Comment 7 for bug 1976146

Dear Steve
Thx for your effort tracking this issue to its roots!

Kind regards
Otto

On Sun, 29 May 2022, 20:55 Steve Langasek, <email address hidden>
wrote:

> Right.
>
> def build_image_set(config, options):
> """Master entry point for building images."""
> with handle_signals():
> multipidfile = MultiPIDFile(
> os.path.join(config.root, "etc", ".build-image-set-pids"))
> with lock_build_image_set(config):
> with multipidfile.held(os.getpid()) as multipidfile_state:
> return build_image_set_locked(
> config, options, multipidfile_state)
>
> So, .build-image-set-pids is not empty, and presumably has not been for
> some time (and which I would've recognized immediately from the last bug
> report if I had read the code right). Which means this actually is the
> same problem we've had before, where the server has gotten so busy with
> daily builds that it never quiesces and therefore never has a chance to
> sync the mirrors.
>
> This problem is exacerbated by the fact that we now have riscv64 daily
> builds on multiple series, each of which takes many hours to complete
> and therefore holds the lock.
>
> I would really like us to refactor our mirroring to be able to use by-
> hash indices for image builds and avoid the need for locking around the
> rsync, but that is a much bigger project. In the meantime we need to
> look instead for ways to reduce the contention. One option is to align
> the schedule for all the riscv64 builds to start at roughly the same
> time, so that the impact of these builds running for a long time is
> minimized.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1976146
>
> Title:
> bcmwl-kernel-source fails to build on daily isos 20.04 & 22.04
>
> Status in Ubuntu CD Images:
> New
>
> Bug description:
> hi :-)
>
> the bcwml-kernel-source fails to build on the latest focal & jammy
> daily iso image
>
> it seems that the apt repository on the daily images is being stale
> with respect to the livefs.
>
> issue seems to be with:
> dpkg-dev_1.21.1ubuntu2_all.deb
>
> kind regards
> Otto
>
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>
>