Re: [Xen-devel] xm list d flag?

[Anthony Liguori <aliguori@xxxxxxxxxx>]

Ewan Mellor wrote:

> A "dying" domain is one that completed shutdown (be it a halt, reboot, crash,
> or suspend) and that Xen is trying to destroy.  If it cannot destroy it, then
> that means that someone is holding references to pages that belong to it.  For
> example, if a driver backend fails to die, then the domain will stay around
> (probably indefinitely).  Such an occurrence is a bug.
>  
One thing to consider is having the drivers destroy the backend devices 
on a @releaseDomain watch instead of on the front-end path disappearing.
@releaseDomain wasn't available when the drivers were first written so 
it wasn't an option then.
This means that Xend does not have to be involved at all in device 
tear-down (except for the higher level stuff when the domain goes away 
completely).
This should more or less solve the zombie domain problem for good.

Thoughts?

Regards,

Anthony Liguori

> Ewan.
>
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>  

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