From: Andrew Morton <akpm@linux-foundation.org>
To: Hao Li <hao.li@linux.dev>
Cc: "Harry Yoo (Oracle)" <harry@kernel.org>,
david@kernel.org, osalvador@suse.de, vbabka@suse.cz,
joshua.hahnjy@gmail.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, linux-cxl@vger.kernel.org
Subject: Re: [PATCH v2] mm/memory_hotplug: maintain N_NORMAL_MEMORY during hotplug
Date: Mon, 30 Mar 2026 22:15:00 -0700 [thread overview]
Message-ID: <20260330221500.01d5466b26c969f460225bea@linux-foundation.org> (raw)
In-Reply-To: <ceqmspe2x2p5uv5bk3jyiw67qkyweaviclcjdp6kgwpg6v4kdq@f7yd6rr2lpkl>
On Tue, 31 Mar 2026 12:24:46 +0800 Hao Li <hao.li@linux.dev> wrote:
> The most visible effect is that
> /sys/devices/system/node/has_normal_memory does not report a node even
> after that node has gained normal memory via hotplug.
>
> Also, list_lru-based shrinkers can undercount objects on such a node and
> may skip reclaim on that node entirely, which can lead to a higher memory
> footprint than expected.
>
> Feel free to fold the above into the changelog if useful :)
Very useful. Added, thanks!
next prev parent reply other threads:[~2026-03-31 5:15 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-03-30 3:57 Hao Li
2026-03-30 8:28 ` Harry Yoo (Oracle)
2026-03-30 9:34 ` Hao Li
2026-03-30 21:46 ` Andrew Morton
2026-03-31 4:24 ` Hao Li
2026-03-31 5:15 ` Andrew Morton [this message]
2026-03-30 12:07 ` Vlastimil Babka (SUSE)
2026-03-30 13:53 ` Joshua Hahn
2026-03-30 14:20 ` David Hildenbrand (Arm)
2026-03-31 4:14 ` Hao Li
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