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Thu, 20 Feb 2025 08:20:02 -0800 (PST) Date: Thu, 20 Feb 2025 08:20:02 -0800 In-Reply-To: <000000000000d0021505f0522813@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67b75632.050a0220.14d86d.02e4.GAE@google.com> Subject: Re: [syzbot] [mm] [fs] possible deadlock in page_cache_ra_unbounded From: syzbot To: akpm@linux-foundation.org, axboe@kernel.dk, brauner@kernel.org, jack@suse.cz, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, reiserfs-devel@vger.kernel.org, syzkaller-bugs@googlegroups.com, willy@infradead.org Content-Type: text/plain; charset="UTF-8" X-Rspamd-Queue-Id: 155CC4001A X-Stat-Signature: 5o9yg46sm1j69frtwqze56mg3ojh8y9d X-Rspam-User: X-Rspamd-Server: rspam10 X-HE-Tag: 1740068402-742728 X-HE-Meta: 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 8GJ8mTCE 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 c3SvGupQ uFQjVQwwu2m7UMKjYPBkF1r7DmiTl0JFdiUUQWW54mU= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000002, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: syzbot suspects this issue was fixed by commit: commit 6f861765464f43a71462d52026fbddfc858239a5 Author: Jan Kara Date: Wed Nov 1 17:43:10 2023 +0000 fs: Block writes to mounted block devices bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=16e867f8580000 start commit: 861deac3b092 Linux 6.7-rc7 git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=e1e118a9228c45d7 dashboard link: https://syzkaller.appspot.com/bug?extid=47c7e14e1bd09234d0ad syz repro: https://syzkaller.appspot.com/x/repro.syz?x=100b9595e80000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1415ff9ee80000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: fs: Block writes to mounted block devices For information about bisection process see: https://goo.gl/tpsmEJ#bisection