Hi,

I have recently started using nbackup and have a system where, at the
end of an attempt to do a level 0 I got

Fatal lock manager error: invalid lock id (158048), errno: 22
--Invalid argument

attempts to do subsequent level 1 backups produced:


unsuccessful metadata update
-Database is already in the physical backup mode
Failure: Database error
[
PROBLEM ON "begin backup".
SQLCODE:-607
]

I've never seen anything like this in my earlier testing, can anyone
tell me what happened (firebird.log has nothing at these times)