ORA-00600: [4450], [kpotx.c], [2866] on database with XA/dblink transactions

(Doc ID 2169788.1)

Last updated on FEBRUARY 08, 2017

Applies to:

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


Alert log reports errors as below


ORA-00600: [4450], [kpotx.c], [2866] on a database which is doing multiple xa / db link transactions.


the stack includes the functions ktcPopAutonomousFrame <- kpotxpop as below

Error Stack: ORA-600[4450]
Main Stack:
ktcPopAutonomousFrame <- kpotxpop <- opiodr <- ttcpip <- opitsk <- opiino <- opiodr
<- opidrv <- sou2o <- opimai_real <- ssthrdmain <- main



 database upgraded to


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