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A large scale study of memory errors on Intel systems in data centers showed that aggressively taking pages with corrected errors offline is the best strategy of using corrected errors as a predictor of future uncorrected errors. Set the threshold to "2" on Intel systems. AMD guidance is that this is not necessary for their systems. Signed-off-by: Tony Luck <tony.luck@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Yazen Ghannam <yazen.ghannam@amd.com> Link: https://lore.kernel.org/r/20220607212015.175591-1-tony.luck@intel.com Link: https://lore.kernel.org/r/YulOZ/Eso0bwUcC4@agluck-desk3.sc.intel.com