VirtualBox Hosts on Virtual Desktop Infrastructure Desktop Provider Suddenly Hit a 99% of CPU Usage due to looping iSCSI connection (Doc ID 2185056.1)

Last updated on MAY 05, 2017

Applies to:

Oracle Virtual Desktop Infrastructure - Version 3.5 to 3.5.2 [Release 3.0]
Oracle VM VirtualBox - Version 4.2 to 4.2 [Release 4.0]
Information in this document applies to any platform.

Symptoms

VirtualBox hosts on Virtual Desktop Infrastructure (VDI) Desktop Provider (DP) can suddenly hit a 99% of CPU usage:

 

The issue happens on VirtualBox 4.2.30 and 4.2.36 but most likely can happen on other VirtualBox versions as well. 

 

Changes

We have not been able to detect a specific change in the VDI environment that could trigger the issue.

Cause

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