Catalog Service - User interrupt detected

Good Morning folks,

Our DB2 servers currently complains about the below error, "User
interrupt detected". I've been researching for quite long and I
haven't got any good explanation nor solution on this.

Could someone give me a hint please?

Thanks in advance

Simon


Here is the error message in DB2 instance diaglog file:

2008-06-16-20.02.18.513000-360 I744510F476        LEVEL: Error
PID     : 1672                 TID  : 2076        PROC : db2syscs.exe
INSTANCE: DB2                  NODE : 000         DB   : TOOLSDB
APPHDL  : 0-830                APPID: *LOCAL.DB2.080617020226
AUTHID  : SYSTEM
FUNCTION: DB2 UDB, catalog services, sqlrlScanOpen, probe:800
RETCODE : ZRC=0x80040003=-2147221501=SQLD_INTRP "USER INTERRUPT
DETECTED"
          DIA8003C The interrupt  has been received.