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edac: core fix redundant sysfs controls to parameters
/sys/devices/system/edac/mc has a few files which are duplicated in /sys/module/edac_core/parameters. Now that all the functionality is duplicated between these two locations, we remove the former kobject attributes and update the documentation. Signed-off-by: Arthur Jones <[email protected]> Signed-off-by: Doug Thompson <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Arthur Jones
Linus Torvalds
parent
096846e2b0
commit
327dafb1c6
2 changed files with 73 additions and 195 deletions
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@ -222,74 +222,9 @@ both csrow2 and csrow3 are populated, this indicates a dual ranked
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set of DIMMs for channels 0 and 1.
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Within each of the 'mc','mcX' and 'csrowX' directories are several
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Within each of the 'mcX' and 'csrowX' directories are several
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EDAC control and attribute files.
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============================================================================
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DIRECTORY 'mc'
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In directory 'mc' are EDAC system overall control and attribute files:
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Panic on UE control file:
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'edac_mc_panic_on_ue'
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An uncorrectable error will cause a machine panic. This is usually
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desirable. It is a bad idea to continue when an uncorrectable error
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occurs - it is indeterminate what was uncorrected and the operating
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system context might be so mangled that continuing will lead to further
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corruption. If the kernel has MCE configured, then EDAC will never
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notice the UE.
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LOAD TIME: module/kernel parameter: panic_on_ue=[0|1]
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RUN TIME: echo "1" >/sys/devices/system/edac/mc/edac_mc_panic_on_ue
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Log UE control file:
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'edac_mc_log_ue'
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Generate kernel messages describing uncorrectable errors. These errors
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are reported through the system message log system. UE statistics
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will be accumulated even when UE logging is disabled.
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LOAD TIME: module/kernel parameter: log_ue=[0|1]
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RUN TIME: echo "1" >/sys/devices/system/edac/mc/edac_mc_log_ue
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Log CE control file:
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'edac_mc_log_ce'
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Generate kernel messages describing correctable errors. These
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errors are reported through the system message log system.
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CE statistics will be accumulated even when CE logging is disabled.
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LOAD TIME: module/kernel parameter: log_ce=[0|1]
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RUN TIME: echo "1" >/sys/devices/system/edac/mc/edac_mc_log_ce
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Polling period control file:
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'edac_mc_poll_msec'
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The time period, in milliseconds, for polling for error information.
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Too small a value wastes resources. Too large a value might delay
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necessary handling of errors and might loose valuable information for
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locating the error. 1000 milliseconds (once each second) is the current
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default. Systems which require all the bandwidth they can get, may
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increase this.
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LOAD TIME: module/kernel parameter: poll_msec=[0|1]
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RUN TIME: echo "1000" >/sys/devices/system/edac/mc/edac_mc_poll_msec
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============================================================================
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'mcX' DIRECTORIES
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@ -537,7 +472,6 @@ Channel 1 DIMM Label control file:
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motherboard specific and determination of this information
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must occur in userland at this time.
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============================================================================
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SYSTEM LOGGING
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@ -570,7 +504,6 @@ error type, a notice of "no info" and then an optional,
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driver-specific error message.
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============================================================================
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PCI Bus Parity Detection
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@ -604,6 +537,74 @@ Enable/Disable PCI Parity checking control file:
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echo "0" >/sys/devices/system/edac/pci/check_pci_parity
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Parity Count:
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'pci_parity_count'
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This attribute file will display the number of parity errors that
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have been detected.
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============================================================================
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MODULE PARAMETERS
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Panic on UE control file:
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'edac_mc_panic_on_ue'
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An uncorrectable error will cause a machine panic. This is usually
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desirable. It is a bad idea to continue when an uncorrectable error
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occurs - it is indeterminate what was uncorrected and the operating
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system context might be so mangled that continuing will lead to further
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corruption. If the kernel has MCE configured, then EDAC will never
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notice the UE.
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LOAD TIME: module/kernel parameter: edac_mc_panic_on_ue=[0|1]
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RUN TIME: echo "1" > /sys/module/edac_core/parameters/edac_mc_panic_on_ue
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Log UE control file:
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'edac_mc_log_ue'
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Generate kernel messages describing uncorrectable errors. These errors
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are reported through the system message log system. UE statistics
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will be accumulated even when UE logging is disabled.
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LOAD TIME: module/kernel parameter: edac_mc_log_ue=[0|1]
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RUN TIME: echo "1" > /sys/module/edac_core/parameters/edac_mc_log_ue
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Log CE control file:
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'edac_mc_log_ce'
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Generate kernel messages describing correctable errors. These
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errors are reported through the system message log system.
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CE statistics will be accumulated even when CE logging is disabled.
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LOAD TIME: module/kernel parameter: edac_mc_log_ce=[0|1]
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RUN TIME: echo "1" > /sys/module/edac_core/parameters/edac_mc_log_ce
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Polling period control file:
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'edac_mc_poll_msec'
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The time period, in milliseconds, for polling for error information.
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Too small a value wastes resources. Too large a value might delay
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necessary handling of errors and might loose valuable information for
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locating the error. 1000 milliseconds (once each second) is the current
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default. Systems which require all the bandwidth they can get, may
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increase this.
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LOAD TIME: module/kernel parameter: edac_mc_poll_msec=[0|1]
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RUN TIME: echo "1000" > /sys/module/edac_core/parameters/edac_mc_poll_msec
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Panic on PCI PARITY Error:
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@ -614,21 +615,13 @@ Panic on PCI PARITY Error:
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error has been detected.
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module/kernel parameter: panic_on_pci_parity=[0|1]
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module/kernel parameter: edac_panic_on_pci_pe=[0|1]
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Enable:
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echo "1" >/sys/devices/system/edac/pci/panic_on_pci_parity
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echo "1" > /sys/module/edac_core/parameters/edac_panic_on_pci_pe
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Disable:
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echo "0" >/sys/devices/system/edac/pci/panic_on_pci_parity
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Parity Count:
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'pci_parity_count'
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This attribute file will display the number of parity errors that
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have been detected.
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echo "0" > /sys/module/edac_core/parameters/edac_panic_on_pci_pe
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