Re: [Xen-devel] Error : libxenlight state driver is not active

[Jim Fehlig <jfehlig@xxxxxxxx>]

Pasi Kärkkäinen wrote:
> On Wed, Dec 26, 2012 at 01:39:58AM +0530, Rohit Damkondwar wrote:
>   
>>    Hi all. I recently compiled xen 4.1.3 on Fedora 17(64 bit). The xen entry
>>    appears in the grub. Inspite of booting Fedora, with xen hypervisor entry
>>    , when I start virt-manager, I get an error
>>    " Internal Error : libxenlight state driver is not active "
>>
>>    Can anyone help me on this?
>>     
>
> Are you using xm/xend toolstack? is xend running? if yes, then configure 
> libvirt to use xm/xend driver.
>   

FYI, there is no configuration knob in libvirt for selecting the legacy
xen driver (primarily xend-based) vs the libxl driver.  Assuming both
drivers are included in your libvirt installation, libvirtd will load
the legacy driver if xend is running, otherwise load the libxl driver. 
Changing the configured xen toolstack requires a libvirtd restart.

> I wouldn't recommend using xl/libxl (libxenlight) in Xen 4.1.x, it was a tech 
> preview there,
> and it's more mature in Xen 4.2.x+
>   

Agreed.  You will need libvirt >= 1.0.1 to work with Xen 4.2.x libxl. 
And recall that the libxl driver is missing some functionality wrt the
legacy xend driver, e.g. migration.

Regards,
Jim

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