DB Crashed With ORA-07445 [kgnfs_check_for_timedout_requests()+1332] (Doc ID 1641982.1)

Last updated on NOVEMBER 28, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 to 11.2.0.4 [Release 11.2]
Information in this document applies to any platform.

Symptoms

Alert log reports errors like:

...
Exception [type: SIGSEGV, Address not mapped to object] [ADDR:0x10C] [PC:0x107EEC7D4, kgnfs_check_for_timedout_requests()+1332] [flags: 0x0, count: 1]
Errors in file /oracle/diag/rdbms/csprd/CSPRD/trace/CSPRD_ora_1210.trc  (incident=513980):
ORA-07445: exception encountered: core dump [kgnfs_check_for_timedout_requests()+1332] [SIGSEGV] [ADDR:0x10C] [PC:0x107EEC7D4] [Address not mapped to object] []
Errors in file /oracle/diag/rdbms/csprd/CSPRD/trace/CSPRD_ora_1213.trc  (incident=514460):
ORA-07445: exception encountered: core dump [kgnfs_check_for_timedout_requests()+1332] [SIGSEGV] [ADDR:0x10C] [PC:0x107EEC7D4] [Address not mapped to object] []

...


The trace file indicates the error is raised by RMAN backup of archivelogs:

...
*** 2014-02-22 01:36:05.789
*** SESSION ID:(346.6353) 2014-02-22 01:36:05.789
*** CLIENT ID:() 2014-02-22 01:36:05.789
*** SERVICE NAME:(SYS$USERS) 2014-02-22 01:36:05.789
*** MODULE NAME:(backup archivelog) 2014-02-22 01:36:05.789
*** ACTION NAME:(0000230 STARTED16) 2014-02-22 01:36:05.789

Dump continued from file: /oracle/diag/rdbms/csprd/CSPRD/trace/CSPRD_ora_1210.trc
ORA-07445: exception encountered: core dump [kgnfs_check_for_timedout_requests()+1332] [SIGSEGV] [ADDR:0x10C] [PC:0x107EEC7D4] [Address not mapped to object] []

----- SQL Statement (None) -----
Current SQL information unavailable - no cursor.
----- PL/SQL Stack -----
----- PL/SQL Call Stack -----
 object      line  object
 handle    number  name
4f2c2bb00      1372  package body SYS.DBMS_BACKUP_RESTORE
...

Cause

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