linux-kernel - Re: Regression -- linux 5.5.3: can no longer mount with unix extentions using cifs 2.1 (Win10-only client additions)

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Date:   Mon, 24 Feb 2020 12:05:11 +0100
From:   Aurélien Aptel <aaptel@...e.com>
To:     L Walsh <cifs@...nx.org>, linux-cifs <linux-cifs@...r.kernel.org>,
        Linux-Kernel <linux-kernel@...r.kernel.org>
Subject: Re: Regression -- linux 5.5.3: can no longer mount with unix
 extentions using cifs 2.1 (Win10-only client additions)

Hi,

L Walsh <cifs@...nx.org> writes:
> 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. 

* UNIX extension are smb1 only and are only implemented by the Samba
  server (not windows).
* POSIX extensions are for smb2+ and are still experimental.

The fact that serverino gets disabled looks like a bug. As Steve said,
the problem seems to be related to ACL.

You should open a bug and provide dmesg and network capture as
documented here:

https://wiki.samba.org/index.php/Bug_Reporting#cifs.ko

Cheers,
-- 
Aurélien Aptel / SUSE Labs Samba Team
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