[Samba] Strange msdfs connection problem

[Stefan Gohmann]

Hello,

we have a Samba 3.2.8 msdfs root server. From time to time the connection from 
a Windows 2003 SP2 system will fail with the message that the server name 
could not be found. On Windows XP it seems to work.

On Windows we open the folder user1/folder/subfolder with the explorer. In the 
failure log I can't see anything about the subfolder.

If I compare the samba log (debug level 10) the first diffrence is:

Success (!):
[2009/05/28 09:01:33,  3] locking/locking.c:fetch_share_mode_unlocked(857)  
  fill_share_mode_lock failed
[2009/05/28 09:01:33,  3] smbd/trans2.c:call_trans2qfilepathinfo(4052)
  call_trans2qfilepathinfo user1/folder (fnum = -1) level=1004 call=5 
total_data=0

Failure (!):
[2009/05/27 16:55:22, 10] locking/locking.c:parse_share_modes(519)
  parse_share_modes: delete_on_close: 0, owrt: Di 19 Mai 2009 10:15:44 CEST 
CEST, cwrt: Do 01 Jan 1970 01:00:00 CET CET, tok: 0, num_share_modes: 1
[2009/05/27 16:55:22, 10] locking/locking.c:parse_share_modes(616)
  parse_share_modes: share_mode_entry[0]:  pid = 14132, share_access = 0x7, 
private_options = 0x1, access_mask = 0x100001, mid = 0x0, type= 0x0, gen_id = 
1, uid = 2246, flags = 2, file_id 801:bb212
[2009/05/27 16:55:22,  3] smbd/trans2.c:call_trans2qfilepathinfo(4052)
  call_trans2qfilepathinfo user1/folder (fnum = -1) level=1004 call=5 
total_data=0

user1/folder is a folder under the msdfs root. subfolder is a msdfs link.

Any hints?

Cheers
Stefan