Re: [Xen-devel] [PATCH] Improve xenbus timeout error message

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 30 Jun 2006, at 16:44, Ewan Mellor wrote:

> >         The problem is that the timeout occurs before the xennet module can
> > ever be loaded, which is to be expected. Anything that can be done to
> > avoid the timeout in this case?
> The timeout is there to ensure that the boot does not proceed until 
> all the
> devices needed during boot are available.  In this case, since it's a 
> vif, if
> you were using an NFS root then your boot would presumably fail.
>
> If you need to improve this, you will have to have some way to tell 
> the tools
> "these devices I need for boot, these I don't", and then have the 
> tools put a
> flag in the store so that Xenbus knows that it doesn't need to wait 
> for them.
The obvious thing to do here is work out which devices haven't been 
picked up by any driver, and not wait on those since they are obviously 
not going to connect! We should either silently ignore those, or maybe 
print a list of them for information.
 -- Keir


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