Re: [Xen-devel] Re: Getting rid of xenbus_suspend(): tpmfront driver impacted?

["Jacob Gorm Hansen" <jacobg@xxxxxxx>]

On 11/5/06, Stefan Berger <stefanb@xxxxxxxxxx> wrote:

> In terms of time needed for migration there won't be a difference. Is
> supporting that .suspend really so problematic?
I would love to see .suspend go away, when doing self-checkpointing or
self-migration it is very annoying to have to shut down external state
at a point where things are supposed to be atomic in the middle of
trying to take a checkpoint.

Can't you problem be solved simply by retrying the last TMP
transaction if it fails, similar to how syscalls can fail in
UNIX/Linux? Surely the backend has to be able to deal with these kinds
of failure modes, or the guest would be able to DoS it pretty easily.

Jacob

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