SELECT COUNT FAILS DUE TO ORA-07445[QCTCDA+77] (Doc ID 2239948.1)

Last updated on MARCH 16, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 and later
Information in this document applies to any platform.

Symptoms

1. Getting the below error in the alert.log:

ORA-07445: exception encountered: core dump [qctcda()+77] [SIGSEGV] [ADDR:0x38] [PC:0xD10D80D] [Address not mapped to object] []

2. The fix for bug 19910254 is already installed, either through interim patch or PSU patch.

3. Main Stack:
qctcda <- qctoaop <- qctcopn <- qctcpqb <- qctcpqbl <- xtydrv <- kkqcttcalo <- kkqctdrvIT
<- apadrv <- opitca ...

Cause

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