MCA messages in /var/log/message?

[Andriy Gapon]

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