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[109.81.95.13]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-a7213f474e0sm273562966b.190.2024.06.24.09.46.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Jun 2024 09:46:43 -0700 (PDT) Date: Mon, 24 Jun 2024 18:46:42 +0200 From: Michal Hocko To: Waiman Long Cc: Roman Gushchin , Johannes Weiner , Muchun Song , Andrew Morton , Jonathan Corbet , Shakeel Butt , linux-kernel@vger.kernel.org, cgroups@vger.kernel.org, linux-mm@kvack.org, Alex Kalenyuk , Peter Hunt , linux-doc@vger.kernel.org Subject: Re: [PATCH] memcg: Add a new sysctl parameter for automatically setting memory.high Message-ID: References: <20240623204514.1032662-1-longman@redhat.com> <77d4299e-e1ee-4471-9b53-90957daa984d@redhat.com> Precedence: bulk X-Mailing-List: cgroups@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Mon 24-06-24 12:33:27, Waiman Long wrote: > I also trace back the OOM problem to commit 14aa8b2d5c2e ("mm/mglru: don't > sync disk for each aging cycle") in the MGLRU code. So setting memory.high > automatically is one way to avoid premature OOM. That is the motivation > behind this patch. Please report this. -- Michal Hocko SUSE Labs