Shulou(Shulou.com)06/01 Report--

Recently, I helped a good friend deal with a database system performance problem. After analyzing the awr report and looking at the official documents, I found a 12.1.0.2 bug, which happened to be in service for the customer, opened SR, and the official reply confirmed the problem.

To install this version of the production system, you can turn off the relevant parameter (_ notify_crs=false).

Some awr screenshots are as follows:

APPLIES TO:

Oracle Database-Enterprise Edition-Version 11.2.0.3 and later

Information in this document applies to any platform.

SYMPTOMS

O Grid Infrastructure home and rdbms home is running on 11.2.0.3.7.

O Database instance fail to start, with ORA-7445 [strstr ()]

O The failing process is gen0, and the current Wait Stack shows waiting for 'CRS call completion'

O The call stack of the error is:

ORA-07445: exception encountered: core dump [strstr ()] [SIGSEGV] [ADDR:0x0] [PC:0x3EC307A310] [SI_KERNEL (general_protection)]

Call stack:

[] skdstdst

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