From: Andrew Morton <akpm@linux-foundation.org>
To: Noah Feldt <noah@feldt.systems>
Cc: Shakeel Butt <shakeel.butt@linux.dev>,
Johannes Weiner <hannes@cmpxchg.org>,
David Hildenbrand <david@kernel.org>,
Qi Zheng <qi.zheng@linux.dev>, Kairui Song <kasong@tencent.com>,
Barry Song <baohua@kernel.org>,
Meta kernel team <kernel-team@meta.com>,
linux-mm@kvack.org, linux-kernel@vger.kernel.org,
stable@vger.kernel.org
Subject: Re: [PATCH] mm: mglru: splice all generations when reparenting a memcg
Date: Sun, 15 Nov 2026 06:54:02 -0800 [thread overview]
Message-ID: <20261115065402.90457052d92ddf668f7e37d5@linux-foundation.org> (raw)
In-Reply-To: <20261115124954.7146-1-noah@feldt.systems>
On Sun, 15 Nov 2026 12:50:02 +0000 Noah Feldt <noah@feldt.systems> wrote:
> On Wed, Nov 11, 2026, Shakeel Butt wrote:
> > Noah reported list_del corruption on single-node hosts running 7.2.11,
> > which already has commit bf4ade7dbd76 ("memcg: keep folio's objcg same
> > as its node"). The bad pointer is an MGLRU list head in a freed
> > mem_cgroup_per_node:
>
> I have already rolled this patch out on our servers. Since then the
> panics and resulting restarts from my report have stopped, and we have
> not noticed any other unusual behaviour.
>
> Tested-by: Noah Feldt <noah@feldt.systems>
Great, thanks, added to changelog.
This patch is in the mm-hotfixes queue for upstreaming during this -rc
cycle. It has cc:stable.
prev parent reply other threads:[~2026-11-15 14:54 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-11 0:09 Shakeel Butt
2026-11-11 0:27 ` Barry Song
2026-11-11 8:57 ` Kairui Song
2026-11-11 18:13 ` Kairui Song
2026-11-12 8:46 ` Baolin Wang
2026-11-15 12:50 ` Noah Feldt
2026-11-15 14:54 ` Andrew Morton [this message]
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