My Oracle Support Banner

OCI Instances Get Out Of Memory (OOM) During Boot Process Due To High Memory Reservation for HugePages (Doc ID 2525532.1)

Last updated on DECEMBER 08, 2022

Applies to:

Oracle Cloud Infrastructure - Version N/A and later
Information in this document applies to any platform.

Symptoms

After rebooting the instance it is not coming back, hence the SSH connection can not be established, this could be checked by connecting to a Serial Console to determine the status on it.

After checking the serial  Console of the instance the following can be observed.

 

  

 

Changes

Some tuning parameters are modified and after that the instance is not coming back after reboot.

One main change that can cause this issue is the incorrect vm.nr_hugepages value, since this can consume all the memory of the server.

Cause

To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document
Symptoms
Changes
Cause
Solution
References


My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.