ORA-27504: IPC error creating OSD context

Error:

Errors in file /u01/app/oracle/admin/DEMO/udump/demo1_ora_29106.trc:
ORA-27504: IPC error creating OSD context
ORA-27300: OS system dependent operation:skgxnqtsz failed with status: 0
ORA-27301: OS failure message: Error 0
ORA-27302: failure occurred at: SKGXN not av
clsssinit ret = 21
interconnect information is not available from OCR
  WARNING: No cluster interconnect has been specified. Depending on
           the communication driver configured Oracle cluster traffic
           may be directed to the public interface of this machine.
           Oracle recommends that RAC clustered databases be configured
           with a private interconnect for enhanced security and
           performance.

Workaround:

Add this parameter in init file cluster_interconnects=192.168.1.201