Yes, I've seen the bugfixes document, but I think nothing of the listed
bugs looks like my problem.

And I've found this: http://markmail.org/message/q2d4bcdrwjyvlo7t

But I do not know where to find the crash dumps.

Helen Borrie wrote:

>
> At 08:48 PM 18/03/2009, you wrote:
> >Hello,
> >
> >After upgrading from 2.0 to 2.1.1 the server crashes regularly in 3-4
> >day period.
> >I have no idea where to obtain details, because the firebird log
> >contains only lines like this:
> >
> >ns (Client) Wed Mar 18 09:11:17 2009
> > /opt/firebird/bin/fbguard: /opt/firebird/bin/fbserver terminated
> >abnormally (-1)
> >ns (Client) Wed Mar 18 09:11:17 2009
> > /opt/firebird/bin/fbguard: guardian starting bin/fbserver
>
> A bad UDF? A UDF call that is confused with an internal function of
> the same name?
>
> Have you studied the Bugfixes document for Fb 2.1.2? Download from the
> field-testers link on Firebird's main page.
>
> ./hb
>
>