Hi. Please excuse me if this is wrong place to ask. There is two servers involved in this case, Windows 2003 and Debian Linux. Windows 2003 is the Terminal Server, it runs multiple Remote Desktop Protocol sessions in the same time. At the first occurrence of the problem, it was Windows 2003 Server Standart SP1, in process of troubleshooting it was upgraded to SP2. The same error occurs on fresh installation of the same OS on another box. Samba is running on Debian Linux server, all was fine while this server was running Debian Sarge (Samba version 3.0.14a-3sarge10). After upgrading Linux server to Debian Etch (Samba version 3.0.24-6etch8) windows server periodically get 'STOP' error with code 0x0000008e 0xC0000005 0x804e446a. Here is screenshots from two such errors: http://img296.imageshack.us/img296/8988/bsod01sbu3.jpg http://img296.imageshack.us/img296/2970/bsod02soh2.jpg Restoring Debian Sarge from backup removes the problem completely. Installing Samba from backports-sarge (version 3.0.23c-1~bpo.1) brings the same problem again. So, I think, the cause is some change in the Samba code between 3.0.14 and 3.0.23. The same behaviour (STOP errors after Samba upgrade) I got in another network with nearly the same configuration. This is production environment, I can't freely play with it. I was trying to reproduce the same behaviour in test network but without success. Maybe it's because the number of windows terminal server clients (and Samba requests) was too small. Actually it was some months ago, there was no more time to deal with this problem and I just leave the system in previous state. But now I need to upgrade it, so please, help me, I just don't know what to do with it. This is smb.conf: ==================[global] bind interfaces only = yes interfaces = lan, lo dos charset = CP866 unix charset = koi8-r display charset = UTF8 workgroup = MAIN netbios name = files server string = files security = user encrypt passwords = true preferred master = yes local master = yes os level = 100 wins support = yes lanman auth = no max log size = 1000 log level = 1 ;; share defaults oplocks = no wide links = no follow symlinks = yes hide unreadable = yes delete readonly = yes map system = no map hidden = no map archive = no veto files = /lost+found/ directory mask = 0770 create mask = 0660 browsable = no writeable = no guest ok = no map to guest = Bad User force user = smbguest force group = smbguest guest ok = no hosts allow = 192.168.0.0/255.255.255.0 [soft] path = /files/soft wide links = yes writeable = no guest ok = yes oplocks = yes [docs] path = /files/docs wide links = yes writeable = yes guest ok = yes oplocks = yes [mail] path = /files/mail wide links = yes writeable = yes guest ok = yes oplocks = yes ====================================(there are some more shares, but problem persists after commenting them out)