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[2003:cb:c749:9100:c078:eec6:f2f4:dd3b]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-37d4b6ce001sm3549032f8f.47.2024.10.11.03.11.50 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 11 Oct 2024 03:11:51 -0700 (PDT) Message-ID: Date: Fri, 11 Oct 2024 12:11:50 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [syzbot] [mm?] linux-next test error: kernel BUG in folio_add_new_anon_rmap To: Aleksandr Nogikh Cc: syzbot , akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-next@vger.kernel.org, sfr@canb.auug.org.au, syzkaller-bugs@googlegroups.com References: <6704d667.050a0220.1e4d62.0082.GAE@google.com> <5e42fd02-1470-4e4e-892b-edefd32fbc5a@redhat.com> From: David Hildenbrand Autocrypt: addr=david@redhat.com; keydata= xsFNBFXLn5EBEAC+zYvAFJxCBY9Tr1xZgcESmxVNI/0ffzE/ZQOiHJl6mGkmA1R7/uUpiCjJ dBrn+lhhOYjjNefFQou6478faXE6o2AhmebqT4KiQoUQFV4R7y1KMEKoSyy8hQaK1umALTdL QZLQMzNE74ap+GDK0wnacPQFpcG1AE9RMq3aeErY5tujekBS32jfC/7AnH7I0v1v1TbbK3Gp XNeiN4QroO+5qaSr0ID2sz5jtBLRb15RMre27E1ImpaIv2Jw8NJgW0k/D1RyKCwaTsgRdwuK Kx/Y91XuSBdz0uOyU/S8kM1+ag0wvsGlpBVxRR/xw/E8M7TEwuCZQArqqTCmkG6HGcXFT0V9 PXFNNgV5jXMQRwU0O/ztJIQqsE5LsUomE//bLwzj9IVsaQpKDqW6TAPjcdBDPLHvriq7kGjt WhVhdl0qEYB8lkBEU7V2Yb+SYhmhpDrti9Fq1EsmhiHSkxJcGREoMK/63r9WLZYI3+4W2rAc UucZa4OT27U5ZISjNg3Ev0rxU5UH2/pT4wJCfxwocmqaRr6UYmrtZmND89X0KigoFD/XSeVv jwBRNjPAubK9/k5NoRrYqztM9W6sJqrH8+UWZ1Idd/DdmogJh0gNC0+N42Za9yBRURfIdKSb B3JfpUqcWwE7vUaYrHG1nw54pLUoPG6sAA7Mehl3nd4pZUALHwARAQABzSREYXZpZCBIaWxk ZW5icmFuZCA8ZGF2aWRAcmVkaGF0LmNvbT7CwZgEEwEIAEICGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAhkBFiEEG9nKrXNcTDpGDfzKTd4Q9wD/g1oFAl8Ox4kFCRKpKXgACgkQTd4Q 9wD/g1oHcA//a6Tj7SBNjFNM1iNhWUo1lxAja0lpSodSnB2g4FCZ4R61SBR4l/psBL73xktp rDHrx4aSpwkRP6Epu6mLvhlfjmkRG4OynJ5HG1gfv7RJJfnUdUM1z5kdS8JBrOhMJS2c/gPf wv1TGRq2XdMPnfY2o0CxRqpcLkx4vBODvJGl2mQyJF/gPepdDfcT8/PY9BJ7FL6Hrq1gnAo4 3Iv9qV0JiT2wmZciNyYQhmA1V6dyTRiQ4YAc31zOo2IM+xisPzeSHgw3ONY/XhYvfZ9r7W1l pNQdc2G+o4Di9NPFHQQhDw3YTRR1opJaTlRDzxYxzU6ZnUUBghxt9cwUWTpfCktkMZiPSDGd KgQBjnweV2jw9UOTxjb4LXqDjmSNkjDdQUOU69jGMUXgihvo4zhYcMX8F5gWdRtMR7DzW/YE BgVcyxNkMIXoY1aYj6npHYiNQesQlqjU6azjbH70/SXKM5tNRplgW8TNprMDuntdvV9wNkFs 9TyM02V5aWxFfI42+aivc4KEw69SE9KXwC7FSf5wXzuTot97N9Phj/Z3+jx443jo2NR34XgF 89cct7wJMjOF7bBefo0fPPZQuIma0Zym71cP61OP/i11ahNye6HGKfxGCOcs5wW9kRQEk8P9 M/k2wt3mt/fCQnuP/mWutNPt95w9wSsUyATLmtNrwccz63XOwU0EVcufkQEQAOfX3n0g0fZz Bgm/S2zF/kxQKCEKP8ID+Vz8sy2GpDvveBq4H2Y34XWsT1zLJdvqPI4af4ZSMxuerWjXbVWb T6d4odQIG0fKx4F8NccDqbgHeZRNajXeeJ3R7gAzvWvQNLz4piHrO/B4tf8svmRBL0ZB5P5A 2uhdwLU3NZuK22zpNn4is87BPWF8HhY0L5fafgDMOqnf4guJVJPYNPhUFzXUbPqOKOkL8ojk CXxkOFHAbjstSK5Ca3fKquY3rdX3DNo+EL7FvAiw1mUtS+5GeYE+RMnDCsVFm/C7kY8c2d0G NWkB9pJM5+mnIoFNxy7YBcldYATVeOHoY4LyaUWNnAvFYWp08dHWfZo9WCiJMuTfgtH9tc75 7QanMVdPt6fDK8UUXIBLQ2TWr/sQKE9xtFuEmoQGlE1l6bGaDnnMLcYu+Asp3kDT0w4zYGsx 5r6XQVRH4+5N6eHZiaeYtFOujp5n+pjBaQK7wUUjDilPQ5QMzIuCL4YjVoylWiBNknvQWBXS