From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) (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 23B514D11B for ; Fri, 9 Feb 2024 13:58:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707487084; cv=none; b=PqnQwNzqvKsnFIyH8IL3c1vMYeMl4tmS9X9+ftzw+K8bi8MzTwooaVh4jqqDx+yAX57ZNRKftW91ie/f1USF1tT3isLudA2ZdThaywr571iyqCdNXH7B5ycYPQhSti00xk03JUjFRwB4fTFpzsxFNbcc7pw7VtpskfwFb76tokI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707487084; c=relaxed/simple; bh=KgvrOHqW/nOwXmmrHWcgs42V7NoASj+/ZUYp4NpDRp0=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=qeIMvizqnos4VOmea8AbwhbpE1aYYnJxqWPsOtkapepHIUSd1o/hys0wP7GO4cEYVFcnG9nDW4NnYgk8E49/0uh6qrMbnZmY+Jn9wLWdkMPmsF5lY5z59a4CHgDiTIbNUntoT/fqO1q7tkRqnb1uMEWIfFmgBLCU+x67ZyYwIZg= 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=209.85.166.199 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-f199.google.com with SMTP id e9e14a558f8ab-363bedeec4fso7802995ab.1 for ; Fri, 09 Feb 2024 05:58:02 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1707487082; x=1708091882; 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=BGMm3AEkbwxMmZYoWinLQYL05MhebYQIefChB73Qd5Q=; b=EYQvZwdJHjPxr3FRJGINmtXl+LWHETShLZp3TCia1uUwuDem4yXzSH8jvj0Cn0bXJQ GnvWSLsiBzYgJ1ZKKmEEik5+AbNK5zzI62Tvv2uKk8rDSAhRYzchgvBCU41T6gWNPIn7 mcXhbVB9z5uWe9lHNxrczys9IOCXWh0v35jLgGBkGeJFrynqJBD6AY9CvjupBtwe/aOx K46GwuMp7kkIKRsvjLeoKM+fs66QSZmuHc0npzZsS+HCLDtdHRlDmbUX5mXe44IwlRfF +wIWGdHECroT7C9I5x0BdZbog5tkyRYWzR54IUoLfwHLM+dm+G+E8AmrW4pk44OJM3m1 Ssrg== X-Forwarded-Encrypted: i=1; AJvYcCXs9733+hbUGtuVSv22/g9CcxpmVC9FZKPw/Vlk0thJ8vlcvxfp78vgGw8XDIzlg0YDUhhm8CFr1GW0MkHsv/swUOFBnXEr1r1hpd8= X-Gm-Message-State: AOJu0YxQAGANzfpjyu36KrQTnW4sJYxbtxPVsuxAQ/z8kf34JTBZKWIE PHQvgkP5PaRmKEVaZ6NhZOYZc/smubNZcKuLnKGf/kUm/wNuVyT0NvZ0cQb0FGvtCkqJ4uCHyMg YmVKyFajKYSegnVnQmggkcxVG8h5LB3XafLS3kFxFGzFK3W84UGFLzR0= X-Google-Smtp-Source: AGHT+IE1Ro5KKyB2KXxAJGaNjl4gJ7od7nzug7FOJ01vkjLcehKwnlBmqmZkRahWgzVJeNq5bjctrle8kWwK5Tq9gBrgLHQw+F9M Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:2190:b0:363:bc70:f1b1 with SMTP id j16-20020a056e02219000b00363bc70f1b1mr101138ila.2.1707487082274; Fri, 09 Feb 2024 05:58:02 -0800 (PST) Date: Fri, 09 Feb 2024 05:58:02 -0800 In-Reply-To: <000000000000ce2dde0610db47a8@google.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ff69600610f35011@google.com> Subject: Re: [syzbot] [media?] possible deadlock in v4l2_ctrl_handler_log_status From: syzbot To: benjamin.gaignard@collabora.com, daniel.almeida@collabora.com, hdanton@sina.com, hverkuil-cisco@xs4all.nl, linux-kernel@vger.kernel.org, linux-media@vger.kernel.org, mchehab@kernel.org, nicolas.dufresne@collabora.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" syzbot has bisected this issue to: commit 9801b5b28c6929139d6fceeee8d739cc67bb2739 Author: Hans Verkuil Date: Wed Jan 17 14:52:04 2024 +0000 media: v4l2-ctrls: show all owned controls in log_status bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1278acec180000 start commit: b1d3a0e70c38 Add linux-next specific files for 20240208 git tree: linux-next final oops: https://syzkaller.appspot.com/x/report.txt?x=1178acec180000 console output: https://syzkaller.appspot.com/x/log.txt?x=1678acec180000 kernel config: https://syzkaller.appspot.com/x/.config?x=bb693ba195662a06 dashboard link: https://syzkaller.appspot.com/bug?extid=9948f8e188482c5d1a3e syz repro: https://syzkaller.appspot.com/x/repro.syz?x=148953c4180000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1746f9b7e80000 Reported-by: syzbot+9948f8e188482c5d1a3e@syzkaller.appspotmail.com Fixes: 9801b5b28c69 ("media: v4l2-ctrls: show all owned controls in log_status") For information about bisection process see: https://goo.gl/tpsmEJ#bisection