linux-kernel - Re: [PATCH v3] mm: slub: only warn once when allocating slab obj extensions fails

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Message-ID: <7ia4ldq9vmbj.fsf@castle.c.googlers.com>
Date: Mon, 02 Jun 2025 21:57:20 +0000
From: Roman Gushchin <roman.gushchin@...ux.dev>
To: Usama Arif <usamaarif642@...il.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>,  surenb@...gle.com,
  hannes@...xchg.org,  shakeel.butt@...ux.dev,  vlad.wing@...il.com,
  linux-mm@...ck.org,  kent.overstreet@...ux.dev,  cl@...two.org,
  rientjes@...gle.com,  vbabka@...e.cz,  harry.yoo@...cle.com,
  linux-kernel@...r.kernel.org,  kernel-team@...a.com
Subject: Re: [PATCH v3] mm: slub: only warn once when allocating slab obj
 extensions fails

Usama Arif <usamaarif642@...il.com> writes:

> In memory bound systems, a large number of warnings for failing this
> allocation repeatedly may mask any real issues in the system
> during memory pressure being reported in dmesg. Change this to
> warning only once.
>
> Signed-off-by: Usama Arif <usamaarif642@...il.com>
> Reported-by: Vlad Poenaru <vlad.wing@...il.com>
> Closes: https://lore.kernel.org/all/17fab2d6-5a74-4573-bcc3-b75951508f0a@gmail.com/

Acked-by: Roman Gushchin <roman.gushchin@...ux.dev>

Thanks!