Re: [PATCH] vhost: fix MQ fails to startup

[Yuanhan Liu <yuanhan.liu@linux.intel.com>]

On Fri, Apr 28, 2017 at 03:35:53PM +0800, Yuanhan Liu wrote:
> > >Maybe we could introduce a version message? With that, we could tell
> > >whether the frontend has fixed the known bug or not.
> > 
> > That's a possibility, but this is not really the role of a protocol
> > version. As in this case, the protocol does not change, just an
> > implementation.
> 
> Maybe. Well, you might could think this way: we do increase the version
> when we make a new release (with bugs being fixed).
> 
> Or, we could also make the version two parts: major and minor. We increase
> major for major updates (say, new features, etc). We increase minor for
> bug fixes.

Nah, just forgot above two paragraphs, I overlooked it. You just need
care the below one.

	--yliu

> The only thing that doesn't make too much sense is the bug is actually
> from the QEMU implementation but not from the vhost-user spec. Talking
> about that, it may make more sense to introduce a new message to carry
> the frontend version, something like a string "QEMU v2.8".