[Samba] fcntl lock failed at large offset: pretty urgent

[Jim Thomas]

Debian Woody with security updates
Linux kernel 2.2.25
Samba 3.0.0
libc6 2.2.5

The problem I have is with a windows application that uses samba.  This
application is crucial for the organization, so if this is not fixed,
and soon, we will have to ditch Samba and move to a windows server.
I *really* don't want to do this, as Samba has been working so well for
years now and billg is rich enough already.

I am having problems with a windows client program that does a range
lock on a file on a share.  The log.smbd reports with debug level 3:

[2003/12/02 17:20:23, 3] lib/util.c:fcntl_lock(1632)
  fcntl_lock: fcntl lock gave errno 75 (Value too large for defined data type)
[2003/12/02 17:20:23, 3] lib/util.c:fcntl_lock(1651)
  fcntl_lock: lock failed at offset 4294967284 count 1 op 13 type 1 (Value too large for defined data type)
[2003/12/02 17:20:23, 3] smbd/error.c:error_packet(94)
  error string = Value too large for defined data type

What I think is happening is the client is passing a number
greater than 2^31 as the lock range, which will fail according to
http://samba.org/samba/docs/man/locking.html#id2918968 which states
that samba locks from 0-2^31, whereas windows issues lock requests up
to 2^32 or 2^64.

Setting "locking = no" fixes the problem, but will cause others as these
files are used by many people at once.

Do I have any options, or is this it for Samba on my site?  

I would really appreciate some help here.

Thanks in anticipation,

Jim


Extended logfile output
----------------------------------------------------------------------
[2003/12/02 17:20:23, 3] smbd/sec_ctx.c:set_sec_ctx(288)
  setting sec ctx (1000, 1005) - sec_ctx_stack_ndx = 0
[2003/12/02 17:20:23, 3] lib/util.c:unix_clean_name(580)
  unix_clean_name [/caseflow/data/access.TXT]
[2003/12/02 17:20:23, 3] smbd/dosmode.c:unix_mode(110)
  unix_mode(caseflow/data/access.txt) returning 0760
[2003/12/02 17:20:23, 3] lib/util.c:unix_clean_name(580)
  unix_clean_name [caseflow/data/access.txt]
[2003/12/02 17:20:23, 2] smbd/open.c:open_file(250)
  jim opened file caseflow/data/access.txt read=Yes write=Yes (numopen=1)
[2003/12/02 17:20:23, 3] smbd/process.c:process_smb(890)
  Transaction 4718 of length 76
[2003/12/02 17:20:23, 3] smbd/process.c:switch_message(685)
  switch message SMBtrans2 (pid 21538)
[2003/12/02 17:20:23, 3] smbd/trans2.c:call_trans2qfilepathinfo(1841)
  call_trans2qfilepathinfo: TRANSACT2_QFILEINFO: level = 1006
[2003/12/02 17:20:23, 3] smbd/trans2.c:call_trans2qfilepathinfo(1929)
  call_trans2qfilepathinfo caseflow/data/access.txt (fnum = 7144) level=1006 call=7 total_data=0
[2003/12/02 17:20:23, 3] smbd/process.c:process_smb(890)
  Transaction 4719 of length 75
[2003/12/02 17:20:23, 3] smbd/process.c:switch_message(685)
  switch message SMBlockingX (pid 21538)
[2003/12/02 17:20:23, 3] lib/util.c:fcntl_lock(1632)
  fcntl_lock: fcntl lock gave errno 75 (Value too large for defined data type)
[2003/12/02 17:20:23, 3] lib/util.c:fcntl_lock(1651)
  fcntl_lock: lock failed at offset 4294967284 count 1 op 13 type 1 (Value too large for defined data type)
[2003/12/02 17:20:23, 3] smbd/error.c:error_packet(94)
  error string = Value too large for defined data type
[2003/12/02 17:20:23, 3] smbd/error.c:error_packet(113)
  error packet at smbd/reply.c(4208) cmd=36 (SMBlockingX) NT_STATUS_ACCESS_DENIED
[2003/12/02 17:20:23, 3] smbd/process.c:process_smb(890)
  Transaction 4720 of length 75
[2003/12/02 17:20:23, 3] smbd/process.c:switch_message(685)
  switch message SMBlockingX (pid 21538)
[2003/12/02 17:20:23, 3] lib/util.c:fcntl_lock(1632)
  fcntl_lock: fcntl lock gave errno 75 (Value too large for defined data type)
[2003/12/02 17:20:23, 3] lib/util.c:fcntl_lock(1651)
  fcntl_lock: lock failed at offset 4294967280 count 1 op 13 type 1 (Value too large for defined data type)
[2003/12/02 17:20:23, 3] smbd/error.c:error_packet(94)
  error string = Value too large for defined data type
[2003/12/02 17:20:23, 3] smbd/error.c:error_packet(113)
  error packet at smbd/reply.c(4208) cmd=36 (SMBlockingX) NT_STATUS_ACCESS_DENIED
[2003/12/02 17:20:23, 3] smbd/process.c:process_smb(890)
  Transaction 4721 of length 45
[2003/12/02 17:20:23, 3] smbd/process.c:switch_message(685)
  switch message SMBclose (pid 21538)
--------------------------------------------------------------------------