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Re: [Xen-devel] Re: Rename all dying domains to be prefixed with Zombie.

To: Ewan Mellor <ewan@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Re: Rename all dying domains to be prefixed with Zombie. This allows a new domain
From: Anthony Liguori <aliguori@xxxxxxxxxx>
Date: Thu, 06 Oct 2005 10:14:25 -0500
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Ewan Mellor wrote:

On Thu, Oct 06, 2005 at 09:47:23AM -0400, Sean Dague wrote:
If a domain has been destroyed, even if it's a zombie in the dying state, it
will never execute another instruction.  Xen may be unable to clean up after
it, but you are guaranteed that it won't write to the filesystem any longer.
It doesn't need to. There's no guarentee that the backend has flushed all of the data in the write queue until after the domain has been destroyed.

You could potentially have a domain read from a block device and then the dying domain flush some changes to the disk and end up with a corrupted disk.

Regards,

Anthony Liguori

Ewan.

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