On Thu, Nov 24, 2011 at 2:11 AM, Dean S. Messing <deanm@xxxxxxxxxxxxx> wrote:
On Wed, 23 Nov 2011, Tom Horsley wrote:Thanks for the tip. I'll run it all night tonight.
> > Does this mean I have a memory module about to go out?
>
> When in doubt add a memtest boot menu entry and let it
> check out your memory for a few hours:
>
> http://www.memtest.org/
(This is my work machine and I'm on it now.)
Do you know what this message actually means?
It basically means memory error checking on a memory module along with a parity checking bit. It is calculated when one byte of memory is written and then again when it is read. If the parity has changed, then the memory has been changed.
Since you have a correctable error, it shouldn't be any problem with the memory module. Also, you can blacklist the edac module, afaik and let the BIOS do the error detection and correction.
Nov 23 11:39:50 <machine name> kernel: [54140.456113] EDAC MC0: CE row 1, channel 1, label "": (Branch=0 DRAM-Bank=2 RDWR=Read RAS=15602 CAS=460, CE Err=0x10000 (Correctable Patrol Data ECC))Dean
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