Monday, 13 March 2023

Re: Lowlatency Kernel is behind in Ubuntu Studio

On Monday, March 13, 2023 10:29:50 AM PDT Dimitri John Ledkov wrote:
> Ideally all flavours would be at 6.2 already, but due to various
> reasons they are not.

This is understandable and perfectly reasonable.

> This is not unique to lowlatency flavour, and applies to kvm, azure,
> raspi, and many more kernel flavours all of which are still on v5.19
> in Lunar.

My point is that lowlatency shouldn't be grouped-in to these flavors, but
should be given higher priority and grouped-in with generic since it's still
used in desktop systems by default and is directly affecting the testing of an
official flavor of Ubuntu. This was one of the reasons we had to miss testing
week because we didn't even have kernel parity.

> We pushed 6.1 out, and migrated, on generic only, to migrate lots of
> packages in proposed, specifically nvidia & everything entangled with
> it, and thus unblock autopkgtesting of all the userspace packages
> which were otherwise failing on v5.19. There is no intention to port
> all flavours to 6.1.

Again, this is one of the reasons we had do miss testing week among another
reason (two blockers this round). To not have kernel equality here could cause
false positives in kernel-level testing. JACK and the audio stack, in
particular, are directly affected by the kernel, and what might work in 6.1
might not work in 5.19 with various devices. This could cause false bug
reports and create a lot more problems for triage.

> in Lunar, no further 6.1 builds will be done for any kernel flavour
> for the time being. And v6.2 landing, across all flavours, is in
> progress.

Understandable. I'm just trying to prevent the problem at hand in the future,
hence requesting that the decision to split the lowlatency into a lesser flavor
be reverted and have it built and treated as if it were the generic kernel
since it is installed by default in an official flavor of Ubuntu on desktop
systems. It is just clear to me that it truly does not get equal treatment,
which confirms my fears, which is why I want the decision that was made
reverted so that proper testing can proceed as it was before this change.

--
Erich Eickmeyer
Project Leader - Ubuntu Studio
Technical Lead - Edubuntu Revival