Hello Richard I'm using a heavily-modified version of threadtest1.c from the SQLite test suite to run on my embedded platform. I think Noah may be on to something (thanks Noah!) - I looked at the stacktrace and found that the specific sqlite3OsRead() call he mentioned was triggering my bad VFS read.
Are previous versions of the amalgamation source available? I'd be happy to try 3.6.8 and 3.6.9 to see at which version this issue appeared. Cheers, Dave. -----Original Message----- From: D. Richard Hipp [mailto:[email protected]] Sent: 16 January 2009 15:30 To: General Discussion of SQLite Database Subject: Re: [sqlite] reading beyond end of file On Jan 16, 2009, at 5:38 PM, Dave Toll wrote: > Hello list > > > > I recently upgraded from SQLite 3.6.7 to 3.6.10 and I'm now noticing > some apparently undesirable behaviour. I'm running on an embedded > system > with my own VFS implementation, and I see in my tests that SQLite is > now > trying to read journal files at an offset beyond the end of the > file. Is > anyone aware of any recent changes that could cause this scenario? > Should this case be handled within the VFS implementation? > For testing this, I added an assert() to the unix VFS which will fire if it ever tries to read past the end of a journal file. Then I ran our test suite. The assert() never fired. So in our test suite, at least, SQLite never reads past the end of a a journal file. I'm curious to know what you are doing to provoke it to read past the end of a journal file..... D. Richard Hipp [email protected] _______________________________________________ sqlite-users mailing list [email protected] http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
