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Fri, 20 Feb 2026 06:51:55 -0800 (PST) MIME-Version: 1.0 References: <20260213095410.1862978-1-glider@google.com> In-Reply-To: From: Alexander Potapenko Date: Fri, 20 Feb 2026 15:51:17 +0100 X-Gm-Features: AaiRm521oqZ4C18Oc-qFEQM1txdUhdvqiUI1K2F1OhtYJjScl8iiQRwoFqDDN0A Message-ID: Subject: Re: [PATCH v1] mm/kfence: disable KFENCE upon KASAN HW tags enablement To: Ernesto Martinez Garcia Cc: Marco Elver , akpm@linux-foundation.org, mark.rutland@arm.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, kasan-dev@googlegroups.com, pimyn@google.com, Andrey Konovalov , Andrey Ryabinin , Dmitry Vyukov , Greg KH , Kees Cook , stable@vger.kernel.org Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 92B9F180003 X-Stat-Signature: 4ukwes67zy4zcs5sxwweb6qgqgskhian X-Rspam-User: X-Rspamd-Server: rspam12 X-HE-Tag: 1771599116-962557 X-HE-Meta: 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 1/X5ghKB v5JOC4v0q7DZvFlaMcvuOMI9AMGb/81LOFGGF5TPkU0BEjXehGy5J0RFan40s7/nvpQLy7yVzscsgdlVwZknUkanfoT6YJ7mYqw6XFWdE4vQKiIdE7Zi02DsV4gk/GErDWnB2cM1iWV6Hy1RPl3LVdql00V+DCkJYKMu0UDMA6pTmR9RHeG5imHIrKs648dlsj89zLBZpJ7/CZodSeg0gbmjKLLP6Hl8pTR7Sb5Y7MkigJzubQXoAoqHKe94lA3qu1mDaRKl7GulYlIRfoKiXIoBZV2VHS/YnxAN4sK141xxApR+MSZyTVqPeo2jqhseNISdGBnq3qvyQ5EcFpKYqANHlKg== 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: > But this requires adding __GFP_SKIP_KASAN as allowed in > __alloc_contig_verify_gfp_mask I think. Unsure if there is a cleaner way > of doing it, or if changing __alloc_contig_verify_gfp_mask could break > something else unexpectedly. > > I would be happy to try to submit a patch for it :) Sorry, I was working on a patch when I saw this email. Let me send it.