Solution : https://service.sap.com/sap/support/notes/891741 (SAP Service marketplace login required)
Key words : 
force -function tsextend -tablespace psap<sid>700 -size 1000 -autoextend, ora<sid> os user, terms netweaver upgrade, kernel directory run, erp upgrade hangs, table space psapsr3700, tablespace full, <sid> stands, table space, erp reason
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