re: CoreData SQL relaunch issue

FROM : Ben Trumbull
DATE : Sun Nov 04 00:54:35 2007

> When quitting and relaunching my app I get a never-ending string of
> the following errors:
>
> NSError "An error occurred while saving." Domain=NSCocoaErrorDomain
> Code=134030 UserInfo={
>    NSUnderlyingException = error during execution of SQL string
> 'ROLLBACK' : library routine called out of sequence;
> }
>
>
> I assume it's because the SQL database hasn't had adequate time to
> close before the relaunch.  The problem goes away if the user waits a
> bit before relaunching.


No.  SQLite is an embedded database, built around a file descriptor 
that the kernel will always clean up when the process terminates 
(under any circumstance, including seg fault)

What happens if you add to your ~/.gdbinit file

future-break objc_exception_throw

and catch this in gdb, and run the following commands
bt
info threads
thread apply all bt

?  Also, is this on Tiger or Leopard ?  Do you have multiple processes 
accessing the file ?

- Ben