Solution : https://service.sap.com/sap/support/notes/489215 (SAP Service marketplace login required)
Key words : 
update database table smofsystem, symptom data interchange, attached program corrections, deadlock occurs due, table smofsystem, deadlock occurs, /3 backend system, parallel access, longer processed, terms load
Related Notes : 
       
| 450366 | SAPKU30007: Support Package 7 for EBP 3.0/CRM 3.0 |