[openib-general] Re: ipoib multicast timeouts

[Hal Rosenstock]

On Tue, 2006-03-28 at 18:16, Roland Dreier wrote:
>     Sean> Can (or should it be permitted for) a userspace process join
>     Sean> the same group as one used by ipoib?
> 
> Well, that's the question.  I don't think there's not any strong
> reason to forbid it, except to make implementation easier.  Joining
> the group isn't the problem -- the thing we have to make sure of is
> that a userspace process can't leave a group that IPoIB still wants to
> be a member of.

In this case, the userprocess can "leave" (that would be a local
operation) but the endnode shouldn't until some ref count on the group
is 0.

-- Hal