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Re: x15
From: |
Olaf Buddenhagen |
Subject: |
Re: x15 |
Date: |
Wed, 17 Dec 2014 11:43:37 +0100 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
Hi,
On Mon, Dec 15, 2014 at 02:43:20PM -0500, Kete wrote:
> On 2014-12-12 18:54, Olaf Buddenhagen wrote:
> >On Mon, Dec 08, 2014 at 06:10:26PM -0500, Kete wrote:
> >>Smartphone users would benefit from this x15
> >
> >Why smartphones in particular?...
> * much less code taking up crucial space on the device
Microkernel architectures actually need more code for the same
functionality than monolithical ones.
> * Things that should be in user mode are highly vulnerable in the
> Android kernel space.
Agreed -- but that's not different from desktops.
> * Android Linux upgrades take a long time to download.
The actual changes for a given fix are probably not bigger than they
would be on a microkernel system. You would need an upgrade method based
on binary diffs though to download only the actual changes. Plus, if the
newer kernel is built with a different compiler, you would still get
many gratuitous changes...
So this is indeed a point where mobile devices are somewhat more
affected -- though I for my part wouldn't consider this a major issue...
> * Hardware vendors do not run their drivers through the Linux
> community, so current drivers do not get updated for subsequent
> kernels.
I don't see how a microkernel architecture is supposed to help with
that? The issues of binary drivers and lack of ABI compatibility for
Linux modules seems entirely unrelated with the kernel architecture to
me...
> * Vulnerabilities are much easier to spot and patch in 100,000 lines
> of code than 14,000,000.
Again, that's right, but not different from other form factors.
All in all, while I certainly agree that microkernel architectures have
a bunch of advantages, I still don't see why this would be any more
important for smartphones than for desktops...
-antrik-
- Re: x15, (continued)
- Re: x15, Aurélien DESBRIÈRES, 2014/12/15
- Re: x15, Aurélien DESBRIÈRES, 2014/12/15
- Re: x15 (was: The next step of GNU in pure technical perspective), Richard Stallman, 2014/12/16
- Re: x15, Aurélien DESBRIÈRES, 2014/12/17
- Re: x15, Aurélien DESBRIÈRES, 2014/12/17
- Re: x15, Olaf Buddenhagen, 2014/12/19
- Re: x15 (was: The next step of GNU in pure technical perspective), Kete, 2014/12/15
- Re: x15, Aurélien DESBRIÈRES, 2014/12/15
- Re: x15, Richard Stallman, 2014/12/17
- Interoperability (was: x15), Olaf Buddenhagen, 2014/12/19
- Re: x15,
Olaf Buddenhagen <=
- Re: microkernels (was x15), Kete, 2014/12/19