Date: Fri, 23 Apr 2010 02:24:03 +0300 From: Andriy Gapon <avg@icyb.net.ua> To: Steve Kargl <sgk@troutmask.apl.washington.edu> Cc: freebsd-current@freebsd.org Subject: Re: MCA messages in /var/log/message? Message-ID: <4BD0DA93.5050109@icyb.net.ua> In-Reply-To: <20100422222834.GA93197@troutmask.apl.washington.edu> References: <20100422222834.GA93197@troutmask.apl.washington.edu>
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on 23/04/2010 01:28 Steve Kargl said the following: > How does one interpret the following MCA message? > > MCA: Bank 4, Status 0x945a4000d6080a13 > MCA: Global Cap 0x0000000000000105, Status 0x0000000000000000 > MCA: Vendor "AuthenticAMD", ID 0xf5a, APIC ID 0 > MCA: CPU 0 COR BUSLG Responder RD Memory > MCA: Address 0x70c42280 > MCA: Bank 4, Status 0x942140012a080813 > MCA: Global Cap 0x0000000000000105, Status 0x0000000000000000 > MCA: Vendor "AuthenticAMD", ID 0xf5a, APIC ID 1 > MCA: CPU 1 COR BUSLG Source RD Memory > MCA: Address 0x1b97ca578 > > It appears that these messages coincide with a 15 to 30 > second period where my USB mouse inexplicably loses a > large number of button clicks, (which is quite noticable > with firefox3). This very much looks like DRAM ECC error. You seem to have family Fh AMD processor, so I am not entirely sure. But for 10h processors BKDG table 80 (NB error signatures) definitely specifies that extended error code of 8 (in bits 20:16) means ECC error. -- Andriy Gapon
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