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ACFS Filesystem Hangs On AIX (Stack Call : OfsAcquireResourceLite_OSD/ofsvn_close/ofsvn_open/ofsvn_lockctl) (Doc ID 1599592.1)

Last updated on FEBRUARY 16, 2022

Applies to:

Oracle Database Cloud Service - Version N/A and later
Oracle Database - Enterprise Edition - Version to [Release 11.2 to 12.1]
Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Generic UNIX


1) ACFS filesystem hangs on AIX. Processes hang (in a non-killable state) when accessing files in an ACFS file system.

2) Creating, closing, reading, deleting or listing files on the ACFS filesystem are not possible and just hanged (e.g. ls, cd, etc.).

3) Processes blocked in a non-killable state accessing files on ACFS, running on AIX.  Generally, there will be two processes involved in the deadlock, one will be in ofsvn_close() with a kernel stack similar to:

5) Neither of these processes will be killable.




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