Re: [PATCH] Remove Ubuntu 18.04 support from the repository

[Philippe Mathieu-Daudé]

On Wed, May 11, 2022 at 1:15 PM Thomas Huth <thuth@redhat.com> wrote:
> On 11/05/2022 13.13, Philippe Mathieu-Daudé wrote:
> > On Wed, May 11, 2022 at 1:03 PM Thomas Huth <thuth@redhat.com> wrote:
> >> On 11/05/2022 12.46, Philippe Mathieu-Daudé wrote:
> >>>    On Wed, May 11, 2022 at 11:30 AM Daniel P. Berrangé
> >>> <berrange@redhat.com> wrote:
> >>>> On Tue, May 10, 2022 at 09:56:12PM +0200, Thomas Huth wrote:
> >>>>> According to our "Supported build platforms" policy, we now do not 
> >>>>> support
> >>>>> Ubuntu 18.04 anymore. Remove the related files and entries from our CI.
> >>>>>
> >>>>> Signed-off-by: Thomas Huth <thuth@redhat.com>
> >>>>> ---
> >>>>>    Seems like nobody touched the 18.04-based tests/vm/ubuntu* files in a
> >>>>>    very long time, so I assume these are not used anymore and can 
> >>>>> completely
> >>>>>    be removed now.
> >>>>
> >>>> Or it could mean that they are working fine and so haven't needed
> >>>> changes...
> >>>
> >>> Yes :)
> >>
> >> At least for me "make vm-build-ubuntu.aarch64" is only failing with ssh
> >> timeouts (on my x86 laptop) ... is this really supposed to work with TCG, 
> >> or
> >> is this KVM (on arm hosts) only?
> >
> > Yes this timeout code is not working. I suppose it is tied to the TCG host 
> > perf.
> > I suggested a pair of patches to increase it but back then Fam didn't 
> > accepted
> > them because IIRC these VMs were used by patchew (previous to Gitlab).
> > Today we have better framework for testing, so I wouldn't use this script on
> > CI, but it is still valuable for manual testing.
> >
> > Robert's email doesn't work anymore. Since I don't have x86 workstation
> > anymore, I'll probably use these tests/vm for testing. So let me add a
> > "upgrade tests/vm/ubuntu to 22.04" to my TODO list. If I fail and nobody
> > miss them, then I won't object to remove them.

So, 18.04 is the latest LTS release for 32-bit x86 (i386).

IIRC we used this 32-bit VM to reproduce bugs only triggered on 32-bit hosts
(while it seems obvious, what is not obvious is that very few developers run
on 32-bit hosts, so I'm not sure how long we are interested in avoiding bugs
there). See i.e.:
https://lore.kernel.org/qemu-devel/07a865e0-d535-9a19-cf29-f90984bcd510@amsat.org/

> All right, I'll respin my patch with the VMs excluded (and containers moved
> to a separate patch).
>
>   Thomas
>
>