search for: csrow

Hi List, I've been getting the following EDAC memory errors EDAC MC0: CE page 0xeb0dd, offset 0x0, grain 4096, syndrome 0x45, row 3, channel 0, label "": i82875p CE and from this seeing that these errors have been corrected. Checking cat /sys/devices/system/edac/mc/mc0/csrow3/ch0_ce_count gives me a count of 4 thus I now know that csrow3 - ch0 is the problem My question is, how does this map to the on board labels DIMM 1A DIMM 1B DIMM 2A DIMM 2B Am I correct in assuming csrow 3 is DIMM 2B? Also I have just discovered that both the OS drives sda and sdb have huge n...

...board on the left; but I can't identify which of the four (?) DIMMs on it is the problem. I've been googling, and skimming useless manuals, and have just been trying to look under /sys/devices/system/edac/mc/mc0/. I see ce_count there showing thousands; but all of the ce_count files under csrow[0-7] show zero. Clues, anyone? mark

...ackage: xen-hypervisor-4.4-amd64 Version: 4.4.1-9+deb8u3 Debian 8.2 installed on a supermicro H8SGL Board, AMD 6128 with 4x4GB ECC RAM. When booting the plain kernel (stock Jessie 3.16 or backport 4.1 or 4.3), both memory controllers (mc0 and mc1) appear under /sys/devices/system/edac/mc with two csrow* each as expected. Same happens, when booted with Xen 4.1.4-3+deb7u1. When booted with Xen 4.4.1, only mc1 with two RAM modules is visible, although all 16GB RAM is available in the OS (xl info).