Diffstat (limited to 'arch/x86/ras')
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/x86/ras/Kconfig b/arch/x86/ras/Kconfig
index 0bc60a308730..2a2d89d39af6 100644
@@ -7,3 +7,17 @@ config MCE_AMD_INJ
aspects of the MCE handling code.
WARNING: Do not even assume this interface is staying stable!
+ bool "Correctable Errors Collector"
+ depends on X86_MCE && MEMORY_FAILURE && DEBUG_FS
+ 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.