0x695, APIC ID 0
>>  MCA: CPU 0 UNCOR PCC OVER DCACHE L1 ??? error
> 
> That is very likely to be a matter of luck.  If I translate this MCA right,
> it looks to be an uncorrected error in L1 data cache on the CPU.  Try to run
> something like prime95's torture test mode and see whether it fails overnight....

The test run for 17 hours without any problems (or MCA messages), then I
put the laptop for a 5 minute sleep, resumed the test, and after 30
minutes of it there are now two MCA messages in dmesg. Are they somehow
related, or is this a coincidence?



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