Why do virtual machines experience latencies of several seconds when KSM (Kernel Same-page Merging) is enabled?
Issue
- Why do virtual machines experience latencies of several seconds?
- Why are soft lockups reported in VMs and/or virtualization hosts?
Environment
- Red Hat Enterprise Linux 6 or 7 as a virtualization host.
- Red Hat Enterprise Virtualization Hypervisor.
- KSM (Kernel Same-page Merging) enabled.
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