samba - May 2010 - No space available: NT_STATUS_OBJECT_NAME_COLLISION (?)

Hi,

we have trouble with one of our samba servers. Sometimes(!) users get an error
message while copying files to the
server, that no space would be available. But there are a few TB free.

In the samba logs I can find theese entries:

[2010/05/28 15:56:24,  2] smbd/open.c:2447(open_directory)
   open_directory: unable to create .. Error was NT_STATUS_OBJECT_NAME_COLLISION
[2010/05/28 15:56:24,  2] smbd/open.c:580(open_file)


What does this mean? I can't find any useful hint in samba documentation.


btw:
used versions (Sernet packages):

samba3-doc-3.4.3-40.suse101
samba3-client-3.4.3-40.suse101
samba3-cifsmount-3.4.3-40.suse101
samba3-utils-3.4.3-40.suse101
samba3-3.4.3-40.suse101
samba3-winbind-3.4.3-40.suse101



Thanks.
Alex