On Sat, Mar 14, 2015 at 1:26 AM, Ted Mielczarek <[email protected]> wrote:

> Before we go buying a machine and sticking it under someone's desk
> (although let's not rule that out entirely!) I filed a bug[1] to see if
> we have any existing machines that are virtual machine hosts that have a
> usable CPU such that we could enable performance counters[2] and run rr
> in a VM there.
>

Due to a VMWare hypervisor bug (
http://robert.ocallahan.org/2014/09/vmware-cpuid-conditional-branch.html),
while rr can limp along on VMWare it's not very good and reverse execution
probably doesn't work at all. So it's better to avoid VMWare.

Rob
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