Re: Cannot find suitable emulator for x86_64

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On Wed, Jun 13, 2018 at 05:59:37PM +0300, Mathieu Tarral wrote:
> >> >
> >> > What version of QEMU do you have installed ?  Libvirt has recently
> >> > become more aggressive at requiring modern QEMU versions, so its
> >> > possible if your old libvirt was running against old QEMU, that
> >> > might not be supported with new libvirt.
> >>
> >> I'm using QEMU 2.8 here.
> >> That might explain why libvirt cannot find a version that is modern enough.
> >
> > 2.8 is plenty new enough, so that's not the issue.
> 
> Alright, so let's focus on libvirt 4.4.0.
> 
> When I start the daemon, i can see some warnings related to QEMU:
> 
> warning : virQEMUCapsInit:942 : Failed to get host CPU cache info
> warning : virQEMUCapsInit:949 : Failed to get host power management capabilities
> 
> Could this be the reason, or the beginning of an explanation ?
> How can I dig and find what is the root cause ?

Best bet is to edit libvirtd.conf and set

  log_filters="1:qemu_capabilities"
  log_outputs="1:file:/var/log/libvirtd.log"

and then rm -rf /var/cache/libvirt/qemu and restart libvirtd. The log
file should tell you it is detecting qemu-system-x86_64 and probing it.
If anything fails it should be covered in the logs.


Regards,
Daniel
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