.. | .. |
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2 | 2 | config RAS_CEC |
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3 | 3 | bool "Correctable Errors Collector" |
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4 | 4 | depends on X86_MCE && MEMORY_FAILURE && DEBUG_FS |
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5 | | - ---help--- |
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| 5 | + help |
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6 | 6 | This is a small cache which collects correctable memory errors per 4K |
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7 | 7 | page PFN and counts their repeated occurrence. Once the counter for a |
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8 | 8 | PFN overflows, we try to soft-offline that page as we take it to mean |
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.. | .. |
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11 | 11 | |
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12 | 12 | Bear in mind that this is absolutely useless if your platform doesn't |
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13 | 13 | have ECC DIMMs and doesn't have DRAM ECC checking enabled in the BIOS. |
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| 14 | + |
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| 15 | +config RAS_CEC_DEBUG |
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| 16 | + bool "CEC debugging machinery" |
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| 17 | + default n |
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| 18 | + depends on RAS_CEC |
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| 19 | + help |
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| 20 | + Add extra files to (debugfs)/ras/cec to test the correctable error |
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| 21 | + collector feature. "pfn" is a writable file that allows user to |
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| 22 | + simulate an error in a particular page frame. "array" is a read-only |
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| 23 | + file that dumps out the current state of all pages logged so far. |
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