From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f200.google.com (mail-il1-f200.google.com [209.85.166.200]) (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 B9B8B30FF13 for ; Wed, 27 Aug 2025 22:06:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.200 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756332368; cv=none; b=fhqYbeNzQ5Et5VKUbGrgo4rOWNUUK1KlSYtE5WVYgcaqNxw1x24WZCbY4YR6OkeyXICne48Mkpd88C4ftC8W86EjzJDVVjswQaU1XZQnwbf6RkY2qrlHf3rLjo9mNgMDbMVvVUYaGk6WpEeaV/rtoZkZH8mogH3mAZZaiVXYgjA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756332368; c=relaxed/simple; bh=zugtUmFKmXUd95pOWvG9+eJCUFGrAuXFxJ0SxcIPf0E=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=jSWfPeVWRqiRpnBz/WhouiDS8ULgit9sK/dancTSJF9e6TIsg2MKEXj1ZJs6YJ47gxs3muyv/UrpoDE7zbCVwV6poTURDF9OcSSzS9qaNDytzOv50pEmDQlI5A+ZGGmFhK1zkUYVq1LmJdy0H1PBK5hWjYC85f7nneuFbSX3etk= 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=209.85.166.200 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-f200.google.com with SMTP id e9e14a558f8ab-3eefbb2da62so7781145ab.3 for ; Wed, 27 Aug 2025 15:06:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1756332366; x=1756937166; 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=lJ679Bni6XBtGixE+p5QoNP6CexqLcPmE0YL0e5I7yA=; b=SaNM6QHcfERItkeR8N39Os1g3cycN8pn2W65MX2+XUp7wIvQ8g97veq+JhXhYBHN8w B48xZroAq86GCH3r5ngWBQ9XTawZIH0OlEXUuOvqONRVF1cHFlDalIjF7D4gzptny5U0 +k/F76+LBu0KHlyDrn7BhTuioFE/GF2fgPDQdho+X83Aa8iPz//iTKCLkKl17rQsIGJ3 ek43KdznChhVAF+5qnkqlXUs581DvCjGDNH0Z1XzG7O9NEIlG0r0UJyj7daaNzC0pk0U fKgMjwW7LzCcIrpAVFTtScKGhUZoltUd0Kvr6DMLf3ETXCH6ZIG/bEUbQfryACdtk7VY zoDg== X-Forwarded-Encrypted: i=1; AJvYcCVVzTKy6WeFQOTm8U+ynWezsyqgrkvHsRYBktOPBxzQXm42D69+T3gu0lBJABTYdgUrJrJ/K9N7271izhM=@vger.kernel.org X-Gm-Message-State: AOJu0YxqGJYcxLuNvKzdX9/sSRTX7FYzKvpyp8WjAb+bLl4G0PdSjcF0 EfFWU26PW0fMqIxUlO4SsA5XR9PM0PxwFGRIvqCpdhfiZeRd3hH8iEhX87UF+/N9uGPGLyVDhXl +ohbVRl6LNxjegcO01VMvthyRCPVz+AvTk7eGwIBynLGFUJwxktMAa31HHTo= X-Google-Smtp-Source: AGHT+IGMKq0uOwnSxJdctgT8VvLStiCZNiRr0oKXEXlFnOuD4HUM01ThZw+YwaoAJWuJJEHbKqlyv0KEFqCXWFb9Nn+Zxv+c4Gey Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:4801:b0:3ea:8acc:9dac with SMTP id e9e14a558f8ab-3ea8acc9fa9mr214136735ab.2.1756332365874; Wed, 27 Aug 2025 15:06:05 -0700 (PDT) Date: Wed, 27 Aug 2025 15:06:05 -0700 In-Reply-To: <20250827213813.5905-1-hdanton@sina.com> X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68af814d.050a0220.8762d.0000.GAE@google.com> Subject: Re: [syzbot] [block?] [ext4?] [btrfs?] INFO: rcu detected stall in sys_mount (8) From: syzbot To: hdanton@sina.com, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch and the reproducer did not trigger any issue: Reported-by: syzbot+4507914ec56d21bb39ed@syzkaller.appspotmail.com Tested-by: syzbot+4507914ec56d21bb39ed@syzkaller.appspotmail.com Tested on: commit: fb924b7b change_mnt_propagation(): calculate propagati.. git tree: vfs-fixes console output: https://syzkaller.appspot.com/x/log.txt?x=120adef0580000 kernel config: https://syzkaller.appspot.com/x/.config?x=2e92a122a0cf6f2a dashboard link: https://syzkaller.appspot.com/bug?extid=4507914ec56d21bb39ed compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7 userspace arch: arm64 Note: no patches were applied. Note: testing is done by a robot and is best-effort only.