| What: /sys/devices/system/edac/mc/mc*/reset_counters |
| Date: April 2012 |
| Contact: Mauro Carvalho Chehab <mchehab@redhat.com> |
| linux-edac@vger.kernel.org |
| Description: This write-only control file will zero all the statistical |
| counters for UE and CE errors on the given memory controller. |
| Zeroing the counters will also reset the timer indicating how |
| long since the last counter were reset. This is useful for |
| computing errors/time. Since the counters are always reset |
| at driver initialization time, no module/kernel parameter |
| is available. |
| |
| What: /sys/devices/system/edac/mc/mc*/seconds_since_reset |
| Date: April 2012 |
| Contact: Mauro Carvalho Chehab <mchehab@redhat.com> |
| linux-edac@vger.kernel.org |
| Description: This attribute file displays how many seconds have elapsed |
| since the last counter reset. This can be used with the error |
| counters to measure error rates. |
| |
| What: /sys/devices/system/edac/mc/mc*/mc_name |
| Date: April 2012 |
| Contact: Mauro Carvalho Chehab <mchehab@redhat.com> |
| linux-edac@vger.kernel.org |
| Description: This attribute file displays the type of memory controller |
| that is being utilized. |
| |
| What: /sys/devices/system/edac/mc/mc*/size_mb |
| Date: April 2012 |
| Contact: Mauro Carvalho Chehab <mchehab@redhat.com> |
| linux-edac@vger.kernel.org |
| Description: This attribute file displays, in count of megabytes, of memory |
| that this memory controller manages. |
| |
| What: /sys/devices/system/edac/mc/mc*/ue_count |
| Date: April 2012 |
| Contact: Mauro Carvalho Chehab <mchehab@redhat.com> |
| linux-edac@vger.kernel.org |
| Description: This attribute file displays the total count of uncorrectable |
| errors that have occurred on this memory controller. If |
| panic_on_ue is set, this counter will not have a chance to |
| increment, since EDAC will panic the system |
| |
| What: /sys/devices/system/edac/mc/mc*/ue_noinfo_count |
| Date: April 2012 |
| Contact: Mauro Carvalho Chehab <mchehab@redhat.com> |
| linux-edac@vger.kernel.org |
| Description: This attribute file displays the number of UEs that have |
| occurred on this memory controller with no information as to |
| which DIMM slot is having errors. |
| |
| What: /sys/devices/system/edac/mc/mc*/ce_count |
| Date: April 2012 |
| Contact: Mauro Carvalho Chehab <mchehab@redhat.com> |
| linux-edac@vger.kernel.org |
| Description: This attribute file displays the total count of correctable |
| errors that have occurred on this memory controller. This |
| count is very important to examine. CEs provide early |
| indications that a DIMM is beginning to fail. This count |
| field should be monitored for non-zero values and report |
| such information to the system administrator. |
| |
| What: /sys/devices/system/edac/mc/mc*/ce_noinfo_count |
| Date: April 2012 |
| Contact: Mauro Carvalho Chehab <mchehab@redhat.com> |
| linux-edac@vger.kernel.org |
| Description: This attribute file displays the number of CEs that |
| have occurred on this memory controller wherewith no |
| information as to which DIMM slot is having errors. Memory is |
| handicapped, but operational, yet no information is available |
| to indicate which slot the failing memory is in. This count |
| field should be also be monitored for non-zero values. |
| |
| What: /sys/devices/system/edac/mc/mc*/sdram_scrub_rate |
| Date: April 2012 |
| Contact: Mauro Carvalho Chehab <mchehab@redhat.com> |
| linux-edac@vger.kernel.org |
| Description: Read/Write attribute file that controls memory scrubbing. |
| The scrubbing rate used by the memory controller is set by |
| writing a minimum bandwidth in bytes/sec to the attribute file. |
| The rate will be translated to an internal value that gives at |
| least the specified rate. |
| Reading the file will return the actual scrubbing rate employed. |
| If configuration fails or memory scrubbing is not implemented, |
| the value of the attribute file will be -1. |