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Wed, 24 Dec 2025 03:28:49 +0000 (UTC) Received: from localhost (unknown [10.72.112.137]) by mx-prod-int-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id C99551956053; Wed, 24 Dec 2025 03:28:46 +0000 (UTC) Date: Wed, 24 Dec 2025 11:28:41 +0800 From: Baoquan He To: Andrey Konovalov Cc: linux-mm@kvack.org, ryabinin.a.a@gmail.com, glider@google.com, dvyukov@google.com, vincenzo.frascino@arm.com, akpm@linux-foundation.org, kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org, kexec@lists.infradead.org, elver@google.com, sj@kernel.org, lorenzo.stoakes@oracle.com, snovitoll@gmail.com, christophe.leroy@csgroup.eu Subject: Re: [PATCH v4 00/12] mm/kasan: make kasan=on|off work for all three modes Message-ID: References: <20251128033320.1349620-1-bhe@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Scanned-By: MIMEDefang 3.0 on 10.30.177.17 X-Rspam-User: X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 26A90140019 X-Stat-Signature: 3to4p4xsasm716b1e6rhhfyasc7g8eic X-HE-Tag: 1766546934-62606 X-HE-Meta: U2FsdGVkX18AOnUBOoT0uWfbSrWtGeydtNO1WVAu/QUu0kfybZNcXgMiR8+QIomjFUUoQScVQtzn393AS6DhyFEhNCovPNkkOo5NYHmem3nq0MpxeQM54b6KX930ExGI2SM52SXi3kV59dqcRtvBuf9ZQHw//NMxvrGlysEQkCgg2QaYmKu7P4EmrszJTrtfx1pw19ompiaZlTTsS5Cnh9pGaNAFVZH3+4pK5tpGS1oFIW/cITZ/aA88rhixKpcn7hMGKg4J8GhGqD+sE33SxAda1gEl1lHEvOWE1L77SI21Nsu6r2up7Qu8vep44VhJU6oMtJtSbnCV6AQQzgglWA6FL5oXT1WeoscCdwSrOffZG6Qq9owazqFCHRlsZ2/s/1IobMFumH0zWRJZMw0XqjkcsowXMA5gLBbBvmHmDJdTAkvRNtqlkG8pUnqFZImJVXZ2e5tqUQPmI8adwtNgY4JUDAm8kLiROkAGhbEvDYy8fkUWu8uoNsyFTWFWxlu/KXYWOaMxdFzH1xWhwExaKB0s9wCuPv3XZiVwK4iQegqfQY2U7NTO5nXZ0ymZSvihLKBlYMJqWLR7q5Auu0JoUlUQDHr9DTWJym8IWD3BFCne0EXIXC9M404g6b+ZxHsTyPUD1lPZ3ROhDN9iIrOtgmYmpzAxVVGQIleLrigcp2HYtinhXyMbDkFrKJSnT4mwfpebCPJp6BzuGzfOXVF2JovI2h7v+j0GXAHXCGK5Fss5Y+atM+aBSG/ZCnJ18bigOPetqr8H8fWUA3CUghZai12dKo1gwByMAiqkacdA64nV4z0TrqUK0CHk4248BYYpPiNdmLbbstSghUy5piXsRk6P+r3y+kppuOCPTFeg+RRchq/05ryuYRRKML86zNzn4kpsow86k9gsBKGOh+rTgCj3RhU/z1nyacn+ivoWXplbQGjb1eFxte7Oz3rro/lMct83EBUal7pLWYZvali uT11GEqI 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 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: Hi Andrey, On 12/04/25 at 05:38pm, Andrey Konovalov wrote: > On Fri, Nov 28, 2025 at 4:33 AM Baoquan He wrote: > > ...snip... > > Testing: > > ======== > > - Testing on x86_64 and arm64 for generic mode passed when kasan=on or > > kasan=off. > > > > - Testing on arm64 with sw_tags mode passed when kasan=off is set. But > > when I tried to test sw_tags on arm64, the system bootup failed. It's > > not introduced by my patchset, the original code has the bug. I have > > reported it to upstream. > > - System is broken in KASAN sw_tags mode during bootup > > - https://lore.kernel.org/all/aSXKqJTkZPNskFop@MiWiFi-R3L-srv/T/#u > > This will hopefully be fixed soon, so you'll be able to test. Do you have the patch link of the fix on sw_tags breakage? I am organizing patches and testing them for reposting, but still see the sw_tags breakage during boot on arm64 system. If you have the pointer about the fix, I can grab the possible unmature code change to make sw_tags mode work to finish my testing. Thanks Baoquan