Solution : https://service.sap.com/sap/support/notes/139326 (SAP Service marketplace login required)
Key words : 
ztta/roll_firstztta/roll_area ztta/roll_extensionem/initial_size_mb rdisp/pg_maxfsrdisp/pg_shm abap/heaplimitabap/head_area_diaabap/heap_area_nondiaabap/heap_area_total 3, -dialog work processabap/heap_area_total  heap quota, shared memory pools shared memory pools, changed sap profile parameter                explanationztta/roll_first      = 1, dialog work processabap/heap_area_nondia heap quota, support large linear address spaces, provide large linear address spaces, internal sessionztta/roll_extension   extended memory quota, complete sap application serverthe memory requirement, application serverabap/heap_area_dia    heap quota
Related Notes : 
       
| 878723 | iSeries: ST02 does not show roll area | 
| 790099 | R/3 Parameter Settings for Unicode conversion | 
| 556082 | iSeries: Status: 80 %/90 % of AS400MEM is in use | 
| 376827 | AS/400: Instance profile parameter ztta/as4/roll_shm_cpp_16M | 
| 371029 | AS/400: Work processes go into PRIV mode | 
| 306909 | AS/400: Extended Memory full | 
| 103747 | Performance: Parameter recommendations as of Release 4.0 |