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