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ORA-600 [kpndbcon-svchpnotNULL] Raised by Query Through DBlink (Doc ID 1490700.1)

Last updated on SEPTEMBER 22, 2023

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 11.2]
Oracle Net Services - Version to [Release 11.2]
Oracle Database - Enterprise Edition - Version to [Release 11.2]
Information in this document applies to any platform.


Executing a query over a database link, the alert log reports an error like below:

Errors in file /oracle/app/diag/rdbms/<instance>/trace/<instance>_ora_4490.trc (incident=19372):
ORA-00600: internal error code, arguments: [kpndbcon-svchpnotNULL], [], [], [], [], [], [], [], [], [], [], []
Incident details in: /oracle/app/diag/rdbms/<instance>/incident/incdir_19372/<instance>_ora_4490_i19372.trc

The trace file with the ORA-600 shows characteristics like:

----- Current SQL Statement for this session (sql_id=gfgws4ccmvuvb) -----
select customer_id,cust_first_name,cust_email from customers@dblink
where customer_id < 100 order by customer_id

----- Call Stack Trace -----

... kpnconn npicon0 kpndbcon OCIKDBLinkConn2 OCIKDBLinkConn ddfnet2Normal kkmfcbrm kkmpfcbk qcsprfro qcsprfro_tree ...


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