Solution : https://service.sap.com/sap/support/notes/1131092 (SAP Service marketplace login required)
Key words :
profile parameter rdisp/check_enq_wp_run = true, configure additional enqueue work processes, identify hanging enqueue work processes, release incorrect ca blocks, enqueue work processes manually, enqueue work processes hang, active enqueue work process, enqueue work process waits, enqueue work processes automatically, enqueue work processes
Related Notes :
1304197 | Hanging enqueue processes; duplicate releases of WPCA blocks |
1224508 | CST patch collection 27 2008 |