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Sun, 01 Dec 2024 15:16:03 -0800 (PST) Date: Sun, 01 Dec 2024 15:16:03 -0800 In-Reply-To: <673913ac.050a0220.e8d8d.016b.GAE@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <674cee33.050a0220.48a03.0019.GAE@google.com> Subject: Re: [syzbot] [batman?] [mm?] [ext4?] INFO: rcu detected stall in rescuer_thread From: syzbot To: a@unstable.cc, b.a.t.m.a.n@lists.open-mesh.org, davem@davemloft.net, edumazet@google.com, gregkh@linuxfoundation.org, horms@kernel.org, kuba@kernel.org, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, mareklindner@neomailbox.ch, netdev@vger.kernel.org, oneukum@suse.com, pabeni@redhat.com, rafael@kernel.org, stern@rowland.harvard.edu, sven@narfation.org, sw@simonwunderlich.de, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam05 X-Stat-Signature: m1rck1kf93yhwx1s5pduy7gjhpo3noct X-Rspamd-Queue-Id: 022E9140003 X-Rspam-User: X-HE-Tag: 1733094955-884617 X-HE-Meta: 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 WUvVrl+Z 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 oPDWRWs9 kZrtOxlSTVrfKtiioxTSuv4yHq7v4DjOVuWml6u/tLUQ/+eftqCUzhIRrypb3Hj9dvY4ip65orhVO6o8KJtKE8L1Mt1ObUfA8Zb1lGtw5lgTvxWOo14GhBqiFL8OTPmv4GGgCgER2fZUKLP9kJ2tA/LYpCo4GeMx/+HK+IRT/VE= 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 b3e40fc85735b787ce65909619fcd173107113c2 Author: Oliver Neukum Date: Thu May 2 11:51:40 2024 +0000 USB: usb_parse_endpoint: ignore reserved bits bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=10553d30580000 start commit: cfaaa7d010d1 Merge tag 'net-6.12-rc8' of git://git.kernel... git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=12553d30580000 console output: https://syzkaller.appspot.com/x/log.txt?x=14553d30580000 kernel config: https://syzkaller.appspot.com/x/.config?x=d2aeec8c0b2e420c dashboard link: https://syzkaller.appspot.com/bug?extid=76e180c757e9d589a79d syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14486b5f980000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=112182e8580000 Reported-by: syzbot+76e180c757e9d589a79d@syzkaller.appspotmail.com Fixes: b3e40fc85735 ("USB: usb_parse_endpoint: ignore reserved bits") For information about bisection process see: https://goo.gl/tpsmEJ#bisection