Oracle Linux: Linux Server Crash with "Kernel panic - not syncing: Unexpected ODLM enabled state " "Kernel memory overwrite attempt detected to SLUB object 'acfs_buffer_cache_4k' (offset 0, size 4096)!" (Doc ID 2683582.1)

Last updated on JUNE 18, 2021

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 and later
Linux x86-64
Linux x86

Symptoms

An Oracle Linux (OL) server running Oracle Database with Oracle ASM Cluster File System (ACFS) crashes unexpectedly with the following call stack reported to the system log:

Cause

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Oracle Linux: Linux Server Crash with "Kernel panic - not syncing: Unexpected ODLM enabled state " "Kernel memory overwrite attempt detected to SLUB object 'acfs_buffer_cache_4k' (offset 0, size 4096)!" (Doc ID 2683582.1)

Applies to:

Symptoms

Cause

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