Re: [Xen-devel] Tapdisk2 problem

[Keir Fraser <keir.fraser@xxxxxxxxxxxxx>]

On 15/08/2010 21:36, "Daniel Stodden" <daniel.stodden@xxxxxxxxxx> wrote:

> On Sun, 2010-08-15 at 16:28 -0400, Keir Fraser wrote:
>> On 15/08/2010 20:35, "Daniel Stodden" <daniel.stodden@xxxxxxxxxx> wrote:
>> 
>>> The problem is that the kernel has those changes. What's going to happen
>>> is that if tapdisk2 anticipates the ring 'message' at offset 17, not 16
>>> as intended, it will fail to find/clear the ring message, while the
>>> kernel will keep it spinning through select(), and that's what you're
>>> seeing.
>>> 
>>> Keir, okay to just pull that stuff?
>> 
>> What stuff to where?
> 
> changeset:   21707:feee0abed6aa
> user:        Keir Fraser <keir.fraser@xxxxxxxxxx>
> date:        Fri Jul 02 18:58:02 2010 +0100
> summary:     blktap2: make protocol specific usage of shared sring
> explicit
> 
> Into 4.0.1.

Okay, done.

 K.

> The offsets were broken by
> 
> changeset:   20267:e9366bed077e
> user:        Keir Fraser <keir.fraser@xxxxxxxxxx>
> date:        Thu Oct 01 12:27:01 2009 +0100
> summary:     VNIF: Using smart polling instead of event notification.
> 
> Not so good?

> Daniel
> 
> 



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