Solution : https://service.sap.com/sap/support/notes/1240679 (SAP Service marketplace login required)
Key words :
reach central lock handlerdprqiputintoqdpsemrq reason, reach central lock handler, parallel processing condition, internet communication manager, trace file dev_icm, [thr 5344] tue aug 05 07, semrel req_queue [dpxxqueu, rdisp/unwind_1154981 = trueas, central instance occurs, symptom system standstill
Related Notes :
1594405 | ST-SER 2010_1: Maintenance of SAP Kernel issues |
1154981 | stopsap does not shut down system |