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CONFIG_EDAC_AMD64_ERROR_INJECTION: Sysfs Error Injection facilities

General informations

The Linux kernel configuration item CONFIG_EDAC_AMD64_ERROR_INJECTION has multiple definitions:

Sysfs Error Injection facilities found in drivers/edac/Kconfig

The configuration item CONFIG_EDAC_AMD64_ERROR_INJECTION:

Help text

Recent Opterons (Family 10h and later) provide for Memory Error Injection into the ECC detection circuits. The amd64_edac module allows the operator/user to inject Uncorrectable and Correctable errors into DRAM.

When enabled, in each of the respective memory controller directories (/sys/devices/system/edac/mc/mcX), there are 3 input files:

- inject_section (0..3, 16-byte section of 64-byte cacheline), - inject_word (0..8, 16-bit word of 16-byte section), - inject_ecc_vector (hex ecc vector: select bits of inject word)

In addition, there are two control files, inject_read and inject_write, which trigger the DRAM ECC Read and Write respectively.

Sysfs HW Error injection facilities found in drivers/edac/Kconfig

The configuration item CONFIG_EDAC_AMD64_ERROR_INJECTION:

Help text

Recent Opterons (Family 10h and later) provide for Memory Error Injection into the ECC detection circuits. The amd64_edac module allows the operator/user to inject Uncorrectable and Correctable errors into DRAM.

When enabled, in each of the respective memory controller directories (/sys/devices/system/edac/mc/mcX), there are 3 input files:

- inject_section (0..3, 16-byte section of 64-byte cacheline), - inject_word (0..8, 16-bit word of 16-byte section), - inject_ecc_vector (hex ecc vector: select bits of inject word)

In addition, there are two control files, inject_read and inject_write, which trigger the DRAM ECC Read and Write respectively.

Hardware

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