Solution : https://service.sap.com/sap/support/notes/1105125 (SAP Service marketplace login required)
Key words : 
-date ufo cache entries, avoid lengthy hang situations, mutex px0 successfully closed, mutex px0 successfully initialized, mutex interface repeatedly rejects, avoid mutex errors, grabbing unaccounted sharelock, mtx=fffffffe5cc42010 [mtxxx, short dump pxa_mutex_unlock_error, error => invalid eyecatcher 0
Related Notes : 
       
| 1155364 | Short dump LOAD_PROGRAM_NOT_FOUND or LOAD_CLASS_NOT_FOUND | 
| 1105129 | Programs exist in the program buffer several times | 
| 879289 | Support Package Stack Guide - SAP NetWeaver 7.0 |