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UEK Kernel Oops During Kdump Dumping Vmcore File On HP ProLiant Server (Doc ID 1384274.1)

Last updated on APRIL 15, 2019

Applies to:

Linux OS - Version Oracle Linux 5.5 with Unbreakable Enterprise Kernel [2.6.32] to Oracle Linux 5.7 with Unbreakable Enterprise Kernel [2.6.32] [Release OL5U5 to OL5U7]
Oracle Cloud Infrastructure - Version N/A and later
Linux x86-64

Symptoms

While testing kdump on Oracle Linux UEK(Unbreakable Enterprise Kernel),
kdump get following error while it dumping the vmcore file:

BUG: unable to handle kernel NULL pointer dereference at (null)

At that time, the vmcore file does not completely copied to the target location.
The same server using RHC(Redhat Compatiable) kernel can dump the complete vmcore file successfully.
The problem still the same after upgrading the firmware and UEK to the latest version.

Changes

Switch to UEK

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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