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EDAC errors continuously reported in Linux system log (Doc ID 819474.1)

Last updated on FEBRUARY 17, 2019

Applies to:

Linux OS - Version Oracle Linux 4.4 and later
Oracle Cloud Infrastructure - Version N/A and later
Linux Itanium
Linux x86-64
Linux x86

Symptoms

You are running Oracle Enterprise Linux Release 4 Update 7 (OEL4 U7) or Enterprise Linux 5 Update 2 (OEL5 U2).

The system contains dedicated EDAC hardware, such as Intel 5000 Memory Controller found in a Dell PowerEdge M600 Blade server.

Every second, entries such as the following are reported in the /var/log/messages and ultimately the system hangs:

Apr 8 11:47:53 <HOSTNAME> kernel: EDAC i5000 MC0: NON-FATAL ERRORS Found!!! 1st NON-FATAL Err Reg= 0x800
Apr 8 11:47:53 <HOSTNAME> kernel: EDAC i5000: NON-Retry Errors, bits= 0x800


Low-level hardware diagnostics fail to reveal any memory hardware issues.

Changes

You have recently installed or upgraded the system to Enterprise Linux 4 Update 7 (OEL4 U7) or Enterprise Linux 5 Update 2 (OEL5 U2).

Cause

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In this Document
Symptoms
Changes
Cause
Solution
 1. Blacklist the i5000_edac.ko module
 2. Avoid The Race Condition
References

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