Hit error SQL10003C when call DB2 C UDF

[hofc]

Hi,
I'm recently getting below error when calling my C UDF. Any body know how to solve this?
FYI, previously the C UDF is working fine but don't know why recently cannot work. I'm using DB2 UDB 7.2 in AIX(RS 6000).



SQL10003C There are not enough system resources to process the request. The
request cannot be processed. SQLSTATE=57011


#db2 get dbm cfg |grep UDF
UDF shared memory set size (4KB) (UDF_MEM_SZ) = 128


Thank you very much.

Regards,
fcho