The rpcbind server uses semaphore sets and shared memory segments. Inspect your BPXPRMxx member in SYS1.PARMLIB and verify that the following statements are configured such that rpcbind will be able to obtain three shared memory segments of one page each, and three semaphore sets:
IPCSHMMPAGES
IPCSHMNSEGS
IPCSEMNIDS
IPCSEMNSEMS
For more information about these SYS1.PARMLIB statements, see z/OS MVS Initialization and Tuning Reference.