MMON Process Failure with ORA-600 [ktcccod-1] Due To ORA-443: BACKGROUND PROCESS "EMNC" DID NOT START (Doc ID 2072622.1)

Last updated on OCTOBER 30, 2015

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.3 and later
Information in this document applies to any platform.

Symptoms

Mixed startup and shutdown messages in alert_<SID>.log :

Sun Aug 30 03:12:28 2015
Shutting down instance (immediate)
Shutting down instance: further logons disabled
Sun Aug 30 03:12:29 2015
Starting background process EMNC
Errors in file /optware/oracle/diag/rdbms/psonrepo/PSONREPO/trace/PSONREPO_mmon_13499.trc:
ORA-00443: background process "EMNC" did not start
Sun Aug 30 03:12:31 2015
SMON: Parallel transaction recovery tried
Starting background process EMNC
Errors in file /optware/oracle/diag/rdbms/psonrepo/PSONREPO/trace/PSONREPO_mmon_13499.trc:
ORA-00443: background process "EMNC" did not start
Starting background process EMNC
Errors in file /optware/oracle/diag/rdbms/psonrepo/PSONREPO/trace/PSONREPO_mmon_13499.trc:
ORA-00443: background process "EMNC" did not start
Errors in file /optware/oracle/diag/rdbms/psonrepo/PSONREPO/trace/PSONREPO_mmon_13499.trc  (incident=5762248):
ORA-00600: internal error code, arguments: [ktcccod-1], [], [], [], [], [], [], [], [], [], [], []
Incident details in: /optware/oracle/diag/rdbms/psonrepo/PSONREPO/incident/incdir_5762248/PSONREPO_mmon_13499_i5762248.trc
Stopping background process QMNC


Call stack:
ktcccod <- kssdel <- kssdch <- ksudlc <- kssdel <- ksupop <- keltclnact
  <- ksb_run_timeout_and_intr_actions_fn <- kebm_open_action
   <- ksb_run_managed_action <- ksbabs <- kebm_mmon_main <- ksbrdp <- opirip <- opidrv <- sou2o
    <- opimai_real <- ssthrdmain <- main

Session Wait History in trace file: waited for 'os thread startup'

Changes

 The shutdown is issued before the startup was complete based on the alert log.

Cause

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