Getting ORA-7445 [_memmove()+64] and Instance Crashed (Doc ID 1294148.1)

Last updated on FEBRUARY 07, 2014

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.4 to 11.2.0.2 [Release 10.2 to 11.2]
Information in this document applies to any platform.

Symptoms

In the alert log file there are reported errors like:

ORA-07445: exception encountered: core dump [_memmove()+64] [SIGBUS]
                       [Invalid address alignment] [0x0.........] [] []

and instance crashed.

The trace files generated by these errors are truncated (not relevant) or have no information (0 bytes).

Cause

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