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usr
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src
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linux-headers-5.15.0-181
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arch
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x86
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ras
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/usr/src/linux-headers-5.15.0-181/arch/x86/ras
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/usr/src/linux-headers-5.15.0-181/arch/x86/ras/Kconfig
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# 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.
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