[Qemu-devel] Re: [kvm-devel] Feedback and errors

[Avi Kivity]

Daniel P. Berrange wrote:
> > I guess using file locking by default would improve the situation, and 
> > we can add a -drive ...,exclusive=no option for people playing with 
> > cluster filesystems.
> >     
>
> Turning on file locking by default will break existing apps / deployments
> using shared disks. IMHO this is a policy decision that should be solved 
> at ahigher level in the management stack where a whole world view is 
> available rather than QEMU which only knows about its own VM & host.
>   

Running a newer qemu with an older libvirt would pose a problem, yes.  
But we shouldn't ignore unmanaged deployments.

--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.