From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f198.google.com (mail-il1-f198.google.com [209.85.166.198]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 4B6C213B5A9 for ; Sun, 1 Dec 2024 23:16:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.198 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733094965; cv=none; b=szsWWZzv+ltpXInJ6CrfEfFbsJJh6umJkKCZy4gN2Vg4TDXbEjtaXJy/Btf2GbLTUqJlxHEyqA+TKJ4eqrvKqRcPcq3nxZxp0mMgB2PZCUzFKztnkqECgiQIQdRssW5P8HLZjwVSUIZTUnKQojKhN4LyFo/PZr/Dr+Mx0CxHg5E= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1733094965; c=relaxed/simple; bh=DlLc6fUy24DJf1H/uIzTLvM87WU1gYL83V5YpszStak=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=bfN+eJFk7iWCedKb5oy/CR/JgJkDq65hFVBm2EFZt137Ct4SEtdJwnSKvFoeNfyZ6SJtYjXLR5iXWlIzsAT3WbweRE1YPRGRVplv6y8Z7fgqoG4PADr2KChA3MoOekwLxKEnNZL0udvmPGbhivNE4SLeTnLSm+IXrtn+oC/2HQE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.198 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-il1-f198.google.com with SMTP id e9e14a558f8ab-3a7e39b48a2so20699415ab.0 for ; Sun, 01 Dec 2024 15:16:04 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1733094963; x=1733699763; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=AspwrmyTLMd5jO7A9zmo1ZUVU6ElmhegbW1Cadgdee4=; b=M4oxcgH86mo3UxbspvJibT16zvvkuXayLK61go+LGQm7rXEji2MdhM8JZ4IyZhs8+h 3ahPyC246Z6Dy+W3NLI1SU0IRf2x84PolE1DW5CnFhxU9kJ9zZ3C3siBLWtJD8BtvQpE CH+jHBOEkvSGrLtLY1rmF+aLQkJ/LEhqA476hSvOVg5hHgeeQ944wQNJdXe6VcW/2uAc cJHWaiA47E5z9gJQ4YOjUjw3/Dz2fnoLoFNPBsrrUB4yoq/nJhUz5o8I+yJAZLiO4oA0 MZjBQtAyH2q2UuZMpww78kAdiha3GtnaF940DFPLhcdCycDRcIvYQByCnW0ElqneNd4x lMbg== X-Forwarded-Encrypted: i=1; AJvYcCWmurxVQ6WVuTSglE94B9wtMfEfYwm8XWtTMyiT5fwICGHayJnxv1oo0GZNr5ofQSLscc+/hNw=@vger.kernel.org X-Gm-Message-State: AOJu0YwUSLkLs9bZpDtU0LHWr+CT2hbuHKwklXTQ8oxHnBK3UdrbAdjX ifw4nuHJ+HSgCtbdOWz8SkEnoICm9CdhLKw6LC6z4NJR27D483Aky1WAwGHZmVDO017FKpAH4f0 0EEO4RwCq7WzMp6AdgpRH45FkZjY2JSLfj4mBORDNb4pMm0dVMI2bnpU= X-Google-Smtp-Source: AGHT+IFdgO7VWoz1ICpvTp5NAPXlQj63DADp03XqbbCbV544dMEp769mRn76SvfLryXTJQSSxg1mJgMJMm+gMq0Zuy0YCzkdOexU Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:190c:b0:3a7:6a98:3fdf with SMTP id e9e14a558f8ab-3a7c5580ea4mr196802765ab.14.1733094963538; 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" 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