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 0154A4D11A for ; Fri, 9 Feb 2024 13:58:02 +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=1707487084; cv=none; b=T3CPKrCzolSrUd8D8xeY+4Fpxtq8IxRI6malHxHM0h+QR5t/avNoGxRrvT8KYka/pKzzglHUUWVpeIYDe8dMU4spRyvcn9eyiyM2k2zicYOCqFkLe8kwwodnc4gNlCHv6XM5QgirhRLy0exUDABKXw51Hh+OW6IP6McyPu4+Krw= 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=209.85.166.198 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-363bedeec4fso7803015ab.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=QjJlqtaNduFo8L/Xe5Obz29khtBqyva8ocyE/SkzNiBDQnPyILaRhK8ujdWC7RPyD3 gL/W7nBAttiUHjykkJEQIKK7GD3PGYwG8BYyxlfzEa3Zpxw1CX39ZOP9q+4rFO8bmvzY trZdIFijmCE6rHWOQtMaGS8sB7FjoE17uGHe40WDwjNBm9qBOEQxe8LJPDnXJ+gYw8SM Co8QbGxkiGxLm0d258vDsDjJXYqezdYe1owGRb7ryZD4jyTnbCb2M7TzIXvtqAiMU5qt zgdmE2mHLK2/PbXo32faud4Yb/JPg1En4nebaYg9GDhevOutc4ybvDjfpnrpJ2av6Fe+ X8EQ== X-Forwarded-Encrypted: i=1; AJvYcCXlnQeyjveGqmTNPZbIbFeAHpeZR91aXmsdoT+5p/8z3CjVrFfiQ6BqFn8upYPCAQZUWc1qmrcC1UDiWmSSzGc78UrcS39akTV+mVWm X-Gm-Message-State: AOJu0YxjEa5NVlOM0IL6o7qxsxn8SSPqWShOk31XDqN7WwUXIBx6rhW5 hNQyhzgpJ1awzHFzPjuq487WsDCrXCRzT2wEMMuAaMo3rYtONafyJ/4UG2dPDW9V/YSWNCfsJV/ f1ES+O8mPno+oEmO9PCCM42brvJFrOcpIpo8G2h5GBRBs34c+4WzYW3k= X-Google-Smtp-Source: AGHT+IE1Ro5KKyB2KXxAJGaNjl4gJ7od7nzug7FOJ01vkjLcehKwnlBmqmZkRahWgzVJeNq5bjctrle8kWwK5Tq9gBrgLHQw+F9M Precedence: bulk X-Mailing-List: linux-kernel@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