From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2B259C35669 for ; Sun, 23 Feb 2020 01:52:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F25BF206EF for ; Sun, 23 Feb 2020 01:52:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726965AbgBWBwp (ORCPT ); Sat, 22 Feb 2020 20:52:45 -0500 Received: from ishtar.tlinx.org ([173.164.175.65]:50994 "EHLO Ishtar.sc.tlinx.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726884AbgBWBwp (ORCPT ); Sat, 22 Feb 2020 20:52:45 -0500 Received: from [192.168.3.12] (Athenae [192.168.3.12]) by Ishtar.sc.tlinx.org (8.14.7/8.14.4/SuSE Linux 0.8) with ESMTP id 01N1qgA2080730; Sat, 22 Feb 2020 17:52:44 -0800 Message-ID: <5E51DAEA.8090702@tlinx.org> Date: Sat, 22 Feb 2020 17:52:42 -0800 From: L Walsh User-Agent: Thunderbird MIME-Version: 1.0 To: linux-cifs , Linux-Kernel Subject: Regression -- linux 5.5.3: can no longer mount with unix extentions using cifs 2.1 (Win10-only client additions) Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-cifs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-cifs@vger.kernel.org hard links and serverino numbers, among other things used to work when mounting a win7 client using a linux cifs client I tried this today, and am getting: [701913.978407] CIFS VFS: Autodisabling the use of server inode numbers on \\Athenae\C. [701913.986151] CIFS VFS: The server doesn't seem to support them properly or the files might be on different servers (DFS). [701913.997116] CIFS VFS: Hardlinks will not be recognized on this mount. Consider mounting with the "noserverino" option to silence this message. [703793.287615] CIFS VFS: Server does not support mounting with posix SMB3.11 extensions. [703793.295810] CIFS VFS: cifs_mount failed w/return code = -95 The win7 workstation in question is running 1 hard disk, no DFS. Unix extensions worked long before SMB3.x. It seems there is ongoing work to disable SMB2.1 support and replace it with only latest SMB from MS compatible with Win10. If MS wants to backport SMB3.x to Win7, that would be fine, but I doubt that is going to happen. NTL, if they keep breaking 2.1 compatibility that would be one option.