ORA-07445 [oss_initialize] or ORA-07445 [_memset()] While Quering v$asm_diskgroup (Doc ID 1643015.1)

Last updated on NOVEMBER 28, 2016

Applies to:

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

Symptoms

1. Following error reported in the alert log:

ORA-07445: exception encountered: core dump [_memset()+136] [SIGSEGV] [ADDR:0x100BC6EE0] [PC:0xFFFFFFFF7B100F88] [Invalid permissions for mapped object] []

OR

ORA-07445: exception encountered: core dump [oss_initialize()+82] [SIGSEGV] [ADDR:0x3B3C020] [PC:0x7FA47EEFE61A] [Invalid permissions for mapped object]


2. Above ORA-7445 occurred while query the v$ASM_DISKGROUP

----- Current SQL Statement for this session (sql_id=9nm37kfjhf4x3) -----
select total_mb/1024,free_mb/1024,name from v$asm_diskgroup


3. The call stack from the trace file includes oss_initialize function, e.g.

----- Call Stack Trace -----
... sigacthandler  memset  oss_initialize  kfk_oss_initialize  kfk_check_load_lib_  asminst   kfkOpen  asminst  kfddsGet ...

Cause

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