Solution : https://service.sap.com/sap/support/notes/1670425 (SAP Service marketplace login required)
Key words :
sap system, system issues, error mch3601, location referenced, logon hangs, specific parameters, processes mentioned, critical parameters, ipc/shm_psize, initially noticed
Related Notes :
| 808607 | iSeries: Memory management in a system based on PASE |