100.00 %util I/O in Linux VM guest after start live migration (Doc ID 2191462.1)

Last updated on MARCH 08, 2017

Applies to:

Oracle VM - Version 3.4.1 and later
Linux OS - Version Oracle Linux 6.1 with Unbreakable Enterprise Kernel [2.6.39] to Oracle Linux 6.6 with Unbreakable Enterprise Kernel [3.8.13] [Release OL6U1 to OL6U6]
Information in this document applies to any platform.

Symptoms

Before live migration, I/O were normal in the Linux VM guest:

 

Issue happens with Linux VM guest running kernel prior to UEK 3.8.13-68.2.1.

 

Cause

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