Re: [Xen-devel] [PATCH] serialize suspend-resume process

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 31/7/08 12:09, "BVK Chaitanya" <bayapuneni_chaitanya@xxxxxxxxxxxx> wrote:

> With current suspend-resume code, there is no way for DOM-0 to identify
> that DOM-U resume is completed.  It can potentially trigger suspend
> again before resume is completed.
> 
> Below patch makes suspend-resume process serialized.

It's already supposed to be serialised, and there's a loop in xen_suspend()
to deal with up to one queued suspend request. Your patch may deal with an
arbitrary number of queued suspend requests, but a sane dom0 control stack
should never issue more than one suspend request in a suspend-resume cycle.

 -- Keir



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