ORA-07445 [kcbzdh() ] And DIAG Process Terminates Or Database Crashes (Doc ID 1364552.1)

Last updated on NOVEMBER 28, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.3 and later
Information in this document applies to any platform.

Symptoms

Your database has crashed with the alertlog showing the following error:

ORA-07445: exception encountered: core dump [kcbzdh()+784] [SIGBUS] [Invalid address alignment] [0x00005F46E] [] []


Reviewing the trace file, your stack trace will be similar to:

ksedmp <- ssexhd <- sighndlr <- call_user_handler <- sigacthandler <- kcbzdh <- kcbdbh <- kcbassertb <- kcbr_validate_read <- kcbr_apply_pending <- kcrpdv <- kxfprdp <- opirip <- opidrv <- sou2o <- opimai_real <- main <- start

Cause

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