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AJvYcCW3S19VK1PodVadvmfa3Mym0DuBN5lmBb9FvU7n89G5K5f1DjFlqkpWd4ODDkwFMl7sr/qeY1qu5MT3qaIp6P57wBV9XVE85oszTulw X-Gm-Message-State: AOJu0Yza8aMd4dDdMq4xIRDC6vnBv9Q2U/DRnEmEmJ1/RBQhbnQwL3DO 0m72O+GQ89CbUh5Z8h1w6EMKr7JTd/q8zmmYGOsUSeoUTyT2NSCvTPu8/AGPBi9dqUvGM+Puafy B6FzxtNj0aDwp+PlPtl/EJou0aZN0WtxTAMdR X-Received: by 2002:a1f:de02:0:b0:4c8:38f2:cebc with SMTP id v2-20020a1fde02000000b004c838f2cebcmr1870633vkg.13.1708336374943; Mon, 19 Feb 2024 01:52:54 -0800 (PST) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 References: In-Reply-To: From: Marco Elver Date: Mon, 19 Feb 2024 10:52:17 +0100 Message-ID: Subject: Re: regression/bisected commit 773688a6cb24b0b3c2ba40354d883348a2befa38 make my system completely unusable under high load To: Mikhail Gavrilov , Andrew Morton Cc: Andrey Konovalov , glider@google.com, dvyukov@google.com, eugenis@google.com, Oscar Salvador , Vlastimil Babka , Linux List Kernel Mailing , Linux Memory Management List Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Mon, 19 Feb 2024 at 10:48, Mikhail Gavrilov wrote: > > On Sat, Feb 3, 2024 at 1:14=E2=80=AFAM Mikhail Gavrilov > wrote: > > > > You are right. > > Thanks for digging into it! > > > > This [2] revert is still not merged at least I checked on 4f5e5092fdbf. > Is there any plan to merge it or find another approach? > > [2] https://lore.kernel.org/all/20240118110216.2539519-2-elver@google.com= / I think it's already in -mm and -next. It just takes time, which is a good thing, after all we want to let -next testing confirm nothing is wrong with it. Andrew, is this planned for the next merge window or as a "hot fix" for the current rc? Given it has the right "Fixes" tags it will make it to stable kernels eventually, but I also think that the previous "slow" version is almost unusable on big systems, so it may be worthwhile considering the current rc. Thanks, -- Marco