1.7: Basic file operations fail on network shares provided by Tru64 Advanced Server

[Heinz Werner Kramski <Heinz dot Werner dot Kramski at dla-marbach dot de>]

While Cygwin 1.5 played well with our legacy file server (Tru64 Advanced 
Server V5.1B-4 ECO2), 1.7 does not.

Although I seem to have sufficient write permissions (and actually can 
write to files), renaming (mv-ing) files fails with 1.7.1, 1.7.5-1 and 
1.7.6-1 (others not tested) like this:
      $ pwd
      //dlanserv/KRAMSKI$/testperms
      $ touch somefile
      $ ls > otherfile
      $ ls -la
      total 4113
      drwxr-xr-x+  2 kramski Domain Users 8192 2010-08-23 15:53 ./
      drwx------+ 84 kramski Domain Users 8192 2010-08-23 15:35 ../
      -rw-r--r--   1 kramski Domain Users   19 2010-08-23 15:53 otherfile
      -rw-r--r--   1 kramski Domain Users    0 2010-08-23 15:53 somefile
      $ getfacl somefile
      # file: somefile
      # owner: kramski
      # group: Domain Users
      user::rw-
      group::r--
      mask:rwx
      other:r--
      $ rm otherfile
      $ mv somefile newfile
      mv: cannot move `somefile' to `newfile': Permission denied

With 1.7.5, it was at least possible to copy files successfully. After 
upgrading to 1.7.6-1, cp now also fails strangely:
      $ cp somefile copyfile
      cp: skipping file `somefile', as it was replaced while being copied

Mounting with the "noacl" option doesn't help:
      $ mount -o noacl //dlanserv/kramski$ /mnt
      mount: warning - /mnt does not exist.
      mount: defaulting to 'notexec' mount option for speed since 
native path
             references a remote share.  Use '-f' option to override.
      $ mount
      //dlanserv/kramski$ on /mnt type cifs (text,notexec,noacl,user)
      $ cd /mnt/testperms
      $ ls -la
      total 3088
      drwxr-xr-x  2 kramski Domain Users 8192 2010-08-23 15:53 ./
      drwxr-xr-x 84 kramski Domain Users 8192 2010-08-23 15:35 ../
      -rw-r--r--  1 kramski Domain Users    0 2010-08-23 15:53 somefile
      $ mv somefile newfile2
      mv: cannot move `somefile' to `newfile2': Permission denied

Here is some info about the network share:
      $ /usr/lib/csih/getVolInfo //dlanserv/KRAMSKI$/
      Device Type        : 7
      Characteristics    : 10
      Volume Name        : <DLANSERV     >
      Serial Number      : 4294967292
      Max Filenamelength : 255
      Filesystemname     : <NTFS>
      Flags              : 8
        FILE_CASE_SENSITIVE_SEARCH  : FALSE
        FILE_CASE_PRESERVED_NAMES   : FALSE
        FILE_UNICODE_ON_DISK        : FALSE
        FILE_PERSISTENT_ACLS        : TRUE
        FILE_FILE_COMPRESSION       : FALSE
        FILE_VOLUME_QUOTAS          : FALSE
        FILE_SUPPORTS_SPARSE_FILES  : FALSE
        FILE_SUPPORTS_REPARSE_POINTS: FALSE
        FILE_SUPPORTS_REMOTE_STORAGE: FALSE
        FILE_VOLUME_IS_COMPRESSED   : FALSE
        FILE_SUPPORTS_OBJECT_IDS    : FALSE
        FILE_SUPPORTS_ENCRYPTION    : FALSE
        FILE_NAMED_STREAMS          : FALSE
        FILE_READ_ONLY_VOLUME       : FALSE
        FILE_SEQUENTIAL_WRITE_ONCE  : FALSE
        FILE_SUPPORTS_TRANSACTIONS  : FALSE

Using Windows explorer, every file operation is possible.

Tru64 Advanced Server is a proprietary Unix port of NT4 and should more 
or less behave like an NT server. Any ideas how to make it work with 
Cygwin 1.7?

TIA
     Heinz

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Description: Text document

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