Solution : https://service.sap.com/sap/support/notes/307147 (SAP Service marketplace login required)
Key words : 
memory mapping  ow44184  binary semaphore enhancements  pq37722   binary semaphore enhancementsyou, terms db2 os390 mvs tuning semaphore solution contents, apar      description  -------------------------------------------------------------------  ow42598  real storage manager improvements, disable smf record type 92explanation, unix file system activities, racf profilethe profile bpx, smf record type 92, apar ow44184, smf record 92 added, racf auditing call
Related Notes : 
       
| 201496 | OS/390 appl.server problem with semaphores | 
| 81737 | DB2-z/OS: APAR List |