Hi - looked at the log - there are entries like:

"Access Violation - The code attempted to access a virtual address
without privilege to do so. the exceptioi will cause the Firebird
server to terminate abnormally"

Which it did and re-started

I believe this is because the server has hyperthreading switched off
(make FB run faster?) but the db uses UDF's (the std firebird ones)
and there may be a threading issue if a call is being made to the
same UDF by more than one user at the same time.
(Only a theory - we have enabled hyperthreading tonight and will
advise result)

Regards

Roger


--- In firebird-support@yahoogroups.com, "Alan McDonald" <alan@...>
wrote:

>
> > Hi - FB1.5 on a W2003 server - running for 4+ years OK.

IBO/Delphi6 app.

> >
> > FB service has now stops and starts on it's own twice or more a

day for

> > no apparent reason. Tried moving everything to a new server

(similar

> > spec) but after 2 hours running it happens again. Baffled. The

program

> > (Delphi) is updated often but I cannot see how any program "bug"

could

> > cause this. It all seemed to start after we did a major data

clearout

> > followed by a (successful) backup and restore but again how could

that

> > cause this problem? DB size is 1.7GB
> >
> > Regards
> >
> > Roger
>
> what's in the log?
> Alan
>