Record locking problem between linux and Windows

Posted by PabloG on Stack Overflow See other posts from Stack Overflow or by PabloG
Published on 2009-09-18T21:22:45Z Indexed on 2010/06/01 22:03 UTC
Read the original article Hit count: 260

Filed under:

linux

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foxpro

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samba

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cifs

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clipper

I need to run a bunch of old DOS FoxPro / Clipper applications in linux under DOSEMU. The programs access their "databases" located on a network server (could be a Windows or Linux server)

Actually, the programs ran fine, but I cannot manage to make the record locking work as supposed: I can run a program in two terminals (or the server and any terminal for instance) and lock the same record in both.

Now, I'm using Tiny Core Linux as terminal and Windows XP as server, accesing the shared files via CIFS and the latest DOSEMU (1.4.0), but I tried with various combinations of server (Ubuntu 7 to 9, Damn Small Linux, XP) <-> protocol (CIFS, samba, various versions of smbclient) <-> client (same as server) with no luck

I tried to configure the server part to work without oplocks in samba (after reading the entire O'Reilly Samba book locking chapter in http://oreilly.com/catalog/samba/chapter/book/ch05_05.html ) and in XP (\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanServer\Parameters\UseOpportunisticLocking = 0) but the problem persist.

Any ideas?

TIA, Pablo

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