Solution : https://service.sap.com/sap/support/notes/687395 (SAP Service marketplace login required)
Key words : 
terms disp+work icman msg_server gwrd reason, client server technology area, missing database commits, statistical data records, max_hold_time exceededthe errors, icm patch collection, message server, patch collection, max_hold_time exceededrelease 6, patch levels
Related Notes : 
       
| 682405 | |
| 678214 | |
| 508300 | ICM Patch Collection (Release 6.20) | 
| 42789 | max_hold_time exceeded |