Date: Thu, 22 Apr 2010 16:50:46 -0700 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: Andriy Gapon <avg@icyb.net.ua> Cc: freebsd-current@freebsd.org Subject: Re: MCA messages in /var/log/message? Message-ID: <20100422235046.GA1664@troutmask.apl.washington.edu> In-Reply-To: <4BD0DA93.5050109@icyb.net.ua> References: <20100422222834.GA93197@troutmask.apl.washington.edu> <4BD0DA93.5050109@icyb.net.ua>
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On Fri, Apr 23, 2010 at 02:24:03AM +0300, Andriy Gapon wrote: > 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. > Thanks for the information. The system that generates these messages is getting long in the tooth. Guess it's time to reboot and run memtest86+ on the system. -- Steve
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