DB2 (on Windows) V9.5 - received these errors around the same time that one of our ETL jobs failed. Can anyone shed any light on these errors for me?

Code:
2010-08-04-04.07.30.229000-240 I10086206H567      LEVEL: Error
PID     : 4880                 TID  : 4504        PROC : db2syscs.exe
INSTANCE: DB2                  NODE : 000         DB   : PRODDM
APPHDL  : 0-7307               APPID: 172.16.4.134.16647.100804080723
AUTHID  : OPETLPRC
EDUID   : 4504                 EDUNAME: db2agent (PRODDM) 0
FUNCTION: DB2 UDB, relation data serv, sqlrr_spec_mode, probe:150
MESSAGE : Invalid mode 1 is not supported for request 2.
DATA #1 : Hexdump, 4 bytes
0x048251B0 : 6D00 1A80
Code:
2010-08-04-04.07.30.229000-240 I10086775H463      LEVEL: Error
PID     : 4880                 TID  : 4504        PROC : db2syscs.exe
INSTANCE: DB2                  NODE : 000         DB   : PRODDM
APPHDL  : 0-7307               APPID: 172.16.4.134.16647.100804080723
AUTHID  : OPETLPRC
EDUID   : 4504                 EDUNAME: db2agent (PRODDM) 0
FUNCTION: DB2 UDB, relation data serv, sqlrr_prepfini, probe:250
RETCODE : ZRC=0x00000000=0=PSM_OK "Unknown"