Comment 18 for bug 1690570

@ChristianEhrhardt #1 - yea its me

#REPRODUCTION
-download lubuntu x64 14.04.5
-do a standard virtualbox machine clean.. no internet connection
-kernel will be 4.4.0.31
-then basic commands to install samba, cifs and basic share and mount

apt-get update
apt-get install samba cifs-utils
#at the moment samba=4.3.11 cifs-utils=6.0
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mkdir -p /home/d1/samba/share
mkdir -p /home/d1/samba/mount
chown -R d1.d1 /home/d1/samba

nano /etc/samba/smb.conf
    [global]
    security = user
    workgroup = WORKGROUP"

    [share]
    path = /home/d1/samba/share
    writable = yes
    browsable = yes

restart smbd && restart nmbd
mount.cifs //127.0.0.1/share /home/d1/samba/mount -o username=d1,uid=d1,gid=d1
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-at this moment the share is created and mounted; open pcmanfm copy/move any file to the share and it will spam your dmesg with that message
-i tried to make an apport of virtualbox machine seems it gaved some errors..

obs:
-its the same for buntu kernel 4.4.0.75/72
-ive also tested knoppix dvd 7.6.0/kernel 4.2.6-64 and mount.cifs from lubuntu spammed dmesg but mountcifs loop inside knoppix did not; knoppix has mount.cifs.v.6.4; it might be mount.cifs problem..
-ive also tested changing sources.list to debian stable.. it has mount.cifs 6.4; the bug appears both as mount loop and client-server