On Monday 03 April 2006 10:21 am, Roger Heflin wrote: > > -----Original Message----- > > From: fedora-list-bounces@xxxxxxxxxx > > [mailto:fedora-list-bounces@xxxxxxxxxx] On Behalf Of Steve Snyder > > Sent: Sunday, April 02, 2006 6:54 AM > > To: fedora-list@xxxxxxxxxx > > Subject: Got my first EDAC error today > > > > Got my first error report from the shiny-new EDAC driver > > today. A kWriteD window popped up and displayed: > > > > EDAC MC0: UE page 0x2c, offset 0x0, grain 4096, row 0, labels > > "": i82860 UE > > > > Great. Now where do I find how to interpret these error reports? > > Some questions: > > Does your system have ECC ram? If you don't have ECC and/or your > chipset is not supported EDAC will pretty much only check PCI parity. > Given that it is reporting i82860 I would guess that your chipset is > supported, and that it believes that you have ECC> Yes, I do have ECC RAM, and the BIOS is configured to use it for error correction. Specifically, I have 2 sticks of 512MB dual-channel PC800 RDRAM. > UE means uncorrectable error which means that more than 1 bit was > messed up in your memory, generally you won't get these without getting > lots of single big (CE) errors. Well, it is possible I've been getting single-bit errors and didn't know it. Still, though, I would have expected uncorrectable RAM errors to have crashed my machine, or at least generated alarming system errors, in the past. Instead this machine has been rock-solid stable in the 3 years I've had it, and I've been using the same RAM thoughout that period. Certainly, RAM can go bad, but the lack of "unexplained" lockups makes me a little skeptical that frequent uncorrectable RAM errors are occurring on a regular basis. > You can check /proc/mc/0 that may give you better information, where > the "" is is supposed to be a label to the dimm location on the > motherboard, no one has yet mapped the locations that will be listed to > actual locations on most motherboards. Actually, I can't check that: $ ll /proc/mc* ls: /proc/mc*: No such file or directory $ ll /proc/edac* ls: /proc/edac*: No such file or directory The EDAC info doesn't seem to be brought out to the /proc filesystem, at least not in the kernel-smp-2.6.16-1.2069_FC4 that I'm running. Thanks for the response.
