From: Michal Hocko <mhocko@suse.com>
To: Alexis Bouzigues <BouziguesAlexis@johndeere.com>
Cc: "akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"liam@infradead.org" <liam@infradead.org>,
"ljs@kernel.org" <ljs@kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] mm: nommu: set MMF_OOM_SKIP in exit_mmap()
Date: Thu, 15 Oct 2026 09:03:57 +0200 [thread overview]
Message-ID: <atB63fzpLyfWpzPn@tiehlicka> (raw)
In-Reply-To: <BY3PR05MB82607AF910C023253C48CD26A09D2@BY3PR05MB8260.namprd05.prod.outlook.com>
On Wed 14-10-26 21:58:52, Alexis Bouzigues wrote:
> On Wed, Oct 14, 2026 at 09:50:30AM +0200, Michal Hocko wrote:
> > > Set MMF_OOM_SKIP in the NOMMU exit_mmap() once the VMAs are freed, as
> > > the MMU version does.
> > Is this a real problem that you can actually hit?
>
> Yes, without this change the oom killer can fail to make progress to
> resolve a global oom.
Are you really looking into the code or just relying on an LLM?
Go and check to learn that the oom reaper is only compiled in with
CONFIG_MMU=y
--
Michal Hocko
SUSE Labs
prev parent reply other threads:[~2026-10-15 7:04 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-13 22:56 [PATCH] mm: nommu: set MMF_OOM_SKIP in exit_mmap() Alexis Bouzigues via B4 Relay
2026-10-14 7:50 ` Michal Hocko
2026-10-14 21:58 ` Alexis Bouzigues
2026-10-15 7:03 ` Michal Hocko [this message]
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