Solution : https://service.sap.com/sap/support/notes/598089 (SAP Service marketplace login required)
Key words : 
symptom sap work processes hang, individual user tasks hang, t55        0x1cf  user           2720  excl, importing sap db software 7, sap db software immediately, t56        0x1cf  user           703  rootshare, t58        0x1cf  user           2360  rootshare, sap db version 7, user <sid>adm, sap transaction sm49
Related Notes : 
       
| 620218 | Installing SAP DB Version 7.3.00 B33 or higher (BW, CS) | 
| 530567 | Importing SAP DB Version 7.3.00 B33 or higher (OLTP) |