On Fri, Apr 10, 2015 at 4:36 PM, Ryan Stone <ryst...@gmail.com> wrote:
> Using the TSC as the default timecounter in a VM is dangerous. On some
> hardware, the TSC is not synchronized across all CPU cores. This means
> that if a VM migrates from one core to another, it could see the
> timecounter value go backwards. Time jumping backwards can cause all kinds
> of hilarity.
> What's really needed is for bhyve to support KVM clock or a similar scheme
> (brianv@ might also still need to commit the guest side of KVM clock as
I still need to after addressing some review comments first, but I've been
perpetually busy with my job. I hope to get to it RealSoon.
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