Re: [PATCH 00/12] Add kdbus implementation

From: Andy Lutomirski
Date: Wed Oct 29 2014 - 18:34:46 EST


On Wed, Oct 29, 2014 at 3:27 PM, Greg Kroah-Hartman
<gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
> On Wed, Oct 29, 2014 at 03:15:51PM -0700, Andy Lutomirski wrote:
>> (reply 1/2 -- I'm replying twice to keep the threading sane)
>>
>> On Wed, Oct 29, 2014 at 3:00 PM, Greg Kroah-Hartman
>> <gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
>> > kdbus is a kernel-level IPC implementation that aims for resemblance to
>> > the the protocol layer with the existing userspace D-Bus daemon while
>> > enabling some features that couldn't be implemented before in userspace.
>> >
>>
>> > * Support for multiple domains, completely separated from each other,
>> > allowing multiple virtualized instances to be used at the same time.
>>
>> Given that there is no such thing as a device namespace, how does this work?
>
> See the document for the details.
>
>> The docs seem a bit confusing to me as to whether there's a hierarchy
>> of domains. Do domains have a concept of a parent?
>
> Yes.

Why? Aren't they completely isolated? Confused.

>
>> What's "container-name"?
>
> Is that used in the documentation?

/dev/kdbus/domain/<container-name>/+ directory shows up inside the
domain as /dev/kdbus/.

I guess that's the thing that the creator requests.

--Andy

>
>> Given that domains have random IDs, how can they be checkpointed and restored?
>
> Good question, I don't know about checkpoint/restore, but I think that
> has been done. Daniel would know more than I do about that.
>
> thanks,
>
> greg k-h



--
Andy Lutomirski
AMA Capital Management, LLC
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