After Database Crash, Database with TDE and HSM Fails to Open With ORA-07445 [nzty1aa_algapply]
(Doc ID 1392294.1)
Last updated on FEBRUARY 04, 2020
Applies to:Oracle Database - Enterprise Edition - Version 18.104.22.168.0 and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.
The database is using TDE tablespace encryption and using HSM to store the master encryption key. After a database crash, the database fails to open with:
ORA-07445: exception encountered: core dump [nzty1aa_algapply()+221] [SIGSEGV] [ADDR:0x0] [PC:0x7F4AAA516B3B] [Address not mapped to object] 
This problem addresses only the recovery stage of a database after a non-graceful shutdown.
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