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charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: D0C33140006 X-Stat-Signature: 5r14bo34u6gt9uthbx6ukt89upzhzu5x X-Rspam-User: X-HE-Tag: 1770039760-337536 X-HE-Meta: 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 aWz/wqJa U+SgWg1Lc9H8UO4mrQB9+opDg/isCCD8wzmFfCmZsIFlucYCyOun2GowCTDhFh+lbSyyZdwXodtsqCVc0KY9dnrfhGqXktdfbRh9mkjjjRh0d4NidJ3+OVyJOx1spfrbAMahCl7RtJ6eoVGDGyZg8yJF7DKbxDlkysU74bB+ONDcoQKosES5Em8XW3dif+Geyr6BY8NLuMTuTajTIZ2k0kexnsfKRBXO8jlLrmb43AqDwyyM= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, 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, Feb 02, 2026 at 09:23:07PM +0800, Lance Yang wrote: > Hmm... we need MB rather than RMB on the sync side. Is that correct? > > Walker: > [W]active_lockless_pt_walk_mm = mm -> MB -> [L]page-tables > > Sync: > [W]page-tables -> MB -> [L]active_lockless_pt_walk_mm > This can work -- but only if the walker and sync touch the same page-table address. Now, typically I would imagine they both share the p4d/pud address at the very least, right?