diff options
Diffstat (limited to 'arch/x86/ras')
| -rw-r--r-- | arch/x86/ras/Kconfig | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/x86/ras/Kconfig b/arch/x86/ras/Kconfig new file mode 100644 index 000000000..7488c7154 --- /dev/null +++ b/arch/x86/ras/Kconfig @@ -0,0 +1,23 @@ +# SPDX-License-Identifier: GPL-2.0 +config RAS_CEC + bool "Correctable Errors Collector" + depends on X86_MCE && MEMORY_FAILURE && DEBUG_FS + help + This is a small cache which collects correctable memory errors per 4K + page PFN and counts their repeated occurrence. Once the counter for a + PFN overflows, we try to soft-offline that page as we take it to mean + that it has reached a relatively high error count and would probably + be best if we don't use it anymore. + + Bear in mind that this is absolutely useless if your platform doesn't + have ECC DIMMs and doesn't have DRAM ECC checking enabled in the BIOS. + +config RAS_CEC_DEBUG + bool "CEC debugging machinery" + default n + depends on RAS_CEC + help + Add extra files to (debugfs)/ras/cec to test the correctable error + collector feature. "pfn" is a writable file that allows user to + simulate an error in a particular page frame. "array" is a read-only + file that dumps out the current state of all pages logged so far. |