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

Last updated on SEPTEMBER 23, 2019

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 10.2 to 11.2]
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Oracle Database Cloud Schema Service - Version N/A and later
Information in this document applies to any platform.
***Checked for relevance on 01-Mar-2012***


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


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