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Wed, 15 Jan 2025 00:39:02 -0800 (PST) Date: Wed, 15 Jan 2025 00:39:02 -0800 In-Reply-To: <6712465a.050a0220.1e4b4d.0012.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67877426.050a0220.20d369.0009.GAE@google.com> Subject: Re: [syzbot] [fs?] [mm?] INFO: rcu detected stall in sys_readlink (5) From: syzbot To: anna-maria@linutronix.de, davem@davemloft.net, frederic@kernel.org, gregkh@linuxfoundation.org, jhs@mojatatu.com, jiri@resnulli.us, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-usb@vger.kernel.org, netdev@vger.kernel.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de, tj@kernel.org, vinicius.gomes@intel.com, xiyou.wangcong@gmail.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: 7A3A18000E X-Stat-Signature: 5wdrsapgntpj9p58nzuue6c3spemg3z8 X-Rspam-User: X-HE-Tag: 1736930343-693230 X-HE-Meta: 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 Kyk7SzVY 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 8yeMq7Id qQGk2Jp5CPzUrUHUdvgAKn1b0xWFHWF1e5sha61d5mwmW+xWLPaB4hmyNQ/9EOi31SbGMbAb/CoUwjbep5KDksi0NXyCe8PQw+bKHH0uTYU5mcbbVuneLkiPgCc2h8sOwYOJ1u16gW56H0ykXysISaAB0VzcvwURZn1a/OjqU7ABEh7XSym4LQgZENalx4SJOlQVDFDZ8lPqs5G5wLfQaQ== 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: syzbot has bisected this issue to: commit 5a781ccbd19e4664babcbe4b4ead7aa2b9283d22 Author: Vinicius Costa Gomes Date: Sat Sep 29 00:59:43 2018 +0000 tc: Add support for configuring the taprio scheduler bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=124487c4580000 start commit: 7dc8f809b87d Merge tag 'linux-can-next-for-6.14-20250110' .. git tree: net-next final oops: https://syzkaller.appspot.com/x/report.txt?x=114487c4580000 console output: https://syzkaller.appspot.com/x/log.txt?x=164487c4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=28dc37e0ec0dfc41 dashboard link: https://syzkaller.appspot.com/bug?extid=23e14ec82f3c8692eaa9 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1634f218580000 Reported-by: syzbot+23e14ec82f3c8692eaa9@syzkaller.appspotmail.com Fixes: 5a781ccbd19e ("tc: Add support for configuring the taprio scheduler") For information about bisection process see: https://goo.gl/tpsmEJ#bisection