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kernel panic when loading ACFS driver in an OS with very large memory and failed on ofs_hash_create_int function (Doc ID 2283799.1)

Last updated on FEBRUARY 20, 2019

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Information in this document applies to any platform.


OS keep rebooting when loading ACFS kernel driver (in this case, customer is installing a DBBP patch, and the patching activity invoked "modprobe" to load ACFS driver; however this problem can also happen on other scenario).
Rebooting the OS with rescue mode, and checked the core dump file, below callstack is observed:



OS memory is upgraded from 6TB to 12TB 


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