Solution : https://service.sap.com/sap/support/notes/819386 (SAP Service marketplace login required)
Key words :
terms db2udb udb db6 db2icrt instance reason, data=491519 stack=32767this makes sense, db2 udb v8 fp9, single shared memory segment, db2icrtuser limits data, ibm apar iy67805, set back manually, instance creation, memory areas, user limits
Related Notes :
101809 | DB6: Supported Fix Packs IBM DB2 for Linux,UNIX and Windows |