vmm: Add "no-kvmapf" to the kernel command line #28
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With recent Guest kernels, there appears to be an unexpected interaction between KVM asynchronous page fault and some other VM mechanism that causes the vCPU to return immediately to the Guest on "hlt", leading to the thread managing vcpu 0 to spin up with ~99% of CPU usage. Turn KVM asynchronous page fault for the moment. We'll revisit this issue in the future. Signed-off-by: Sergio Lopez <slp@redhat.com>
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With recent Guest kernels, there appears to be an unexpected
interaction between KVM asynchronous page fault and some other VM
mechanism that causes the vCPU to return immediately to the Guest on
"hlt", leading to the thread managing vcpu 0 to spin up with ~99% of
CPU usage.
Turn KVM asynchronous page fault for the moment. We'll revisit this
issue in the future.
Signed-off-by: Sergio Lopez slp@redhat.com