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

Last updated on MARCH 01, 2019

Applies to:

Oracle VM - Version 3.2.1 and later
Information in this document applies to any platform.

Symptoms

This document applies to Oracle Linux-based hosts with Oracle Linux-based guest VMs on engineered systems and non-engineered systems alike with one exception.  This document does NOT apply to Oracle Exadata Cloud systems (OCI, OCI-C, ExaCC, etc).  If you believe you are encountering the problem described here in an Oracle Exadata Cloud environment then please open a Service Request with Oracle Support.

For Exadata Cloud systems, refer to Doc ID 2459851.1.

 

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:

  

Cause

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