The quilt patch titled
Subject: mm: memory-failure: document memory failure stats
has been removed from the -mm tree. Its filename was
mm-memory-failure-document-memory-failure-stats.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: Jiaqi Yan <jiaqiyan@xxxxxxxxxx>
Subject: mm: memory-failure: document memory failure stats
Date: Fri, 20 Jan 2023 03:46:22 +0000
Add documentation for memory_failure's per NUMA node sysfs entries
Link: https://lkml.kernel.org/r/20230120034622.2698268-4-jiaqiyan@xxxxxxxxxx
Signed-off-by: Jiaqi Yan <jiaqiyan@xxxxxxxxxx>
Acked-by: Naoya Horiguchi <naoya.horiguchi@xxxxxxx>
Cc: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Cc: Tony Luck <tony.luck@xxxxxxxxx>
Cc: Yang Shi <shy828301@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/Documentation/ABI/stable/sysfs-devices-node~mm-memory-failure-document-memory-failure-stats
+++ a/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.
_
Patches currently in -mm which might be from jiaqiyan@xxxxxxxxxx are
mm-khugepaged-recover-from-poisoned-anonymous-memory.patch
mm-khugepaged-recover-from-poisoned-file-backed-memory.patch
