Re: [Xen-devel] [Xen-users] Why the need for "-f" with XL in Xen 4.2 rev-25467

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Thu, 2012-06-21 at 12:40 +0100, George Dunlap wrote:
> On Thu, Jun 21, 2012 at 6:20 AM, Ian Campbell <Ian.Campbell@xxxxxxxxxx> wrote:
> > The reason for this check to prevent xl from running while xend is
> > active is that using xl while xend is running can lead to subtle and
> > confusing bugs.
> 
> Just to emphasize the point: about a month ago I spent 3 full days
> trying to track down what I thought was an ugly reference-counting
> error on domain destruction, but turned out just to be xend running in
> the background and messing with things behind xl's back.  That's what
> prompted us to put in the check. :-)
> 
> Perhaps the warning should explicitly mentioning disabling xend as the
> best solution?

Yes, I think that would be a good idea.

> 
>  -George



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