From: Andi Kleen <ak@linux.intel.com>
To: Jiaqi Yan <jiaqiyan@google.com>
Cc: nao.horiguchi@gmail.com, linmiaohe@huawei.com,
jane.chu@oracle.com, osalvador@suse.de, muchun.song@linux.dev,
akpm@linux-foundation.org, shuah@kernel.org, corbet@lwn.net,
rientjes@google.com, duenwen@google.com, fvdl@google.com,
linux-mm@kvack.org, linux-kselftest@vger.kernel.org,
linux-doc@vger.kernel.org
Subject: Re: [PATCH v4 0/4] Userspace controls soft-offline pages
Date: Thu, 20 Jun 2024 15:53:11 -0700 [thread overview]
Message-ID: <87msnfusyw.fsf@linux.intel.com> (raw)
In-Reply-To: <20240620184856.600717-1-jiaqiyan@google.com> (Jiaqi Yan's message of "Thu, 20 Jun 2024 18:48:52 +0000")
Jiaqi Yan <jiaqiyan@google.com> writes:
> Correctable memory errors are very common on servers with large
> amount of memory, and are corrected by ECC, but with two
> pain points to users:
> 1. Correction usually happens on the fly and adds latency overhead
> 2. Not-fully-proved theory states excessive correctable memory
> errors can develop into uncorrectable memory error.
This patchkit is amusing (or maybe sad) because it basically tries to
reconstruct the original soft offline design using a user space daemon
instead of doing policy badly in the kernel.
You can still have it by enabling CONFIG_X86_MCELOG_LEGACY and
use http://www.mcelog.org or an equivalent daemon of your chosing
that listens to /dev/mcelog.
-Andi
next prev parent reply other threads:[~2024-06-20 22:53 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-20 18:48 [PATCH v4 0/4] Userspace controls soft-offline pages Jiaqi Yan
2024-06-20 18:48 ` [PATCH v4 1/4] mm/memory-failure: refactor log format in soft offline code Jiaqi Yan
2024-06-24 3:08 ` Miaohe Lin
2024-06-20 18:48 ` [PATCH v4 2/4] mm/memory-failure: userspace controls soft-offlining pages Jiaqi Yan
2024-06-24 3:41 ` Miaohe Lin
2024-06-24 16:18 ` Jiaqi Yan
2024-06-20 18:48 ` [PATCH v4 3/4] selftest/mm: test enable_soft_offline behaviors Jiaqi Yan
2024-06-21 5:08 ` Muhammad Usama Anjum
2024-06-21 14:43 ` Jiaqi Yan
2024-06-20 18:48 ` [PATCH v4 4/4] docs: mm: add enable_soft_offline sysctl Jiaqi Yan
2024-06-20 22:53 ` Andi Kleen [this message]
2024-06-21 23:53 ` [PATCH v4 0/4] Userspace controls soft-offline pages Jiaqi Yan
2024-06-22 16:49 ` Andi Kleen
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87msnfusyw.fsf@linux.intel.com \
--to=ak@linux.intel.com \
--cc=akpm@linux-foundation.org \
--cc=corbet@lwn.net \
--cc=duenwen@google.com \
--cc=fvdl@google.com \
--cc=jane.chu@oracle.com \
--cc=jiaqiyan@google.com \
--cc=linmiaohe@huawei.com \
--cc=linux-doc@vger.kernel.org \
--cc=linux-kselftest@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=muchun.song@linux.dev \
--cc=nao.horiguchi@gmail.com \
--cc=osalvador@suse.de \
--cc=rientjes@google.com \
--cc=shuah@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.