[Dev] upgrading systemd, upgrading kernel

Schaufler, Casey casey.schaufler at intel.com
Fri Dec 20 23:07:16 GMT 2013

> -----Original Message-----
> From: dev-bounces at lists.tizen.org [mailto:dev-bounces at lists.tizen.org] On
> Behalf Of Artem Bityutskiy
> Sent: Friday, December 20, 2013 4:06 AM
> To: Łukasz Stelmach
> Cc: dev at lists.tizen.org
> Subject: Re: [Dev] upgrading systemd, upgrading kernel
> On Fri, 2013-12-20 at 11:33 +0100, Łukasz Stelmach wrote:
> > I'd like to ask everyone here (and please pass this request to those
> > who are not yet subscribed) to take more care when you upgrade
> something.
> > Especially if the upgraded software depends on components (kernel in
> > this case) that may differ between profiles.
> I am not sure it is correct to say in this case that systemd depends on new
> kernel.
> It is the Tizen security infrastructure which requires several components to
> be patched, including systemd and the kernel.

Before we go too far down the "blame security" path it should be noted that the kernel changes made to the ivi kernel were, with one exception, done for Mobile and are supposed to be present in the Tizen 2.2 kernel. The only one that was not done for Mobile relates to cgroups, and it does not appear from what I've seen that the problems it solves had been encountered yet.

> So the problem is that the security infrastructure was deployed, but the
> Mobile kernel was not patched.

Further, the Mobile kernel was not patched to the level that the Tizen 2.2 kernel was. 

> > BTW. Why do we have separate kernels for IVI and mobile?
> Yes, I am the maintainer of the IVI kernel.
> --
> Best Regards,
> Artem Bityutskiy
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