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b=HH8R+L8HsK2swvjdoSOvXv3+R79dEhpbNVvX6VDjStjqIShSbGmPEwr2fYd8Dl/LK JLEb6N5PGpp/LY+/L5yvIBi+ueq4Q7VOfEcBRuhqgyDHs9HTFQGS8o1ICSzilFwmn6 t8aRDA0UEoUXgw6SMCErJ8xPNmPdWjvU01VmGRVqPoEI2d7cwrO4eScHqNfW5XuSnm Wj83jVeKR7nPAZCE5vst6YxFiJB+zgJyGJLW/0LXURwk4NJ2NIJfa0pmrpHAUQX0SQ Q9jOPabpqBfkIXQtWhqJDs5JrQvOv2N9RWEZOPZ9OzZns1/04r5Xmmjq0oUHjQcVgq up3Gnj1ihLZWw== From: SeongJae Park To: "Kunwu Chan" Cc: SeongJae Park , "Kunwu Chan" , "Wang Lian" , akpm@linux-foundation.org, damon@lists.linux.dev, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH] mm/damon: fix stale TLB young-state handling on arm64 Date: Sun, 31 May 2026 09:24:56 -0700 Message-ID: <20260531162457.98724-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam12 X-Stat-Signature: d31eb5wzpqy5srz7e178u3dkq8ggnrb7 X-Rspam-User: X-Rspamd-Queue-Id: 2AD3F120008 X-HE-Tag: 1780244702-571448 X-HE-Meta: U2FsdGVkX19/g9Bo205PO9m0hf+ZaaddoD/5B7iQxvo0/bJIh97o5OWh8FI2p5wIeOWE/4y4Dr2mTAK022OhBpVFC8zKZ+hSmICnpRdZqPVEjCY1Qa0gJQnCJI9eLXzlgIsOuowzMIhiSFbpmXSpvjQz4z4d7rzGvX7lujmSOaYQi4lfEWx9Furom4aBqnoqyIecakqt8MJv6SznlZArvh6F8bfw0sIrrKDJSGnCtbUGrRi901pivoKOShS+WplwfK6+T/bTBBvMtjGMFsrNfwbU1jRqo8SRTk3xt4N5w4CgcNng/mCWahZBQzkNbAbFPpLjPwVunb1XY+dCU3PaD1Z47TccY+G9X91qkDvPAvRLvu7qa//2s+4EFZwwt9wIKL4Jwp+otwIdKNG5HJL0kaV7I6pEBIjz1HKTaRydUIxWtBo1lbVw+IkWK/XFhTNbM0mlELhF1+bWC8/6idisV+j5X5468XVtdWlxblWJf5fpgQS+7y5t8MkqkXW/k/yOcidvWJBkSJMIxZsF/B4e105IVar88E8wHg0lAcy2z40V/O9YoUwjCSUcT4H7TclrqfuxqUQTCVv+OwfWLr9E2gdTAsYhB5QlRYMF72DBUEIAF0uh0R1bf8xZe8EeNZ5AmLrgEUZfv5bM5DBgOaeibaHIby72tY4VWZXOifxNFDAmNzEYzLujIoeHkdRmB6eEQKQsWKxs3SkjZFQz0HuErJjRD5lrQA3Dx4kX0dLyAE4eYK2QvS6sBGEVPeyUSBeWbrs1/GDQNIpWs+EMNbu7cE/an4FGTWPhqTR8QiPT3S4OL8ucgtAYkkwKtMq2SsSZMRUEsydJVh2fuh9Ya3mkp5bwLLHRPzBSOJ/fN5Vs1qEg379HA0TO+Yn/XtdHmLOBPcp4H3I8Rj6P8jhdbLkatoe/HLXJDl2cQOBPMYgqbvlrebhTMdqCV3kfImOHR9L3QR7Tu3rZRZEiPMFlrD4 KpMk0C12 seEbEUAA1HwJ4lh6hl0UcCOX0z/m0gMAecnJdVFGT4Z4aBcbzFXLxC6tEZUQgqVzx/0ZI/F2zTVCSs/sPBGZG75kpTOYWicun5BRtnsTO+pYIE9AlhoyMwc0DpI7OLKO8uE8DCRHL3J1JA6gQomm4PSeI9QuqcebFIXiTUO7ueHS6y9wBtecDXjS6ykdMAg6oo6gHkCGGgHKUgpJgWFL8o92A8PvFUktGd94c5iyNZsxCm2LC/X9Y640wEA3xmJ+1D0TO5HArPRk7jXQcbxqLOjyA83gVAgsXbrUeFIQddHbkt16O8FmH4lh2qu5u0u887HXBS4jZ06bu/GHMmx20NHFmlWEYEd4Hg5aEOQpz5LUOEIpjp/9LAoF2inA9SirYNLJryB+JcFDEQFc= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Sun, 31 May 2026 12:16:49 +0000 "Kunwu Chan" wrote: [...] > We think that makes sense. Explaining the rationale for not flushing TLB, > the limitations this can introduce for tests, and recommendations for > choosing reliable test working set sizes would be helpful. Thank you for kindly accepting my suggestion. > > If we later find cases where the documented recommendations are still > insufficient, we can revisit more intrusive approaches. > > I'd be happy to help with the documentation work if needed. Please let > me know if you'd like me to prepare a draft patch. Yes, please feel free to send a patch! :) Thanks, SJ [...]