linux-kernel - Re: [PATCH v3 0/2] mm/vmscan: mitigate spurious kswapd

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Message-Id: <20260115153919.6c3253ba9e81d57efe2d4716@linux-foundation.org>
Date: Thu, 15 Jan 2026 15:39:19 -0800
From: Andrew Morton <akpm@...ux-foundation.org>
To: Jiayuan Chen <jiayuan.chen@...ux.dev>
Cc: linux-mm@...ck.org, shakeel.butt@...ux.dev, David Hildenbrand
 <david@...nel.org>, Lorenzo Stoakes <lorenzo.stoakes@...cle.com>,
 "Liam R. Howlett" <Liam.Howlett@...cle.com>, Vlastimil Babka
 <vbabka@...e.cz>, Mike Rapoport <rppt@...nel.org>, Suren Baghdasaryan
 <surenb@...gle.com>, Michal Hocko <mhocko@...e.com>, Axel Rasmussen
 <axelrasmussen@...gle.com>, Yuanchu Xie <yuanchu@...gle.com>, Wei Xu
 <weixugc@...gle.com>, Steven Rostedt <rostedt@...dmis.org>, Masami
 Hiramatsu <mhiramat@...nel.org>, Mathieu Desnoyers
 <mathieu.desnoyers@...icios.com>, Brendan Jackman <jackmanb@...gle.com>,
 Johannes Weiner <hannes@...xchg.org>, Zi Yan <ziy@...dia.com>, Qi Zheng
 <zhengqi.arch@...edance.com>, Jiayuan Chen <jiayuan.chen@...pee.com>,
 linux-kernel@...r.kernel.org, linux-trace-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/2] mm/vmscan: mitigate spurious kswapd_failures
 reset and add tracepoints

On Wed, 14 Jan 2026 15:40:34 +0800 Jiayuan Chen <jiayuan.chen@...ux.dev> wrote:

> == Problem ==
> 
> We observed an issue in production on a multi-NUMA system where kswapd
> runs endlessly, causing sustained heavy IO READ pressure across the
> entire system.
> 
> == Solution ==
>
> ...
>

Thanks, I'll update mm.git to this version to keep the series under
test while Michal and Shakeel continue their review (please!).