ORA-7445[lnxnucoptg] when Selecting Across a Dblink Over OCI
(Doc ID 563343.1)
Last updated on MARCH 28, 2019
Applies to:Oracle Database - Enterprise Edition - Version 10.2.0.3 and later
Information in this document applies to any platform.
This problem can occur on any platform.
This issue was observed on Oracle 10.2.0.2 on a HP Tru64 server
Two databases, for example database A and database B, are involved.
The A database has views with a database link to tables in the B database.
A front end application sends a query to the A database to read data from the B database through the views in A. This may be done many times successfully.
However, on occasion, a core dump occurs, and when this happens, the application will not process any more queries; it must be restarted. The front end application will also return erroneous data.
The alert log may show these errors:
ORA-07445: exception encountered: core dump [unknown] [SIGSEGV] [Address not mapped to object]
[0x80D0515C4]  
The function stack indicates the error occurred while converting a number to a character string.
lnxnucoptg lnxnucopt kpudcn2c ttcaGetPiece ttccpwg ttcfour ttcdrv nioqwa upirtrc
kpurcsc kpufch0 kpufch OCIStmtFetch2 oci8 kpnfch
opifch2 opiall0 opial7
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