Re: [Xen-devel] Latest pv_ops (2.6.30-rc3) and xen-unstable

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

Valtteri Kiviniemi wrote:
> Hi,
>
> I am testing the latest pv_ops kernel with xen-unstable. With a quick 
> test run I got everything working except xentop (all the domUs start 
> up with no problem.)
> xentop gives this warning:
>
> root@sm:/# xentop
> Failed to retrieve statistics from libxenstat
>
> and dmesg:
>
> xenbus_probe wake_waiting
> xenbus_probe wake_waiting
> XENBUS: Unable to read cpu state
> XENBUS: Unable to read cpu state
> XENBUS: Unable to read cpu state
> XENBUS: Unable to read cpu state
> XENBUS: Unable to read cpu state
> XENBUS: Unable to read cpu state
> XENBUS: Unable to read cpu state
> XENBUS: Unable to read cpu state
> xenbus_probe_devices backend
> xenbus_probe_devices failed xenbus_directory
> backend_probe_and_watch devices probed ok
> backend_probe_and_watch watch add ok ok
> backend_probe_and_watch all done
> xenbus_probe_devices device
> xenbus_probe_devices failed xenbus_directory
> frontend_probe_and_watch devices probed ok
> frontend_probe_and_watch watch add ok ok
> frontend_probe_and_watch all done
>
> /proc/xen is mounted.
>
> What could be the problem? 
I'm guessing that whatever file it uses for statistics hasn't been 
implemented yet.  Could you have a look at tracking down what files it 
wants to use (strace might be a good start).
   J

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