Even though force_tcg works, I intend not to run it on emulation. Is there way I can run it over kvm? The other observation is, without force_tcg if I use the machine type as  pc-i440fx-2.1,accel=kvm it works fine. The default machine type for my host pc-i440fx-2.8, which seems to crib. 

On Sat, 24 Mar 2018 at 09:46 Tanmoy Sinha <tanmoy.sinha@gmail.com> wrote:
Yes it works if I use force_tcg env variable

On Sat, 24 Mar 2018 at 4:37 AM, Richard W.M. Jones <rjones@redhat.com> wrote:

On Fri, Mar 23, 2018 at 05:35:38PM +0000, Tanmoy Sinha wrote:
> Thanks. Reading the defect and the associated thread in
> https://bugs.launchpad.net/qemu/+bug/1661386, I enabled performance
> counters in VMWare guest settings. Now the kvm assertion `ret ==
> cpu->kvm_msr_buf->nmsrs'  is gone. But the qemu/kvm hangs after printing
> "SeaBIOS (version 1.10.2-1)"
>
> I presume this too is a qemu/kvm issue for vmware platforms. Is there any
> existing issue reported?

Does it work if you set:

  export LIBGUESTFS_BACKEND_SETTINGS=force_tcg

?

Rich.

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