ORA-27504 while starting 11gR1 database with 11gR2 Grid Infrastructure

I have Oracle11g R2 (11.2.0.1) Grid infrastructure on a two node RAC. Installed 11.1.0.7 binaries and when attempting to create a database, encountered the following errors:

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

On researching, found the following solution to fix those errors and was able to create the 11.1.0.7 database with 11gR2 grid infrastructure:

As root:

[root@eletrac01 bin]# ./olsnodes -t -n

eletrac01 1 Unpinned
eletrac02 2 Unpinned


[root@eletrac01 bin]# ./crsctl pin css -n eletrac01 eletrac02
CRS-4664: Node eletrac01 successfully pinned.
CRS-4664: Node eletrac02 successfully pinned.
[root@eletrac01 bin]#

[root@eletrac01 bin]# ./olsnodes -t -n
eletrac01 1 Pinned
eletrac02 2 Pinned
[root@eletrac01 bin]#