Firebird RC2 hung several times the last few weeks. It wrote these
entries to the log file, and max out the CPU. System: Windows 2000,
1 GB RAM, plenty of free drive space. SUBS.GDB has been verified,
backed up, and restored, but didn't change the behavior - same
symptom before and after. Sweeping is disabled. Gstat didn't reveal
any problem. Any idea? Here are the log entries. The second entry
repeat a dozen times.

DB2 (Server) Thu Apr 18 08:19:29 2002
Database: D:\DATA\SUBS.GDB
operating system directive gds__sys_alloc failed
unable to allocate memory from operating system

DB2 (Server) Thu Apr 18 08:19:29 2002
Database: D:\DATA\SUBS.GDB
internal gds software consistency check (Non-zero use_count
of a buffer in the empty que (301))