On Sat, Feb 22, 2025 at 7:54 PM Benson Muite <benson_mu...@emailplus.org> wrote:
>
>
> Fedora has a policy to support only one kernel.  Projects such as OpenHarmony 
> support multiple kernels to enable reuse of components on devices with a wide 
> range of compute capabilities - in particular mobile and edge devices.  Is 
> this something Fedora would consider doing?  This would potentially benefit 
> spins aimed for mobile and desktop use.

So, the concept of flavors exists, and there is a possibility that we
could enable some additional flavors at some point.  I know I have
been asked about rt kernels, 64K page size kernels for aarch64, etc.
The biggest problem we run into is the way that koji works.    Each
arch is serialized, meaning if we add another flavor of aarch64, it
will double the build time for aarch64 kernels. Because Fedora is
completely open, I have no way to "stage" builds for things like
embargoed CVEs. This means that I can't commit the fix and start the
build until said CVE is public.  As a result, each additional flavor
would have a significant impact on how quickly we can get critical CVE
fixes out to users.  This is one of the main reasons that I am very
careful about additional flavors.   I did float a proposal about
parallelizing builds which might make this less of an issue, though it
still wouldn't completely open flood gates. Fedora is only going to
support additional flavors officially if there are actual users and
testers to ensure that it is both worth the effort, and can maintain
some semblance of quality.

Justin

> Benson
>
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