Update May Raise One or Some ORA-7445 Error(s) With First Argument Like [_memcpy], [_intel_fast_memcpy.A], [_memmove], [kgidum] or [kgscDump]
(Doc ID 729206.1)
Last updated on AUGUST 04, 2018
Applies to:Oracle Database - Enterprise Edition - Version 22.214.171.124 to 10.2.0.4 [Release 9.2 to 10.2]
Information in this document applies to any platform.
***Checked for relevance on 17-Nov-2011***
You could be getting either of the following errors in the alert.log or all of them while running an update statement:
ORA-07445: exception encountered: core dump [kgidum()+1536] [SIGSEGV] [Address not mapped to object] [0x9FFFFFFFBF200000]  
ORA-07445: exception encountered: core dump [kgscDump()+1376] [SIGSEGV] [Address not mapped to object] [0xB38F00000000B1] 
ORA-7445: exception encountered: core dump [_memcpy()+2369] [SIGSEGV]
[Invalid permissions for mapped object] [0x9FFFFFFFBF448028]  
ORA-07445: exception encountered: core dump[_intel_fast_memcpy.A()+10] [SIGSEGV] [Invalid permissions for mapped object] [0x2A9768C000]  
The call stack extracted from the trace file for the above error(s) will look similar to:
In cases, the call stack functions may be presented like:
If you enable the 1551 event tracing, a trace file is generated at the time of the internal error reporting the following:
ORA-01551: extended rollback segment, pinned blocks released
Upgraded to 126.96.36.199 or 10.2.0.4.
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