ORA-00600: [ktcpoptx_0], [0x84AEF9900], ORA-00604, ORA-00018: MAXIMUM NUMBER OF SESSIONS EXCEEDED (Doc ID 954419.1)

Last updated on NOVEMBER 28, 2016

Applies to:

Oracle Server - Enterprise Edition - Version: 10.2.0.1 to 11.2.0.1 - Release: 10.2 to 11.2
Information in this document applies to any platform.
***Checked for relevance on 01-Mar-2012***

Symptoms

Encountered the following errors in the alert.log:

ORA-00600: internal error code, arguments: [ktcpoptx_0], [0x84AEF9900], [0x84AEF9900], [604], [], [], [], []
ORA-00604: error occurred at recursive SQL level 1
ORA-00018: maximum number of sessions exceeded

sessions = 555

 ----- Call Stack Trace -----

ksedst <- ksedmp <- ksfdmp <- kgerinv <- kgeasnmierr  <- ktcpoptx <- psdatx <- pfruatxs <- pfrust <- pfrfxh   <- pfrexc <- pfrrun <- plsql_run <- peicnt <- kkxexe <- opiexe <- kpoal8 <- opiodr <- ttcpip <- opitsk   <- opiino <- opiodr <- opidrv <- sou2o <- opimai_real <- main

Cause

Sign In with your My Oracle Support account

Don't have a My Oracle Support account? Click to get started

My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms