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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-MailFrom: 3M-5MZwkbAIQ067sittmzixxql.owwotm20mzkwv1mv1.kwu@M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com X-Mailman-Rule-Hits: nonmember-moderation X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-b.a.t.m.a.n.lists.open-mesh.org-0; header-match-b.a.t.m.a.n.lists.open-mesh.org-1; header-match-b.a.t.m.a.n.lists.open-mesh.org-2 Message-ID-Hash: RU4YTL3STZEJBN2HUU5HOS5IJ2M5UHIK X-Message-ID-Hash: RU4YTL3STZEJBN2HUU5HOS5IJ2M5UHIK X-Mailman-Approved-At: Mon, 02 Dec 2024 11:26:30 +0100 X-Mailman-Version: 3.3.8 Precedence: list List-Id: The list for a Better Approach To Mobile Ad-hoc Networking Archived-At: List-Archive: List-Help: List-Owner: List-Post: 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