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Tue, 19 Mar 2024 19:52:00 +0900 (JST) (envelope-from penguin-kernel@I-love.SAKURA.ne.jp) Message-ID: <37cb2e7c-97f1-4179-a715-84cc02096083@I-love.SAKURA.ne.jp> Date: Tue, 19 Mar 2024 19:51:59 +0900 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] mm,page_owner: Fix recursion Content-Language: en-US To: Oscar Salvador Cc: Andrew Morton , Lei Yang , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Michal Hocko , Vlastimil Babka , Marco Elver , Andrey Konovalov , Alexander Potapenko References: <20240313234245.18824-1-osalvador@suse.de> <2ff96a50-fc65-4e42-b15d-097c0f15a455@I-love.SAKURA.ne.jp> From: Tetsuo Handa In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspam-User: X-Stat-Signature: ncz9kn1ikwocdxemyzzsda6pru1cdwos X-Rspamd-Server: rspam07 X-Rspamd-Queue-Id: 05B72100010 X-HE-Tag: 1710845536-710250 X-HE-Meta: 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 0MW5JhO1 DUiw5lPmpw6u196tjFOGlhLxi/+9zolTTU6+5RHqDIYjFJLdgPSJxuU675mdSFF+wFdaLywxo6Remi847VgK85+sR5wHX2U8admxYW0PDU5R5s3cra+DgwLI6r4ug7eLKulg3eV6lKEuiy8/nQntO/TU/SMJi4XMZaKIyl6mXMxxraZ2pX8a8bSnts0GeGv+NKCP8DOohKZYQiDWcjsm0yWh1sjSHaJeS3/UTd2OA0A9UJd+gD1ifRPCe2eTtAWSlS5N6xxiscTEC82X6yMqeNLfO0MHh48aWXS1A4YunEzUC7Uc1KimDmzRWNhN2WrTAasoH9Y3QThzb4VVnFcDcgAGUDfHaUVHul6AY 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 2024/03/14 16:01, Oscar Salvador wrote: > On Thu, Mar 14, 2024 at 06:47:43AM +0100, Oscar Salvador wrote: >> On Thu, Mar 14, 2024 at 12:01:24PM +0900, Tetsuo Handa wrote: >>> Maybe culprit for a page owner refcount bug reported at >>> https://syzkaller.appspot.com/bug?id=8e4e66dfe299a2a00204ad220c641daaf1486a00 , for >>> that commit went to next-20240214 and syzbot started failing to test since next-20240215 ? >>> >>> Please send this patch to linux-next.git as soon as possible (or can someone experiencing >>> this bug try booting linux-next.git with this patch applied, so that we can check whether >>> syzbot can resume testing linux-next.git), and then send to linux.git together (so that >>> various trees which depend on linux.git won't start failing to boot). >> >> No, that is something else that I already started fixing a few days ago. >> I think I will have the fix ready today. > > I already have the fix. I will do some more testing and then I will send > it out. OK. Please test your patch using https://syzkaller.appspot.com/bug?extid=98c1a1753a0731df2dd4 .