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From:   Namjae Jeon <linkinjeon@kernel.org>
Date:   Wed, 17 Nov 2021 08:36:53 +0900
Message-ID: <CAKYAXd-KmxMeYWP8z6RYYK6za-Sj81Qtb3RO=oG+Yy3kXDaLjg@mail.gmail.com>
Subject: Re: ksmbd: Unsupported addition info
To:     Oleksandr Natalenko <oleksandr@natalenko.name>
Cc:     Sergey Senozhatsky <senozhatsky@chromium.org>,
        Steve French <sfrench@samba.org>,
        Hyunchul Lee <hyc.lee@gmail.com>, linux-cifs@vger.kernel.org,
        linux-kernel@vger.kernel.org
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2021-11-17 6:44 GMT+09:00, Oleksandr Natalenko <oleksandr@natalenko.name>:
> Hello Namjae et al.
Hi Oleksandr,
>
> 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 cli=
ent
> 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
> na=C3=AFvely
> hoped it would be fixed automagically :). This never happened to me with
> userspace Samba though.
>
> This is my smb.conf:
>
> ```
> [global]
> workgroup =3D KANAPKA
> server string =3D ksmbd server %v
> netbios name =3D defiant
> valid users =3D __guest
>
> [Shared]
> valid users =3D __guest
> path =3D /mnt/shared
> force user =3D _shared
> force group =3D _shared
> browsable =3D no
> writeable =3D yes
> veto files =3D /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?

Thanks!
>
> Thanks.
>
> --
> Oleksandr Natalenko (post-factum)
>
>
>