samba - May 2014 - Samba4 bug - "mount error(5): Input/output error"

Hi Rowland,

do you maybe have any idea what could potentially cause this bug? 
smbclient thrwos me back a

mount error(5): Input/output error

when I try to mount the remote smbFS. It doesn't happen with my MacOSx 
and Windows 7 as client but it happens with Linux OSs and with a Konica 
Minolta copy machine with a scanner to samba function. The first try to 
mount fails with the above error. The second try will be a success right 
away without any errors. I don't understand what causes this behaviour?! 
I thought you may have an idea?
Thank you



Samba Server is Version 4.1.7 and it's running on a FreeBSD 10.0 RELEASE 
(fresh installation)
Samba client (eg. on Linux) is Version 3.5.4-0.83.el5_7.2
mount cmd on (eg. Linux is):

mount -t cifs //10.0.0.200/MYSHARE -o 
username="${SMB_USR}",password="${SMB_PWD}",sec=ntlmv2
/mnt/MyShare

Below is my config, if useful:

cat << EOF > /usr/local/etc/smb4.conf
# ================================== #
#        Samba4 - FileServer         #
# ================================== #


# ============= Global ============= #

[global]

   # Basic server settings
   workgroup          = $( echo ${DOMAINNAME^^} | awk -F'.' '{print
$1}' )
   realm              = ${DOMAINNAME^^}
   netbios name       = ${SERVERNAME^^}

   # Password backend
   passdb backend     = tdbsam

   # Logging
   log level    = 4
  #log level    = auth:3
   max log size = 0

   # NTLMv2
   ntlm auth          = No
   lanman auth        = No
   client ntlmv2 auth = Yes

   # Printing
   load printers = No
   printing      = BSD
   printcap name = /dev/null

   # Default masks
   unix extensions      = No
   create mask          = 0777
   force create mode    = 0777
   directory mask       = 0777
   force directory mode = 0777

   # Miscellaneous
   veto oplock files  = /*.doc/*.xls/*.ppt/*.mdb/*.docx/*.xlsx/*.ppt
   veto files         = 
/.snap/.windows/.zfs/Thumbs.db/.DS_Store/._.DS_Store/.apdisk/.TemporaryItems/
   wide links         = No


# ============= Shares ============= #

[...]

[MyShare]
   comment     = MyShare - Storage
   path        = /mnt/MyShare
   guest ok    = No
   read only   = No
   valid users =  myuser, leander, patrick
   force user  =  myuser
   vfs objects = recycle, zfsacl, streams_xattr
   nfs4:mode   = special
   nfs4:acedup = merge
   nfs4:chown  = yes
   zfsacl:acesort = dontcare
   recycle:repository     = /mnt/vMachines/.Trashes
   recycle:directory_mode = 0777
   recycle:keeptree       = Yes
   recycle:versions       = Yes
   recycle:touch          = Yes
   recycle:touch_mtime    = No
   recycle:exclude        = ?~$*,~$*,._*,.smbdelete*

[...]
EOF
chmod 0644       /usr/local/etc/smb4.conf
chown root:wheel /usr/local/etc/smb4.conf


Kind regards,
Leander

On 11/05/14 10:00, Leander Sch?fer wrote:
> Hi Rowland,
>
> do you maybe have any idea what could potentially cause this bug? 
> smbclient thrwos me back a
>
> mount error(5): Input/output error
>
> when I try to mount the remote smbFS. It doesn't happen with my MacOSx 
> and Windows 7 as client but it happens with Linux OSs and with a 
> Konica Minolta copy machine with a scanner to samba function. The 
> first try to mount fails with the above error. The second try will be 
> a success right away without any errors. I don't understand what 
> causes this behaviour?! I thought you may have an idea?
> Thank you
>
>
>
> Samba Server is Version 4.1.7 and it's running on a FreeBSD 10.0 
> RELEASE (fresh installation)
> Samba client (eg. on Linux) is Version 3.5.4-0.83.el5_7.2
> mount cmd on (eg. Linux is):
>
> mount -t cifs //10.0.0.200/MYSHARE -o 
> username="${SMB_USR}",password="${SMB_PWD}",sec=ntlmv2
/mnt/MyShare
>
> Below is my config, if useful:
>
> cat << EOF > /usr/local/etc/smb4.conf
> # ================================== #
> #        Samba4 - FileServer         #
> # ================================== #
>
>
> # ============= Global ============= #
>
> [global]
>
>   # Basic server settings
>   workgroup          = $( echo ${DOMAINNAME^^} | awk -F'.'
'{print $1}' )
>   realm              = ${DOMAINNAME^^}
>   netbios name       = ${SERVERNAME^^}
>
>   # Password backend
>   passdb backend     = tdbsam
>
>   # Logging
>   log level    = 4
>  #log level    = auth:3
>   max log size = 0
>
>   # NTLMv2
>   ntlm auth          = No
>   lanman auth        = No
>   client ntlmv2 auth = Yes
>
>   # Printing
>   load printers = No
>   printing      = BSD
>   printcap name = /dev/null
>
>   # Default masks
>   unix extensions      = No
>   create mask          = 0777
>   force create mode    = 0777
>   directory mask       = 0777
>   force directory mode = 0777
>
>   # Miscellaneous
>   veto oplock files  = /*.doc/*.xls/*.ppt/*.mdb/*.docx/*.xlsx/*.ppt
>   veto files         = 
>
/.snap/.windows/.zfs/Thumbs.db/.DS_Store/._.DS_Store/.apdisk/.TemporaryItems/
>   wide links         = No
>
>
> # ============= Shares ============= #
>
> [...]
>
> [MyShare]
>   comment     = MyShare - Storage
>   path        = /mnt/MyShare
>   guest ok    = No
>   read only   = No
>   valid users =  myuser, leander, patrick
>   force user  =  myuser
>   vfs objects = recycle, zfsacl, streams_xattr
>   nfs4:mode   = special
>   nfs4:acedup = merge
>   nfs4:chown  = yes
>   zfsacl:acesort = dontcare
>   recycle:repository     = /mnt/vMachines/.Trashes
>   recycle:directory_mode = 0777
>   recycle:keeptree       = Yes
>   recycle:versions       = Yes
>   recycle:touch          = Yes
>   recycle:touch_mtime    = No
>   recycle:exclude        = ?~$*,~$*,._*,.smbdelete*
>
> [...]
> EOF
> chmod 0644       /usr/local/etc/smb4.conf
> chown root:wheel /usr/local/etc/smb4.conf
>
>
> Kind regards,
> Leander
Hi, have you tried using 'sec=krb5' instead ? I am not really an expert 
here, Steve knows far more about this than me, so perhaps he will chime 
in with some advise.

