Search "disable dual core" for a lot of stuff on the subject. Seems you're not the only one to run into problems. Frankly, dual-core is one advance that I'd stay a mile away from until I'm convinced it's been proven over time. I worked with it mainframe land, and recall fixing a bug that required clearing the processor's instruction cache. Not that we as app developers should every have to worry about such things, but the whole thing involves really tricky timing considerations that I would have thought impossible for Windows to deal with (message-driven vs interrupt-driven). Obviously they've got it to work - most of the time - but I really wonder if it can be made to work reliably ALL of the time.
Bill > I've a problem I THINK might be a dual-core issue. I've read > the "buffer > overrun" threads. > > Environment: A new dual-core 2 gig machine at a client site. > Runs Win2K > SP4, and VFP9 SP1. > > I converted an application from VFP tables to mySQL, and have > a VFP utility > that loads the mySQL tables from the VFP tables to get things > started. Uses > SQL passthough. Uses the mySQL ODBC 3.51 driver. > > I have no problems at all on my development machine; there > are no problems > if I run the upload on another machine on the network at the > client site. > > However, on the dual-core machine, the SQL INSERTs that I use > to load the > tables fail sometimes with SQL SYNTAX errors. mySQL complains > about there > being an error in the SQL statement, and the error message it > sends back > shows a corrupted INSERT statement. It does not happen on the > same record > each time - it is random. And if I simply re-issue the > INSERT, it works. I > modified the program to do retries, and I can upload the > tables this way. > On a 15000 record table, I might get 30 errors that work when retried. > > I did some other tests - I created a remote view, and then > updated the > table this way - no problems - perhaps VFP is doing retries. > > I am limiting memory via SYS(3050) to around 24 meg, just as a test. > > On ONE occasion I got the dreaded "Buffer overrun" message from the C > library. I also got this message once on my home machine. > However, both > machines are running SP1, which supposedly fixes this error. > > Any thoughts? Is it possible to disable part of a dual-core > machine via the > BIOS? (This is an ACER machine, which I think uses an AMD > chip set). That > would be the proof. > > Thoughts, anyone? I have no idea on how to solve this one. > > Many thanks > > Larry Bradley > Orleans (Ottawa), Ontario, CANADA > > > [excessive quoting removed by server] _______________________________________________ Post Messages to: [email protected] Subscription Maintenance: http://leafe.com/mailman/listinfo/profox OT-free version of this list: http://leafe.com/mailman/listinfo/profoxtech ** All postings, unless explicitly stated otherwise, are the opinions of the author, and do not constitute legal or medical advice. This statement is added to the messages for those lawyers who are too stupid to see the obvious.
