ORA-07445 [_memset] [SIGSEGV] and PMON Terminated the instance

(Doc ID 1223333.1)

Last updated on NOVEMBER 28, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 11.1.0.7 and later
Information in this document applies to any platform.
*** Checked for relevance on 26-Apr-2013 ***

Symptoms

Database terminated by PMON with the following errors:

Exception [type: SIGSEGV, Address not mapped to object] [ADDR:0xFFFFFFFF7FFF5C28] [PC:0xFFFFFFFF7C700F78, _memset()+120]
ORA-07445: exception encountered: core dump [_memset()+120] [SIGSEGV] [ADDR:0xFFFFFFFF7FFF5C28] [PC:0xFFFFFFFF7C700F78] [Address not mapped to object] []

ORA-00490: PSP process terminated with error
PMON (ospid: 24602): terminating the instance due to error 490


If we look in Call Stack Trace section of the trace file generated by the error, we can find the following functions:

sdbgrfcvp_convert_pathinfo <- sdbgrfcfpf_convert_fileloc_pfname <- dbgrlWriteAlertDetail_int

Cause

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