Messages in this thread | | | From | Havoc Pennington <> | Date | Fri, 17 Apr 2015 16:27:27 -0400 | Subject | Re: [GIT PULL] kdbus for 4.1-rc1 |
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Hi,
On Fri, Apr 17, 2015 at 3:27 PM, James Bottomley <James.Bottomley@hansenpartnership.com> wrote: > > This is why I think kdbus is a bad idea: it solidifies as a linux kernel > API something which runs counter to granular OS virtualization (and > something which caused Windows to fall behind Linux in the container > space). Splitting out the acceleration problem and leaving the rest to > user space currently looks fine because the ideas Al and Andy are > kicking around don't cause problems with OS virtualization. >
I'm interested in understanding this problem (if only for my own curiosity) but I'm not confident I understand what you're saying correctly.
Can I try to explain back / ask questions and see what I have right?
I think you are saying that if an application relies on a system service (= any other process that runs on the system bus) then to virtualize that app by itself in a dedicated container, the system bus and the system service need to also be in the container. So the container ends up with a bunch of stuff in it beyond only the application. Right / wrong / confused?
I also think you're saying that userspace dbus has the same issue (this isn't a userspace vs. kernel thing per se), the objection to kdbus is that it makes this issue more solidified / harder to fix?
Do you have ideas on how to go about fixing it, whether in userspace or kernel dbus?
Havoc
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