Re: Reminder: hotfix fast path needed

[Baurzhan Ismagulov <ibr@radix50.net>]

Hello Jan,

On 2025-10-23 07:52, Jan Kiszka wrote:
> Patches that carry "Fixes:" tag and address build breakages should be on
> a fast path for QA and merge. I'm pointing colleagues to [1] and [2]
> almost on a daily basis, but those are just two recent examples.
> 
> [1] https://patchwork.isar-build.org/project/isar/patch/20251017085344.2647058-1-felix.moessbauer@siemens.com/
> [2] https://patchwork.isar-build.org/project/isar/patch/0f16240d-aca7-4f03-b0f7-1567c5b4c26f@siemens.com/

I acknowledge the desire to have fast path for "Fixes:" and build breakages.
We've merged #2. The full results for #1 will be available tomorrow. There is a
number of failures due to e.g. external networking issues; we'll be sharing
patches for those.

I think introducing fast path for certain changes is the easiest part of the
equation. In #2, you also express regret that there is no testcase for the
feature in question. In general, we should think about adding testcases on use
case introduction and bug fixes -- here I agree with Cedric. I think this has
larger contribution to the quality, benefits all downstreams and saves the
overall fixing effort, as every applied change could break the feature. Once a
fix goes in, a testcase never follows. Currently, we are developing testcases
for certain changes from the list; longer-term, this will not work.

The Linux "tested by many" model helps only to some extent. We also see e.g.
conflicting changes being applied back and forth, even in Linux. Having the use
case view backed by tests at the Isar level would avoid this.

To summarize, we'll evaluate this proposal and also invite for more
collaboration on testcases.

With kind regards,
Baurzhan

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