> I found "where" is the problem
>
> if i simplify fbtrace.conf to
> < database>
> enabled true
> log_filename "C:\\Program Files\\Firebird\\Firebird_2_5\\trace_log.log"
> connection_id 0
> log_statement_prepare true
> log_statement_free true
> log_statement_start true
> log_statement_finish true
> time_threshold 0
> < /database>
>
> then this work for me
> but default file with changed all position form false to true not work
> should i post this issue to the fbtracker?

No.

Feel free to send the faulty conf file to me privately.

Regards,
Thomas