samba - Apr 2007 - home shares and thunderbird profiles

We find it convenient to keep thunderbird email client profiles on our home
shares
rather than in our user profiles, as is the default.  From time to time some
users
experience the dreaded "delayed write failed" error for certain
thunderbird files.
The only solution seems to be to log off and log on again. (after clicking OK to
accept the error about seven times).

We are sharing lots of autocad and engineering files on other shares and we
never see
a delayed write failed error on those, so it seems to me that it is not a
general
networking problem, but rather a thunderbird or home share problem.  Are there
any
tuning tips for the home share that might help?

[mark@gecko ~]$ uname -a
Linux gecko.tippingmar.com 2.6.17-1.2142_FC4 #1 Tue Jul 11 22:41:06 EDT 2006
x86_64 x86_64 x86_64 GNU/Linux

[mark@gecko ~]$ rpm -q samba
samba-3.0.24-1


in smb.conf:
[global]
         workgroup = STA
         server string = FileServer
         log level = 1
         log file = /var/log/samba/log.%m
         max log size = 500
         name resolve order = wins lmhosts host bcast
         time server = Yes
         socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
         load printers = No
         add machine script = /usr/sbin/useradd -d /dev/null -g 99 -c machine -M
%u
         logon script = logscript.bat
         logon path = \\gecko\profiles\%u
         domain logons = Yes
         os level = 65
         preferred master = Yes
         domain master = Yes
         dns proxy = No
         wins support = Yes
         ldap ssl = no
         create mask = 0770
         directory mask = 0770
         hosts allow = 192.168.254.
         map archive = No
         reset on zero vc = Yes

[homes]
         comment = User Home Directories
         path = /share/homes/%u
         valid users = %S
         read only = No
         browseable = No

Thanks,
Mark

On Mon, Apr 02, 2007 at 11:08:14AM -0700, Mark Nienberg
wrote:
> We find it convenient to keep thunderbird email client profiles on our home
> shares rather than in our user profiles, as is the default.  From time to 
> time some users experience the dreaded "delayed write failed"
error for
> certain thunderbird files. The only solution seems to be to log off and log
> on again. (after clicking OK to accept the error about seven times).
This almost always means a network problem (it's a client oplock
break response failure).

Jeremy.