From: "Arnd Bergmann" <arnd@arndb.de>
To: "Xie Yuanbin" <xieyuanbin1@huawei.com>,
"Russell King" <linux@armlinux.org.uk>,
"Andrew Morton" <akpm@linux-foundation.org>,
"David Hildenbrand" <david@redhat.com>,
"Lorenzo Stoakes" <lorenzo.stoakes@oracle.com>,
"Liam R. Howlett" <Liam.Howlett@oracle.com>,
"Vlastimil Babka" <vbabka@suse.cz>,
"Mike Rapoport" <rppt@kernel.org>,
"Suren Baghdasaryan" <surenb@google.com>,
"Michal Hocko" <mhocko@suse.com>,
linmiaohe@huawei.com, nao.horiguchi@gmail.com,
"Russell King" <rmk+kernel@armlinux.org.uk>,
"Ard Biesheuvel" <ardb@kernel.org>,
"Nathan Chancellor" <nathan@kernel.org>,
"Eric Biggers" <ebiggers@kernel.org>,
"Steven Rostedt" <rostedt@goodmis.org>,
"Kees Cook" <kees@kernel.org>,
"Dave Vasilevsky" <dave@vasilevsky.ca>,
"Peter Zijlstra" <peterz@infradead.org>
Cc: "Will Deacon" <will@kernel.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
liaohua4@huawei.com, lilinjie8@huawei.com
Subject: Re: [RFC PATCH 1/2] ARM: mm: support memory-failure
Date: Mon, 22 Sep 2025 08:37:29 +0200 [thread overview]
Message-ID: <727caa4f-5be5-4b59-a10e-8dc9bbc384bf@app.fastmail.com> (raw)
In-Reply-To: <20250922021453.3939-1-xieyuanbin1@huawei.com>
On Mon, Sep 22, 2025, at 04:14, Xie Yuanbin wrote:
> Memory failure provides the ability of soft offline pages,
> which is very useful to handle the memory errors such as CE in ECC.
>
> Although ARM does not have a user interface like
> `/sys/devices/system/memory/soft_offline_page`, memory-failure still
> provides some exported func that can be used by some module ko driver.
It would be helpful to be more specific about what you
want to do with this.
Are you working on a driver that would actually make use of
the exported interface? I see only a very small number of
drivers that call memory_failure(), and none of them are
usable on Arm.
Arnd
next prev parent reply other threads:[~2025-09-22 6:38 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-22 2:14 [RFC PATCH 1/2] ARM: mm: support memory-failure Xie Yuanbin
2025-09-22 2:14 ` [RFC PATCH 2/2] ARM: memory-failure: not select RAS and MEMORY_ISOLATION Xie Yuanbin
2025-09-22 8:15 ` David Hildenbrand
2025-09-22 8:47 ` [RFC PATCH 1/2] ARM: mm: support memory-failure Xie Yuanbin
2025-09-22 6:37 ` Arnd Bergmann [this message]
2025-09-22 8:28 ` Xie Yuanbin
2025-09-22 12:51 ` Arnd Bergmann
2025-09-23 4:10 ` Xie Yuanbin
2025-11-03 16:53 ` David Hildenbrand (Red Hat)
2025-11-04 13:48 ` Xie Yuanbin
2025-10-22 3:58 ` Xie Yuanbin
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