Add documentation for memory_failure's per NUMA node sysfs entries Signed-off-by: Jiaqi Yan <jiaqiyan@xxxxxxxxxx> --- Documentation/ABI/stable/sysfs-devices-node | 39 +++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/Documentation/ABI/stable/sysfs-devices-node b/Documentation/ABI/stable/sysfs-devices-node index 8db67aa472f1..402af4b2b905 100644 --- a/Documentation/ABI/stable/sysfs-devices-node +++ b/Documentation/ABI/stable/sysfs-devices-node @@ -182,3 +182,42 @@ Date: November 2021 Contact: Jarkko Sakkinen <jarkko@xxxxxxxxxx> Description: The total amount of SGX physical memory in bytes. + +What: /sys/devices/system/node/nodeX/memory_failure/total +Date: January 2023 +Contact: Jiaqi Yan <jiaqiyan@xxxxxxxxxx> +Description: + The total number of raw poisoned pages (pages containing + corrupted data due to memory errors) on a NUMA node. + +What: /sys/devices/system/node/nodeX/memory_failure/ignored +Date: January 2023 +Contact: Jiaqi Yan <jiaqiyan@xxxxxxxxxx> +Description: + Of the raw poisoned pages on a NUMA node, how many pages are + ignored by memory error recovery attempt, usually because + support for this type of pages is unavailable, and kernel + gives up the recovery. + +What: /sys/devices/system/node/nodeX/memory_failure/failed +Date: January 2023 +Contact: Jiaqi Yan <jiaqiyan@xxxxxxxxxx> +Description: + Of the raw poisoned pages on a NUMA node, how many pages are + failed by memory error recovery attempt. This usually means + a key recovery operation failed. + +What: /sys/devices/system/node/nodeX/memory_failure/delayed +Date: January 2023 +Contact: Jiaqi Yan <jiaqiyan@xxxxxxxxxx> +Description: + Of the raw poisoned pages on a NUMA node, how many pages are + delayed by memory error recovery attempt. Delayed poisoned + pages usually will be retried by kernel. + +What: /sys/devices/system/node/nodeX/memory_failure/recovered +Date: January 2023 +Contact: Jiaqi Yan <jiaqiyan@xxxxxxxxxx> +Description: + Of the raw poisoned pages on a NUMA node, how many pages are + recovered by memory error recovery attempt. -- 2.39.0.246.g2a6d74b583-goog
