Node With Multiple VMs Hangs Due To CPU Stall (Doc ID 2286384.1)

Last updated on NOVEMBER 08, 2018

Applies to:

Oracle VM - Version 3.2.1 and later
Oracle Cloud Infrastructure - Version N/A and later
Information in this document applies to any platform.

Symptoms

A node and all running VMs suddenly become unresponsive forcing a power cycle to clear the problem. After booting, the system operates normally with no further issues. Investigation into the issue reveals the following:

The the ILOM hostconsole.log file for the node shows the following mlx4_core errors followed by CPU stalls with a stack trace. These may repeat several times.

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!

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

Node With Multiple VMs Hangs Due To CPU Stall (Doc ID 2286384.1)

Applies to:

Symptoms

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!