Rowland

FYI - this problem disappeared after I re-compiled samba from ports. I 
can not tell what the detailed cause was but I'm happy to be rid of the 
issue ;)


Am 11.05.14 11:00, schrieb Leander Sch?fer:
> Hi Rowland,
>
> do you maybe have any idea what could potentially cause this bug? 
> smbclient thrwos me back a
>
> mount error(5): Input/output error
>
> when I try to mount the remote smbFS. It doesn't happen with my MacOSx 
> and Windows 7 as client but it happens with Linux OSs and with a 
> Konica Minolta copy machine with a scanner to samba function. The 
> first try to mount fails with the above error. The second try will be 
> a success right away without any errors. I don't understand what 
> causes this behaviour?! I thought you may have an idea?
> Thank you
>
>
>
> Samba Server is Version 4.1.7 and it's running on a FreeBSD 10.0 
> RELEASE (fresh installation)
> Samba client (eg. on Linux) is Version 3.5.4-0.83.el5_7.2
> mount cmd on (eg. Linux is):
>
> mount -t cifs //10.0.0.200/MYSHARE -o 
> username="${SMB_USR}",password="${SMB_PWD}",sec=ntlmv2
/mnt/MyShare
>
> Below is my config, if useful:
>
> cat << EOF > /usr/local/etc/smb4.conf
> # ================================== #
> #        Samba4 - FileServer         #
> # ================================== #
>
>
> # ============= Global ============= #
>
> [global]
>
>   # Basic server settings
>   workgroup          = $( echo ${DOMAINNAME^^} | awk -F'.'
'{print $1}' )
>   realm              = ${DOMAINNAME^^}
>   netbios name       = ${SERVERNAME^^}
>
>   # Password backend
>   passdb backend     = tdbsam
>
>   # Logging
>   log level    = 4
>  #log level    = auth:3
>   max log size = 0
>
>   # NTLMv2
>   ntlm auth          = No
>   lanman auth        = No
>   client ntlmv2 auth = Yes
>
>   # Printing
>   load printers = No
>   printing      = BSD
>   printcap name = /dev/null
>
>   # Default masks
>   unix extensions      = No
>   create mask          = 0777
>   force create mode    = 0777
>   directory mask       = 0777
>   force directory mode = 0777
>
>   # Miscellaneous
>   veto oplock files  = /*.doc/*.xls/*.ppt/*.mdb/*.docx/*.xlsx/*.ppt
>   veto files         = 
>
/.snap/.windows/.zfs/Thumbs.db/.DS_Store/._.DS_Store/.apdisk/.TemporaryItems/
>   wide links         = No
>
>
> # ============= Shares ============= #
>
> [...]
>
> [MyShare]
>   comment     = MyShare - Storage
>   path        = /mnt/MyShare
>   guest ok    = No
>   read only   = No
>   valid users =  myuser, leander, patrick
>   force user  =  myuser
>   vfs objects = recycle, zfsacl, streams_xattr
>   nfs4:mode   = special
>   nfs4:acedup = merge
>   nfs4:chown  = yes
>   zfsacl:acesort = dontcare
>   recycle:repository     = /mnt/vMachines/.Trashes
>   recycle:directory_mode = 0777
>   recycle:keeptree       = Yes
>   recycle:versions       = Yes
>   recycle:touch          = Yes
>   recycle:touch_mtime    = No
>   recycle:exclude        = ?~$*,~$*,._*,.smbdelete*
>
> [...]
> EOF
> chmod 0644       /usr/local/etc/smb4.conf
> chown root:wheel /usr/local/etc/smb4.conf
>
>
> Kind regards,
> Leander