Good afternoon, colleagues!
Oracle Linux Server release 6.4 AND Oracle Database 11g Enterprise Edition Release 188.8.131.52.0 - 64bit Production
Recently in there was an error ORA-07445: exception encountered: core dump [kkorminl () +306] [SIGSEGV] [ADDR:0x7FFFB98B8FE8] [PC:0x9541BA4] [Address not mapped to object]  .
[spoiler] *** 2017-09-26 22:00:41.874
*** SESSION ID: (21.27901 2017-09-26 22:00:41.875
*** CLIENT ID:() 2017-09-26 22:00:41.875
*** SERVICE NAME:(SYS$USERS) 2017-09-26 22:00:41.875
*** MODULE NAME:(DBMS_SCHEDULER) 2017-09-26 22:00:41.875
*** ACTION NAME:(ORA$AT_SQ_SQL_SW_37727) 2017-09-26 22:00:41.875
Dump continued from file: /u01/app/oracle/diag/rdbms/xxi/xxi/trace/xxi_j006_5737.trc
ORA-07445: exception encountered: core dump [kkorminl () +306] [SIGSEGV] [ADDR:0x7FFF42F78FE8] [PC:0x9541BA4] [Address not mapped to object] 
But most of all I am am disturbed here by this situation (already there were 2 cases, in about it anything is not present), see more low.
PROCEDURE LO_Reg PRAGMA AUTONOMOUS_TRANSACTION; BEGIN DBMS_ALERT.Register (' XXX '); END LO_Reg; ORA-04029: error ORA-7445 occurred when querying Fixed TAble/VIEW ORA-06512: at "SYS.DBMS_ALERT", line 78 ORA-06512: at "SYS.DBMS_ALERT", line 102 ORA-06512: at "XXX.LO_REG", line 4
SQL> SELECT count (*) FROM X$KGLOB; ORA-04029: error ORA-7445 occurred when querying Fixed Table/View
In does not form, in it is pure.
DB restart helps, but it not an output for .
Access on a metalink is not had, in view of greed of a manual.
Colleagues, whether there was at somebody something similar?
To what it can be connected?