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Sat, 10 Aug 2024 16:52:59 -0700 (PDT) Received: from [2620:0:1008:15:8522:e02:424a:c5b5] ([2620:0:1008:15:8522:e02:424a:c5b5]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-200bb9b4dcesm16021725ad.139.2024.08.10.16.52.58 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 10 Aug 2024 16:52:59 -0700 (PDT) Date: Sat, 10 Aug 2024 16:52:57 -0700 (PDT) From: David Rientjes To: Axel Rasmussen cc: Andrew Morton , Christoph Lameter , Hyeonggon Yoo <42.hyeyoo@gmail.com>, Joonsoo Kim , Pekka Enberg , Roman Gushchin , Vlastimil Babka , linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH] mm, slub: print CPU id on slab OOM In-Reply-To: <20240806232649.3258741-1-axelrasmussen@google.com> Message-ID: <4e06d3ee-de78-9a71-ccec-6c0a5aa0c7f6@google.com> References: <20240806232649.3258741-1-axelrasmussen@google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII On Tue, 6 Aug 2024, Axel Rasmussen wrote: > Depending on how remote_node_defrag_ratio is configured, allocations can > end up in this path as a result of the local node being OOM, despite the > allocation overall being unconstrained (node == -1). > > When we print a warning, printing the current CPU makes that situation > more clear (i.e., you can immediately see which node's OOM status > matters for the allocation at hand). > > Signed-off-by: Axel Rasmussen Acked-by: David Rientjes