(see other post:
"SQL Server Error: deadlock" on SELECT statement. Why?
http://groups.google.com/group/borland.public.interbase.general/browse_frm/thread/50132526ede07822
)
When searching in perfmon logs, it occurred at the time of zipping the
database backup.
I use 7zip for it, because it can handle large files (database = 30gb,
backup 17gb, zip = 990mb).
7Zip took almost 100% CPU, leaving few % for IBServer.
Seems to look that stressing a server (so IBServer gets not enough CPU
time) and processing lots
of transactions on the database, that Interbase gets an internal error?