Sorry I sent one answer accidentally unfinished.

<<< 20. 2. 2013 8:28 - Alexey Kovyazin "ak@..." >>>

> Hi Roland,

Hi Alexey,

> Terminated abnormally is indication of the server crash, not
> database corruption (though it can be some relation).
> First of all, you need to look at UDFs you are using.
> Did you migrate recently from 32 bit version, and one UDFs is 32
> bit? Did you add new UDFs recently?

I have been using FB 2.5.1 x64 since beginning on this server. UDFs
are working fine and I didn't have any problem with UDFs for years.
UDFs are written Pascan and compiled in FreePascal 2.6.

> Then, if UDF are Ok (or, better, no UDFs at all) try to reproduce
> crash with metadata only backup.

OK, I will do this, but I cannot, because the database is in use 5/8. I will try it in the evening.

>If it constantly repeats, this can be sign of some internal bug in
>Firebird. In this case you need to add bug into
>tracker.firebirdsql.org with test case (zip and attach there metadata
>backup).

I have also tried to update to FB 2.5.2 x64, but the issue remained
the same.

>> I also tried to use IBFirstAid 2.5 diagnose I can see the only strange
>> thing about "Found 6757 undefined pages".
>>
>> It's not stange - in 2.1+ Firebird allocates additional undefined
>> pages in the end of the database file for performance and safety reason.
>>
>> 21:55:18 INFO: Analyzing database low-level structures...
>> 21:55:18 INFO: Process database file #1 of 1 files.
>> 22:08:48 INFO: Actual PageCount: 1838521 found in database
>> 22:08:48 INFO: Found 6757 undefined pages.
>> 22:08:48 INFO: ====== DATABASE IS READY FOR DIAGNOSING AND REPAIRING. ====
>> 22:08:48 INFO: ====== Now choose "Diagnose" or "Repair". ====

> Did you run Diagnose after that?
> Though, since you was able to make backup, and problem at restore
> level, I doubt that FBFirstAID will show anything.

Yes, I have full protocol, would you like to see it? Maybe I sent it to you directly?
BTW: I was using the free version of FBFirstAID only.

Thanks.

--
Best regards, TRoland
http://www.rotursoft.sk
http://exekutor.rotursoft.sk