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Linux kernel could not recognize whole RAM (Doc ID 1448147.1)

Last updated on MAY 01, 2021

Applies to:

Linux OS - Version Oracle Linux 5.5 with Unbreakable Enterprise Kernel [2.6.32] and later
Oracle Cloud Infrastructure - Version N/A and later
Linux x86-64

Symptoms

Physical server running kernel-uek has 256GB RAM but only recognize 3.5GB after bootup.

System log shows:

Cause

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In this Document
Symptoms
Cause
Solution


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