Create Materialized View In A Cluster Causes Error ORA-7445 [lnxmin()+2126]

SQL> create materialized view MV_POL_INSTRUMENT
cluster policy_cluster (id)
BUILD IMMEDIATE
ENABLE QUERY REWRITE
as
SELECT p.CID,p.PID,p.INSTRUMENTID,p.VALIDFROM,p.QUANTITY,p.MARKETVALUE,p.MARKETDATAID,i.ID,i.NAME,i.CURRENCY,i.FINALFIXING,i.TYPE,i.ROLE,i.NOTIONAL,
i.ISIN,i.VALOR,i.MINTRADESIZE,i.QUOTATIONTYPE,i.INITIALFIXING,i.ISSUEDATE,i.LASTTRADING,i.REDEMPTION,i.MM_SWITCHDATE,i.MM_ROLE
FROM P_POLICYHOLDINGS p, INSTRUMENT i
where I.ID=P.INSTRUMENTID;
cluster policy_cluster (id)
*
ERROR at line 2:
ORA-03113: end-of-file on communication channel
Process ID: 19744
Session ID: 855 Serial number: 27863

and the error reported in alert.log file is:

ORA-7445: exception encountered: core dump [lnxmin()+2126] [SIGSEGV] [ADDR:0xF] [PC:0x904606E] [Address not mapped to object] []

Cluster definition is:

create cluster POLICY_cluster
( "PID" NUMBER )
hashkeys 50000 hash is ora_hash(pid);