Hypervisors run out of memory when using Huge Pages
Issue
- After configuring some Virtual Machines with Huge Pages, some hosts are running out of memory and triggering oom-killer or crashing.
- Free Scheduling Memory calculation is wrong after configuring Huge Pages
- Memory overcommit is disabled but on hosts running Virtual Machines with Huge Pages there is visible overcommit.
Environment
- Red Hat Virtualization 4.3.8
- ovirt-engine-4.3.8.2-0.4.el7.noarch
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