set of DIMMs for channels 0 and 1.
-Within each of the 'mc','mcX' and 'csrowX' directories are several
+Within each of the 'mcX' and 'csrowX' directories are several
EDAC control and attribute files.
-
-============================================================================
-DIRECTORY 'mc'
-
-In directory 'mc' are EDAC system overall control and attribute files:
-
-
-Panic on UE control file:
-
- 'edac_mc_panic_on_ue'
-
- An uncorrectable error will cause a machine panic. This is usually
- desirable. It is a bad idea to continue when an uncorrectable error
- occurs - it is indeterminate what was uncorrected and the operating
- system context might be so mangled that continuing will lead to further
- corruption. If the kernel has MCE configured, then EDAC will never
- notice the UE.
-
- LOAD TIME: module/kernel parameter: panic_on_ue=[0|1]
-
- RUN TIME: echo "1" >/sys/devices/system/edac/mc/edac_mc_panic_on_ue
-
-
-Log UE control file:
-
- 'edac_mc_log_ue'
-
- Generate kernel messages describing uncorrectable errors. These errors
- are reported through the system message log system. UE statistics
- will be accumulated even when UE logging is disabled.
-
- LOAD TIME: module/kernel parameter: log_ue=[0|1]
-
- RUN TIME: echo "1" >/sys/devices/system/edac/mc/edac_mc_log_ue
-
-
-Log CE control file:
-
- 'edac_mc_log_ce'
-
- Generate kernel messages describing correctable errors. These
- errors are reported through the system message log system.
- CE statistics will be accumulated even when CE logging is disabled.
-
- LOAD TIME: module/kernel parameter: log_ce=[0|1]
-
- RUN TIME: echo "1" >/sys/devices/system/edac/mc/edac_mc_log_ce
-
-
-Polling period control file:
-
- 'edac_mc_poll_msec'
-
- The time period, in milliseconds, for polling for error information.
- Too small a value wastes resources. Too large a value might delay
- necessary handling of errors and might loose valuable information for
- locating the error. 1000 milliseconds (once each second) is the current
- default. Systems which require all the bandwidth they can get, may
- increase this.
-
- LOAD TIME: module/kernel parameter: poll_msec=[0|1]
-
- RUN TIME: echo "1000" >/sys/devices/system/edac/mc/edac_mc_poll_msec
-
-
============================================================================
'mcX' DIRECTORIES
'sdram_scrub_rate'
Read/Write attribute file that controls memory scrubbing. The scrubbing
- rate is set by writing a minimum bandwith in bytes/sec to the attribute
+ rate 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.
motherboard specific and determination of this information
must occur in userland at this time.
-
============================================================================
SYSTEM LOGGING
driver-specific error message.
-
============================================================================
PCI Bus Parity Detection
echo "0" >/sys/devices/system/edac/pci/check_pci_parity
+Parity Count:
+
+ 'pci_parity_count'
+
+ This attribute file will display the number of parity errors that
+ have been detected.
+
+
+============================================================================
+MODULE PARAMETERS
+
+Panic on UE control file:
+
+ 'edac_mc_panic_on_ue'
+
+ An uncorrectable error will cause a machine panic. This is usually
+ desirable. It is a bad idea to continue when an uncorrectable error
+ occurs - it is indeterminate what was uncorrected and the operating
+ system context might be so mangled that continuing will lead to further
+ corruption. If the kernel has MCE configured, then EDAC will never
+ notice the UE.
+
+ LOAD TIME: module/kernel parameter: edac_mc_panic_on_ue=[0|1]
+
+ RUN TIME: echo "1" > /sys/module/edac_core/parameters/edac_mc_panic_on_ue
+
+
+Log UE control file:
+
+ 'edac_mc_log_ue'
+
+ Generate kernel messages describing uncorrectable errors. These errors
+ are reported through the system message log system. UE statistics
+ will be accumulated even when UE logging is disabled.
+
+ LOAD TIME: module/kernel parameter: edac_mc_log_ue=[0|1]
+
+ RUN TIME: echo "1" > /sys/module/edac_core/parameters/edac_mc_log_ue
+
+
+Log CE control file:
+
+ 'edac_mc_log_ce'
+
+ Generate kernel messages describing correctable errors. These
+ errors are reported through the system message log system.
+ CE statistics will be accumulated even when CE logging is disabled.
+
+ LOAD TIME: module/kernel parameter: edac_mc_log_ce=[0|1]
+
+ RUN TIME: echo "1" > /sys/module/edac_core/parameters/edac_mc_log_ce
+
+
+Polling period control file:
+
+ 'edac_mc_poll_msec'
+
+ The time period, in milliseconds, for polling for error information.
+ Too small a value wastes resources. Too large a value might delay
+ necessary handling of errors and might loose valuable information for
+ locating the error. 1000 milliseconds (once each second) is the current
+ default. Systems which require all the bandwidth they can get, may
+ increase this.
+
+ LOAD TIME: module/kernel parameter: edac_mc_poll_msec=[0|1]
+
+ RUN TIME: echo "1000" > /sys/module/edac_core/parameters/edac_mc_poll_msec
+
Panic on PCI PARITY Error:
error has been detected.
- module/kernel parameter: panic_on_pci_parity=[0|1]
+ module/kernel parameter: edac_panic_on_pci_pe=[0|1]
Enable:
- echo "1" >/sys/devices/system/edac/pci/panic_on_pci_parity
+ echo "1" > /sys/module/edac_core/parameters/edac_panic_on_pci_pe
Disable:
- echo "0" >/sys/devices/system/edac/pci/panic_on_pci_parity
-
-
-Parity Count:
-
- 'pci_parity_count'
-
- This attribute file will display the number of parity errors that
- have been detected.
+ echo "0" > /sys/module/edac_core/parameters/edac_panic_on_pci_pe
git.openpandora.org / pandora-kernel.git / blobdiff