Database not starting with errors Ora-03113 and ORA-7445 dbgc_cra (Doc ID 1358725.1)

Last updated on FEBRUARY 07, 2014

Applies to:

Oracle Database - Enterprise Edition - Version 11.1.0.7 and later
Information in this document applies to any platform.

Symptoms

Problem seen on a two node RAC

One node of the RAC DB was brought down . Later when attempted to start the node, it failed with ORA-03113: end-of-file on communication channel and ORA-01041: internal error. hostdef extension doesn't exist.

Core dump produced

Not every occurrence generated an internal error.  But some cases show

ORA-07445: exception encountered: core dump [dbgc_cra()+4]

Call stack from core file

dbgc_cra kgerse dbkdEventChk lrmpsvp lrmsmv kspptsp kpoparsp ttcpip

Changes

RAC is using spfile.  No known changes made.

Cause

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