[Samba] XP SP2 offline files sync delay (again)

David Black
Wed, 12 Jan 2005 17:19:19 -0000

I'm running Samba 3.0.7 on Mandrakelinux 9.2 as a PDC, with a few shares
from the PDC and more on a separate Mandrakelinux 10.0 member file
server, also running Samba 3.0.7.  The passdb backend is LDAP and
clients are all Windows XP Professional SP1.  Except for the below,
everything works great!

We make heavy use of offline files, and with Windows XP SP1, all is
well.  However, when I install SP2, something breaks with the offline
files sync operation - there is a ~60 sec. delay and I'm not sure the
syncs even happen.  Domain logins, mapping drives, browsing, etc. all
seem OK with SP2.

I am planning to update to Samba 3.0.11 when it is released, and have
held at 3.0.7 not seeing any fixes since then apparently relevant.

FYI, below are two tcpdump -vv outputs, each syncing a single folder
from the share \\pdc\software.  The client is 'dblack-pc'.  The dumps
were taken in exactly the same way, differing only in which SP is
installed.  I can uninstall XP SP2 and things go back to normal.  The
Windows firewall is disabled in both cases.

http://jamsoft.com/~dave/samba/sync-sp1.txt
http://jamsoft.com/~dave/samba/sync-sp2.txt

Of note are many MAILSLOT operations on the sp2 dump, but none on the
sp1 dump.  In both cases I just started the dump on the server, then on
the client clicked synchronize on the offline folder.  Also, to explain
- 192.168.10.230 is a floating IP address of 'pdc' and 192.168.10.193 is
the machine's primary address 'aptos'.  I have communications occur
on
the .230 address so it may be migrated between physical machines using
heartbeat/DRBD, which so far works fine for all other functions.  Hope
that's not a factor in this problem.

Last, here's my smb.conf file:

http://jamsoft.com/~dave/samba/smb.conf

Any help/advice would be greatly appreciated.  I've scoured the net and
this list for clues, finding nothing substantive.  This issue is so far
is a show stopper for me to roll out XP SP2 at work.

Dave