ORA-600 [kksfbc-wrong-kkscsflgs] or ORA-600 [kksfbc-5wrong-kkscsflgs] and Sessions Waiting on 'cursor: mutex s'' (Doc ID 1067755.1)

Last updated on NOVEMBER 28, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 11.1.0.6 to 11.2.0.1.0 [Release 11.1 to 11.2]
Information in this document applies to any platform.
***Checked for relevance on 22-May-2013***

Symptoms

So far, we have seen these internal errors raised under the 2 following situations:

1. Your computation of Cost-Based Optimizer statistics on partitioned tables, run with parameters: FOR ALL COLUMNS SIZE AUTO,  APPROX_GLOBAL AND PARTITION and DEFAULT for estimate size failed with ORA-600 internal error [kksfbc-wrong-kkscsflgs]

    The LAST_ANALYZED time on each object was current after the statistics computation failed, but you are not sure they are accurate.

2. Your alert log is showing ORA-600 internal error [kksfbc-5wrong-kkscsflgs]. At the same moment, you also noticed several sessions waiting on 'cursor: mutex S'.

Cause

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