On Wed, Feb 11, 2015 at 09:38:34AM +0800, Linhaifeng wrote: > > > On 2015/2/10 20:04, Michael S. Tsirkin wrote: > > So that's not good. We need a way to negotiate the capability, > > we can't just deadlock with legacy slaves. > > Should we wait many seconds if slave not reply we just return error?
I would prefer something more robust. Isn't there a version field we can use? > -- > Regards, > Haifeng