samba - Jan 2004 - tdb access problem - tdb_brlock failed

Hi I my smbd.log, I  can find these lines.
How to resolv this problem ?

[2004/01/08 12:03:11, 5] lib/gencache.c:gencache_init(59)
  Opening cache file at /var/cache/samba/gencache.tdb
[2004/01/08 12:03:11, 5] tdb/tdbutil.c:tdb_log(724)
  tdb(unnamed): tdb_brlock failed (fd=12) at offset 4 rw_type=1
lck_type=13: Ressource temporairement non disponible
[2004/01/08 12:03:11, 5] libsmb/namecache.c:namecache_enable(58)
  namecache_enable: enabling netbios namecache, timeout 660 seconds
[2004/01/08 12:03:11, 5] tdb/tdbutil.c:tdb_log(724)
  tdb(unnamed): tdb_brlock failed (fd=13) at offset 4 rw_type=1
lck_type=13: Ressource temporairement non disponible
[2004/01/08 12:03:11, 5] tdb/tdbutil.c:tdb_log(724)
  tdb(unnamed): tdb_brlock failed (fd=17) at offset 4 rw_type=1
lck_type=13: Ressource temporairement non disponible
[2004/01/08 12:03:11, 5] tdb/tdbutil.c:tdb_log(724)
  tdb(unnamed): tdb_brlock failed (fd=18) at offset 4 rw_type=1
lck_type=13: Ressource temporairement non disponible
[2004/01/08 12:03:11, 5] tdb/tdbutil.c:tdb_log(724)
  tdb(unnamed): tdb_brlock failed (fd=19) at offset 4 rw_type=1
lck_type=13: Ressource temporairement non disponible
[2004/01/08 12:03:11, 10] registry/reg_cachehook.c:reghook_cache_add(60)
  reghook_cache_add: Adding key
[/HKLM/SYSTEM/CurrentControlSet/Control/Print]
[2004/01/08 12:03:11, 8] lib/adt_tree.c:sorted_tree_add(247)
  sorted_tree_add: Enter
[2004/01/08 12:03:11, 10] lib/adt_tree.c:sorted_tree_add(314)
  sorted_tree_add: Successfully added node
[HKLM/SYSTEM/CurrentControlSet/Control/Print] to tree
[2004/01/08 12:03:11, 8] lib/adt_tree.c:sorted_tree_add(316)
  sorted_tree_add: Exit

tdb file in /var/cache/samba :

account_policy.tdb
brlock.tdb
browse.dat
connections.tdb
gencache.tdb
group_mapping.tdb
lang_en.tdb
lang_fr.tdb
locking.tdb
messages.tdb
namelist.debug
ntdrivers.tdb
ntforms.tdb
ntprinters.tdb
printing (this is a directory)
registry.tdb
sessionid.tdb
share_info.tdb
unexpected.tdb
wins.dat


Thank you

     St?phane

-----------------------------------
St?phane PURNELLE                         stephane.purnelle@corman.be
Service Informatique       Corman S.A.           Tel : 00 32 087/342467