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Re: [libvirt] qemu driver fails to load on Xen after be0782e1



Jim Fehlig wrote:
> Until recently, the qemu driver has always succeeded in loading even on
> a system booted to Xen.  Commit be0782e1 broke this, hence libvirtd no
> longer loads
>
> xendom0 # /usr/sbin/libvirtd -l
> 2014-08-04 22:27:31.586+0000: 35859: info : libvirt version: 1.2.8
> 2014-08-04 22:27:31.586+0000: 35859: error :
> virFileGetDefaultHugepageSize:2958 : internal error: Unable to parse
> /proc/meminfo
> 2014-08-04 22:27:31.586+0000: 35859: error : virStateInitialize:749 :
> Initialization of QEMU state driver failed: internal error: Unable to
> parse /proc/meminfo
> 2014-08-04 22:27:31.586+0000: 35859: error : daemonRunStateInit:922 :
> Driver state initialization failed
>
> Problem is the Xen kernel does not provide any huge page info in
> /proc/meminfo
>
> xendom0 # cat /proc/meminfo | grep -i huge
> xendom0 #
>   

BTW, I think this would be the case for any kernel with
CONFIG_HUGETLB_PAGE turned off.

> Michal, short of always building with '--without-qemu' on a Xen system,
> is it possible to make detection of huge pages less fatal wrt loading
> the qemu driver?
>   

E.g. assume zero/default for entries not present?

Regards,
Jim


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