Ora-07445 Exception Encountered Core Dump Nauk5a3recvclientauth() While Connecting Via KERBEROS (Doc ID 880603.1)

Last updated on NOVEMBER 22, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.4 and later
Information in this document applies to any platform.
Checked for relevance on 16-May-2016

Symptoms

The following error is dumped intermittently in the alert.log:

ORA-07445: exception encountered: core dump [nauk5a3recvclientauth()+568] [SIGSEGV] [Address not mapped to object] [0x000000008] [] []


Call Stack of the dump trace shows:

ksedmp <- ssexhd <- sighndlr <- call_user_handler <- nauk5a3recvclientauth
   <- nauk5avalidate <- nau_scn <- na_csrd <- na_server <- naconnect
     <- nsnadoconn <- nsnaconn <- niotns <- osncon <- kpkiadef
        <- upiini <- upiah0 <- kpuatch <- OCIServerAttach <- opiino
          <- opiodr <- opidrv <- sou2o <- opimai_real <- main
            <- start


The sqlnet trace of the matching server process at level 16 shows the following :

snauk5t_close_file: exit
nauk5rb_rcstore: Returning 34: Request is a replay
...
nauk5rb_rcstore: exit
nauk5ky_rd_req_decoded: snaumgh_gethostinfo failed.
nauk5fq_free_principal: entry
nauk5fq_free_principal: exit
nauk5fq_free_principal: entry
nauk5fq_free_principal: exit
nauk5ky_rd_req_decoded: Returning 34: Request is a replay
...
nauk5ky_rd_req_decoded: exit
nauk5fq_free_principal: entry
nauk5fq_free_principal: exit
nauk5kz_rd_req_simple: Returning 34: Request is a replay
...
nauk5kz_rd_req_simple: exit
nauk5ahgetcontext: entry
nauk5ahgetcontext: Using default context.
nauk5ahgetcontext: exit
nauk5kz_rd_req_simple: nauk5kz_rd_req_simple: Request is a replay
...
nauk5fq_free_principal: entry
nauk5fq_free_principal: exit
nauk5a_process_RDREQ: failed
nauk5a_process_RDREQ: exit

Cause

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