Solution : https://service.sap.com/sap/support/notes/492913 (SAP Service marketplace login required)
Key words : 
ziphp-ux 64 bit oracle 64-bit general/3rdparty/oracle/hp_ux64/8, ziphp-ux oracle 32-bit general/3rdparty/oracle/hp_ux11, zipaix 64bit oracle 64-bit general/3rdparty/oracle/aix64/8, zipcompaq true 64 oracle 64-bit general/3rdparty/oracle/comapq_tru6/8, aix oracle 32-bit general/3rdparty/oracle/aix/8, ziplinux oracle 32-bit general/3rdparty/oracle/linux/8, zipsolaris oracle 32-bit general/3rdparty/oracle/solaris/8, zipsolaris oracle 64-bit general/3rdparty/oracle/solaris_64/8, memory leak space event 10262 reason, ][space leak]   ora-600[1115]   ora-600[17183]
Related Notes : 
       
| 613268 | |
| 362060 | Current patch set for Oracle 8.1.7 |