linux-kernel - Re: ksmbd: Unsupported addition info

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Date:   Wed, 17 Nov 2021 08:00:43 +0100
From:   Oleksandr Natalenko <oleksandr@...alenko.name>
To:     Namjae Jeon <linkinjeon@...nel.org>
Cc:     Sergey Senozhatsky <senozhatsky@...omium.org>,
        Steve French <sfrench@...ba.org>,
        Hyunchul Lee <hyc.lee@...il.com>, linux-cifs@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: ksmbd: Unsupported addition info

Hello.

On středa 17. listopadu 2021 0:36:53 CET Namjae Jeon wrote:
> 2021-11-17 6:44 GMT+09:00, Oleksandr Natalenko <oleksandr@...alenko.name>:
> > With the latest ksmbd from the next branch I have an issue with wife's
> > Windows
> > 10 laptop while copying/removing files from the network share. On her
> > client it
> > looks like copy operation (server -> laptop) reaches 99% and then stalls,
> > and
> > on the server side there's this in the kernel log:
> > 
> > ```
> > ksmbd: Unsupported addition info: 0xf)
> > ksmbd: Unsupported addition info: 0x20)
> > ```
> > 
> > repeated multiple times. I must note that in fact the file gets copied to
> > her
> > laptop, but Windows copy dialog just hangs.
> > 
> > Any idea what it could be and how to avoid it? This also happened before
> > (I'm
> > a pretty early ksmbd adopter), but I'm reporting it just now because I
> > naïvely
> > hoped it would be fixed automagically :). This never happened to me with
> > userspace Samba though.
> > 
> > This is my smb.conf:
> > 
> > ```
> > [global]
> > workgroup = KANAPKA
> > server string = ksmbd server %v
> > netbios name = defiant
> > valid users = __guest
> > 
> > [Shared]
> > valid users = __guest
> > path = /mnt/shared
> > force user = _shared
> > force group = _shared
> > browsable = no
> > writeable = yes
> > veto files = /lost+found/
> > ```
> > 
> > Appreciate your time and looking forward to your response.
> 
> Thanks for your report, I have seen same symptom before, I thought it
> was a windows issue as it is also reproduced against samba. If you
> wait for a few minutes, does not the 99% message window close?

Eventually it does close on its own in a minute or so. Also, it may close 
after clicking the "X" (close) button, but not instantly.

-- 
Oleksandr Natalenko (post-factum)