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Howlett" , Vlastimil Babka , Jann Horn , Pedro Falcato , David Hildenbrand , Suren Baghdasaryan Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, sashiko@lists.linux.dev, Konstantin Ryabitsev Subject: Re: [PATCH v3 00/40] mm: make VMA flag semantics explicit, eliminate VM_SPECIAL Message-ID: References: <20260917-b4-mmap-prepare-vma-flag-sanify-v3-0-4583d8a23bca@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260917-b4-mmap-prepare-vma-flag-sanify-v3-0-4583d8a23bca@kernel.org> X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 89040C0004 X-Stat-Signature: dwcchfwkosqw4pq5qh16gobimieyj87g X-Rspam-User: X-HE-Tag: 1790351917-584971 X-HE-Meta: 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 3/OLZYTI 8AIPce+Yr5Iw2SCG0Khprk6kJ5Cawwa3wP8euNoH2x7c6zVMSI5NX9J/VPHDIb/anxblKtrL3akW3RedHdkF6PP3occM6b69361iTJNHt4JCAUAHgNDcL3FYi14JxEQVZllcU8T0OjCx7WEr7K91N+aXbj6Ss9aiQSIcbgH72XeSqw/1MfIc9SJNFTN/oKrsA6D8ftqZRPH+32xlH1xdC/N1t0XDJuuoPKYft1/pqAAjoqc6SkJKwjuoF+btYYJenQVIySVZtZxXR9nTmdxBAvBPPFFoUW5unm7M9Dj6LSUFdMkg= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: < Edit mailing list, +sashiko as I gather this kind of feedback is wanted? :) > I usually don't report it, but here's an example of some false positives, which sashiko regenerates on respin. Specifically the 2/40 (high) report was valid, as raised by Gregory and now addressed ready for v4. The ones on 1/40 (high), the other 2 on 4/40 (medium, medium) and the one on 24/40 (low) were all just wrong. The one on 8/40 is bit but had some semblence of logic, but still not something I'll take action on. So a false positive rate of 83.3% here, or 67.7% if you exclude the 'meh' one. In general I've continued to find the rate to be 50% at best, and it has not improved over time. It also seems that low/medium reports (which I think were disabled before?) are particularly bad. (I thought those were previously disabled for being inaccurate?) I realise everybody is busy, but it'd be nice to have a means of marking individual reports as hallucinations. Thanks! -- Cheers, Lorenzo