[Xen-devel] Re: [PATCH] xen/blkfront: allow xenbus state transition to Closing->Closed when not Connected.

[Jeremy Fitzhardinge <jeremy@xxxxxxxx>]

Jens Axboe wrote:
> On Mon, May 18 2009, Jeremy Fitzhardinge wrote:
>   
> > Ian Campbell wrote:
> >     
> > > This situation can occur when attempting to attach a block device whose backend
> > > is an empty physical CD-ROM driver. The backend in this case will go directly
> > > from the Initialising state to Closing->Closed. Previously this would result in
> > > a NULL pointer deref on info->gd (xenbus_dev_fatal does not return as a1a15ac5
> > > seems to expect)
> > >
> > > Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
> > > Cc: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
> > >   
> > >       
> > Jens, does this look OK to you?
> >
> > Acked-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
> >     
> Looks fine, shall I add it for 2.6.30? Does it need a stable backport?
>   
Yes please, and for .29.  As far as I know there's been no change to 
blkfront, so it should apply as-is.
There's another patch to go with it that I'm just having a closer look 
at.  I'll probably send it your way shortly.
Thanks,
   J

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