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charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam09 X-Rspamd-Queue-Id: 3C4BE10000D X-Stat-Signature: 1tkjjkipd9wmouu9fbamdrmodbxwfzt1 X-HE-Tag: 1737485324-597151 X-HE-Meta: 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 uZUz+AWs wySoRt64gHmnc9ZfZ61bAuPZLfWfiY0bvlejY4B7CfKIaAJ5fgkB9vEyTSOaoDaP9wdgLqDIaTPLsr63qjwZxp2K6LDXfNFWiD1aV8r+YGOU8B9nn50CR39249TPqQF1qSQcbedqI2vrFtdEaKKgesLEvaP850QgXU+ODKaX4HqJMy1/Gn1Y5i2l0BOO7e3NUR+Y6We+5aZTjh+KPossAeNMEO/UrXdyycMWYT+1O2DqaU9fmORtoDDNztG4uG6arDmHbJ+BnZ7C0+NazLd/FkJJe3Q== 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 1/21/25 01:55, Peter Zijlstra wrote: > Can't we just start with a very simple constant test and poke at things > if/when its found to not work? I'd prefer something simpler for now, too. Let's just pick a sane number, maybe 16 or 32 for now, make it pokeable in debugfs and make sure we have a way to tell when the PCID space is exhausted. Then we try and design a solution for the _actual_ cases where folks are exhausting it.