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Fri, 18 Oct 2024 08:23:02 -0700 (PDT) Date: Fri, 18 Oct 2024 08:23:02 -0700 In-Reply-To: <46d8cfe7db6f381c99455159bff1c2220dff4aed.camel@huaweicloud.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67127d56.050a0220.10f4f4.0016.GAE@google.com> Subject: Re: [syzbot] [integrity?] [lsm?] possible deadlock in process_measurement (4) From: syzbot To: akpm@linux-foundation.org, dmitry.kasatkin@gmail.com, ebpqwerty472123@gmail.com, eric.snowberg@oracle.com, hughd@google.com, jmorris@namei.org, linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-security-module@vger.kernel.org, paul@paul-moore.com, roberto.sassu@huawei.com, roberto.sassu@huaweicloud.com, serge@hallyn.com, stephen.smalley.work@gmail.com, syzkaller-bugs@googlegroups.com, zohar@linux.ibm.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 48AC020016 X-Stat-Signature: 65k73b9jb4wfuqtpxwo1a9pk6fih1h4p X-Rspamd-Server: rspam09 X-Rspam-User: X-HE-Tag: 1729264972-439783 X-HE-Meta: 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 p+w4hNIn 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 H2wE/59x 5MCd4ZPB+xiCLHNKw9/ml7mjIwuYrBk9bI3N18UHZacvamSYjAM6AYLQK7rh0hr/lD2E7C3LWAo= 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: Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+1cd571a672400ef3a930@syzkaller.appspotmail.com Tested-by: syzbot+1cd571a672400ef3a930@syzkaller.appspotmail.com Tested on: commit: 31063ab7 mm: Split locks in remap_file_pages() git tree: https://github.com/robertosassu/linux.git remap-file-pages-locking-v1 console output: https://syzkaller.appspot.com/x/log.txt?x=15502240580000 kernel config: https://syzkaller.appspot.com/x/.config?x=5b6f5c91e13aedf5 dashboard link: https://syzkaller.appspot.com/bug?extid=1cd571a672400ef3a930 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.