Solution : https://service.sap.com/sap/support/notes/758642 (SAP Service marketplace login required)
Key words : 
oracle 64-bit   /oracle/oracle 64-bit/oracle 9, oracle 32-bit   /oracle/oracle 64-bit/oracle 9, oracle automatic pga management, sap service marketplace underhttp, star_transformation_enabled = true   workarea_size_policy = auto, 64-bit/                                solaris_64/p3649979_9205_solaris64, 32-bit/                                        linux/p3649979_9205_linux, 64-bit/oracle 9, relevant bug fix, pga_aggregate_target = 0workarea_size_policy = manual
Related Notes : 
       
| 619876 | Oracle9i: Automatic PGA Memory Management |