[cifs-protocol] Filelock using SAMBA and XP / process not terminated

Fri Mar 18 08:17:58 MDT 2011

Hi everybody,

I posted this already to the samba list, but no one answered........

Since a few weeks we have a very strange behavior.
It happens from time to time that the Samba Server is not closing the process after an XP Client (XP64 SP2) has connected to a file.
If I want to rename a file or see the permission of it, my XP Client stops responding. After some minutes or sometimes hours, the File will be accessible again.

I can use smbstatus to see which client keeps the file open (smbstatus -L | grep filename). If I kill the process, then I can rename the file again. Rebooting the Client won't help.
This Error appears after the following changes:

1.       Move the XP Clients to an ActiveDirectory Domain (w2k8)

2.       Use new Network Switches
And it appears on different Samba Servers (some authenticate to AD some to an old LDAP).
Hopefully someone has an Idea what could be wrong or what to do to avoid this situation.

Here are some informations:

storage2:~# smbstatus -L | grep 0058.exr
12274        10046      DENY_NONE  0x20196     WRONLY     EXCLUSIVE+BATCH  /serv1/samba/STR-1011-00367-VW   SCENE_010/SHOT_0010_000/RENDER/3D/FINAL_LAYERS/MACKELAYER/CONV/VW_324_Beetle_Wheels_ALLOY_WHEEL_7JX17_ET43_Mirror_conv.0058.exr   Fri Mar 18 12:58:32 2011
12274        10046      DENY_NONE  0x20089     RDONLY     EXCLUSIVE+BATCH  /serv1/samba/STR-1011-00367-VW   SCENE_010/SHOT_0010_000/RENDER/3D/FINAL_LAYERS/MACKELAYER/VW_324_Beetle_Wheels_ALLOY_WHEEL_7JX17_ET43_Mirror.0058.exr   Fri Mar 18 12:58:30 2011

storage2:~# smbstatus -p | grep 12274
12274   node64        Domain Users  render97     (192.168.103.97)

storage2:~# lsof | grep 12274
...
smbd      12274      node64    5u     IPv4    1084872                 TCP storage2.lan.mackevision.de:microsoft-ds->render97.lan.mackevision.de:2029 (ESTABLISHED)
smbd      12274      node64    6w      REG        8,1        5    1524987 /var/run/samba/smbd.pid
smbd      12274      node64    7u      REG        8,1  1761280    1524985 /var/run/samba/messages.tdb
smbd      12274      node64    8u      REG        8,1   303104    1524988 /var/run/samba/sessionid.tdb
smbd      12274      node64    9u      REG        8,1   245760    1524989 /var/run/samba/connections.tdb
smbd      12274      node64   10u      REG        8,1    49152    1524990 /var/run/samba/brlock.tdb
smbd      12274      node64   11u      REG        8,1  2719744    1524991 /var/run/samba/locking.tdb
smbd      12274      node64   12u      REG        8,1     8192    1524986 /var/run/samba/gencache.tdb
smbd      12274      node64   13u      REG        8,1     8192    1524946 /var/lib/samba/ntdrivers.tdb
smbd      12274      node64   14u      REG        8,1     8192    1524940 /var/lib/samba/group_mapping.tdb
smbd      12274      node64   15u      REG        8,1     8192    1524942 /var/lib/samba/account_policy.tdb
smbd      12274      node64   16u      REG        8,1     8192    1524947 /var/lib/samba/ntprinters.tdb
smbd      12274      node64   17u      REG        8,1      696    1524948 /var/lib/samba/ntforms.tdb
smbd      12274      node64   18rW     REG       8,33  3880577   10150877 /serv1/samba/STR-1011-00367-VW/SCENE_010/SHOT_0010_000/RENDER/3D/FINAL_LAYERS/MACKELAYER/VW_324_Beetle_Wheels_ALLOY_WHEEL_7JX17_ET43_Mirror.0058.exr
smbd      12274      node64   19r     FIFO        0,6             1084873 pipe
smbd      12274      node64   20w     FIFO        0,6             1084873 pipe
smbd      12274      node64   21r     FIFO        0,6                6750 pipe
smbd      12274      node64   22w     FIFO        0,6                6750 pipe
smbd      12274      node64   23u      REG        8,1     8192    1525008 /var/run/samba/share_info.tdb
smbd      12274      node64   24u      REG        8,1   196608    3670129 /var/cache/samba/netsamlogon_cache.tdb
smbd      12274      node64   25r      REG       8,33     8128   10143973 /serv1/samba/STR-1011-00367-VW/_GEN_GLOBAL/3D_3DSMAX/SCENES/HUGO_RENDERJOBS/STR-1011-00367-VW_VW_324_Beetle_Wheels_ALLOY_WHEEL_7JX17_ET43_Mirror__1716.ms
smbd      12274      node64   26uW     REG       8,33   479232   10150906 /serv1/samba/STR-1011-00367-VW/SCENE_010/SHOT_0010_000/RENDER/3D/FINAL_LAYERS/MACKELAYER/CONV/VW_324_Beetle_Wheels_ALLOY_WHEEL_7JX17_ET43_Mirror_conv.0058.exr
smbd      12274      node64   27w      REG        8,1  5477934    3670091 /var/log/samba/log.node64 (deleted)
....

I am using Debain Systems (one Ubuntu Server).
Samba Version 3.0.24 and 3.4.7 (on the Ubuntu)

This is my smb.conf:
netbios name = storage2
workgroup = mackevision
wins server = 192.168.105.50
server string = Storage Server 2 (%v)
hosts allow = 192.168.
security = domain
encrypt passwords = yes
password server = PDC
socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
interfaces = 192.168.102.2/24 192.168.101.2/24 192.168.103.2/24
bind interfaces only = yes
log level = 0
log file = /var/log/samba/log.%U
max log size = 10000
null passwords = no
hide unreadable = yes
hide dot files = yes
dos charset = 850
dos filemode = yes
unix charset = ISO8859-1
domain master = no
local master = no
preferred master = yes
os level = 2
load printers = no
printing = bsd
printcap name = /dev/null
disable spoolss = yes
smb ports = 445

Regards,
Stefan

Stefan Lubitz
Head of IT Stuttgart - Munich - Detroit
_________________________________________________________
MACKEVISION
Medien Design GmbH, Stuttgart
Forststraße 7
D - 70174 Stuttgart

Tel.: +49 (0) 711 / 933 048-98
Fax.: +49 (0) 711 / 933 048-90

stefan.lubitz at mackevision.de<mailto:stefan.lubitz at mackevision.de>
www.mackevision.de<http://www.mackevision.de/>

Geschäftsführer: Armin Pohl, Joachim Lincke
HRB 243735 Amtsgericht Stuttgart

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