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Mon, 19 Feb 2024 01:52:54 -0800 (PST) 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 X-Rspam-User: X-Stat-Signature: i5m6bjf9urggenufzd9djphn94sb6abf X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 12F3340023 X-HE-Tag: 1708336375-690131 X-HE-Meta: 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 dKCEfGjw KszODPrOlAp1dlpDtCpB+/ze8sdMPU8UKucDijlXfLwOjn9HShZk9IB81nAAeqDgYaVwI X-Bogosity: Ham, tests=bogofilter, spamicity=0.127670, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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