* + mm-memory-failure-document-memory-failure-stats.patch added to mm-unstable branch
@ 2023-01-21 1:28 Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2023-01-21 1:28 UTC (permalink / raw)
To: mm-commits, wangkefeng.wang, tony.luck, shy828301, rientjes,
naoya.horiguchi, jiaqiyan, akpm
The patch titled
Subject: mm: memory-failure: document memory failure stats
has been added to the -mm mm-unstable branch. Its filename is
mm-memory-failure-document-memory-failure-stats.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-memory-failure-document-memory-failure-stats.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Jiaqi Yan <jiaqiyan@google.com>
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@google.com
Signed-off-by: Jiaqi Yan <jiaqiyan@google.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
--- 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@kernel.org>
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@google.com>
+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@google.com>
+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@google.com>
+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@google.com>
+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@google.com>
+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@google.com are
mm-khugepaged-recover-from-poisoned-anonymous-memory.patch
mm-khugepaged-recover-from-poisoned-file-backed-memory.patch
mm-memory-failure-add-memory-failure-stats-to-sysfs.patch
mm-memory-failure-bump-memory-failure-stats-to-pglist_data.patch
mm-memory-failure-document-memory-failure-stats.patch
^ permalink raw reply [flat|nested] 2+ messages in thread
* + mm-memory-failure-document-memory-failure-stats.patch added to mm-unstable branch
@ 2023-01-16 20:19 Andrew Morton
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Morton @ 2023-01-16 20:19 UTC (permalink / raw)
To: mm-commits, wangkefeng.wang, tony.luck, shy828301, rientjes,
naoya.horiguchi, jiaqiyan, akpm
The patch titled
Subject: mm: memory-failure: document memory failure stats
has been added to the -mm mm-unstable branch. Its filename is
mm-memory-failure-document-memory-failure-stats.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-memory-failure-document-memory-failure-stats.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days
------------------------------------------------------
From: Jiaqi Yan <jiaqiyan@google.com>
Subject: mm: memory-failure: document memory failure stats
Date: Mon, 16 Jan 2023 19:39:02 +0000
Add documentation for memory_failure's per NUMA node sysfs entries.
Link: https://lkml.kernel.org/r/20230116193902.1315236-4-jiaqiyan@google.com
Signed-off-by: Jiaqi Yan <jiaqiyan@google.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Yang Shi <shy828301@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
--- 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@kernel.org>
Description:
The total amount of SGX physical memory in bytes.
+
+What: /sys/devices/system/node/nodeX/memory_failure/pages_poisoned
+Date: January 2023
+Contact: Jiaqi Yan <jiaqiyan@google.com>
+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/pages_ignored
+Date: January 2023
+Contact: Jiaqi Yan <jiaqiyan@google.com>
+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/pages_failed
+Date: January 2023
+Contact: Jiaqi Yan <jiaqiyan@google.com>
+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/pages_delayed
+Date: January 2023
+Contact: Jiaqi Yan <jiaqiyan@google.com>
+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/pages_recovered
+Date: January 2023
+Contact: Jiaqi Yan <jiaqiyan@google.com>
+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@google.com are
mm-khugepaged-recover-from-poisoned-anonymous-memory.patch
mm-khugepaged-recover-from-poisoned-file-backed-memory.patch
mm-memory-failure-add-memory-failure-stats-to-sysfs.patch
mm-memory-failure-bump-memory-failure-stats-to-pglist_data.patch
mm-memory-failure-document-memory-failure-stats.patch
^ permalink raw reply [flat|nested] 2+ messages in thread
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