lQCWmavOT9sttGQXdPCC5ynI+1ymZC1ORZKANLnRAb0NH/UCzcsstw2TAkFnMEbo9Zu9w7Kv AxBQXWeXhJI9XQssfrf4Gusdqx8nPEpfOqCtbbwJMATbHyqLt7/oz/5deGuwxgb65pWIzufa N7eop7uh+6bezi+rugUI+w6DABEBAAHCwXwEGAEIACYCGwwWIQQb2cqtc1xMOkYN/MpN3hD3 AP+DWgUCXw7HsgUJEqkpoQAKCRBN3hD3AP+DWrrpD/4qS3dyVRxDcDHIlmguXjC1Q5tZTwNB boaBTPHSy/Nksu0eY7x6HfQJ3xajVH32Ms6t1trDQmPx2iP5+7iDsb7OKAb5eOS8h+BEBDeq 3ecsQDv0fFJOA9ag5O3LLNk+3x3q7e0uo06XMaY7UHS341ozXUUI7wC7iKfoUTv03iO9El5f XpNMx/YrIMduZ2+nd9Di7o5+KIwlb2mAB9sTNHdMrXesX8eBL6T9b+MZJk+mZuPxKNVfEQMQ a5SxUEADIPQTPNvBewdeI80yeOCrN+Zzwy/Mrx9EPeu59Y5vSJOx/z6OUImD/GhX7Xvkt3kq Er5KTrJz3++B6SH9pum9PuoE/k+nntJkNMmQpR4MCBaV/J9gIOPGodDKnjdng+mXliF3Ptu6 3oxc2RCyGzTlxyMwuc2U5Q7KtUNTdDe8T0uE+9b8BLMVQDDfJjqY0VVqSUwImzTDLX9S4g/8 kC4HRcclk8hpyhY2jKGluZO0awwTIMgVEzmTyBphDg/Gx7dZU1Xf8HFuE+UZ5UDHDTnwgv7E th6RC9+WrhDNspZ9fJjKWRbveQgUFCpe1sa77LAw+XFrKmBHXp9ZVIe90RMe2tRL06BGiRZr jPrnvUsUUsjRoRNJjKKA/REq+sAnhkNPPZ/NNMjaZ5b8Tovi8C0tmxiCHaQYqj7G2rgnT0kt WNyWQQ== Organization: Red Hat In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Rspam-User: X-Stat-Signature: jqhu44kmkpwpx56fujmom4t5bgrpq3s4 X-Rspamd-Queue-Id: 53A124001A X-Rspamd-Server: rspam02 X-HE-Tag: 1728641513-71689 X-HE-Meta: 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 sD2Rg88X 5zWMlxOH8612WvIEaJ9KYBZ2h3BjWrv57uSFO7LPe6e15yq3cALnQLdfXLckqnEjGMxiuEWT4kgLqezJM5/jh8pJAC1t2eqQhWt1nhlW3P6xSARG1FnMZLcN2ZEI9wFEe+93bsvH8JOvuwMTo9NFJnfk+Xv1E9vJ9fqhtXxVI1jANQRffnzaqt7zVcR6UiZCt+FayaunMmbBGZvdDU/XCQSezOVGfSiWqoLmnbukohLT+wZPgNsT2p62CCt7Asmo9BKeMTegHQJOuarhndrsNSPuWV0WLjQhtQ0wOPo1lu4AcVecrXIiVLwbGyMkIiccseSox2CezbyX73FqBKPIgO6aYfEJJnn61sLKUPSRviFI/7S8jfOG/LjpNo1c0yptp7bMcxdnEAPgb2ru5wrXZOeWhs9qvMDXJzbfNUjIu8gtYik/pWcWh5biwFmTuY2uouboKmfbhN3/gebyIEG3FJZKKefUJrbGZ8AUAQiYQdu83KJaj8s43Dp3Wfy4FiXu6+7kR1aJS0viNSh/FfXusJg7Mk+EX4D9RQ7Kt3ovinatjZhlwBFQLDqvfOVXjxz+yq8Q38DFAyIbJiRfFp/YnsrFKp3LQBhGh18JLtoNfuQSgodU6UvsqI6a/51ctmXMIlD8D X-Bogosity: Ham, tests=bogofilter, spamicity=0.000001, 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 11.10.24 12:05, Aleksandr Nogikh wrote: > Hi David, > > On Tue, Oct 8, 2024 at 3:11 PM David Hildenbrand wrote: >> >> On 08.10.24 08:51, syzbot wrote: >>> Hello, >>> >>> syzbot found the following issue on: > < ... > >>> >> >> #syz fix: mm-add-pageanonnotksm-fix > > Just curious: this is not the commit title that will be preserved when > the commit reaches the torvalds tree, right? No, the fixup patch is currently in mm-unstable and will be squashed into the responsible commit once Andrew moves it to mm-stable. So neither commit ID nor subject are final. > > Syzbot uses commit titles to track which fuzzed kernel trees have > received each bug fix, so in this case the bot will become very > confused. If the final title is known, it's better to use that in the > syz fix command. That's unfortunate, but that's the way linux-next works :/ -- Cheers, David / dhildenb