Re: [PATCH 14/24] tests: move mips to debian-legacy-test-cross

["Daniel P. Berrangé" <berrange@redhat.com>]

On Mon, Sep 22, 2025 at 12:38:09PM +0400, Marc-André Lureau wrote:
> Hi
> 
> On Fri, Sep 19, 2025 at 6:21 PM Daniel P. Berrangé <berrange@redhat.com>
> wrote:
> 
> > On Fri, Sep 19, 2025 at 05:33:08PM +0400, marcandre.lureau@redhat.com
> > wrote:
> > > From: Marc-André Lureau <marcandre.lureau@redhat.com>
> > >
> > > We are updating debian which dropped support for it:
> > >
> > https://www.debian.org/releases/trixie/release-notes/issues.html#mips-architectures-removed
> >
> > If Debian 13 has dropped it, why aren't we just keeping the mips
> > dockerfiles on 12 ?
> >
> > The debian-legacy-test-cross a manually written dockerfile that
> > has almost none of our deps installed, and is still on 11 which
> > is outside our support matrix now. So I don't think we should
> > be expanding use of debian-legacy-test-cross, ideally it would
> > be removed entirely.
> >
> >
> debian-legacy-test-cross is for tests/tcg. Debian 11 supports more
> architecture than 12 or 13..

If there are architectures in 11 that can't be tested in 12,
then from QEMU's POV that is now an untestable feature, since
11 is outside our support target and we don't want to be
holding back our support platforms for this.

> > > diff --git a/tests/lcitool/refresh b/tests/lcitool/refresh
> > > index 6f98a91277..917ff4abfb 100755
> > > --- a/tests/lcitool/refresh
> > > +++ b/tests/lcitool/refresh
> > > @@ -215,16 +215,6 @@ try:
> > >                                              "x86_64-linux-user,"
> > >
> > "i386-softmmu,i386-linux-user"))
> > >
> > > -    generate_dockerfile("debian-mips64el-cross", "debian-12",
> > > -                        cross="mips64el",
> > > -                        trailer=cross_build("mips64el-linux-gnuabi64-",
> > > -
> > "mips64el-softmmu,mips64el-linux-user"))
> > > -
> > > -    generate_dockerfile("debian-mipsel-cross", "debian-12",
> > > -                        cross="mipsel",
> > > -                        trailer=cross_build("mipsel-linux-gnu-",
> > > -
> > "mipsel-softmmu,mipsel-linux-user"))
> > > -
> >
> > I'm not seeing the need to remove these, when they could just
> > stay on -12, when the next commit updates the other arches
> > to -13.
> >
> 
> Indeed.. it depends how much we want to keep covering. We already don't
> cover all qemu cross compilations. The question is do we want to keep
> cross-compiling for soon unsupported arches?
> 
> @Bennée, Alex <alex.bennee@linaro.org> might know, thanks

A feature remains fully supported for production use the while time it
is marked as deprecated. Provided one of our current supported platforms
has the ability to test it, there should be no change to our testing
status of deprecated features. Given that -12 is still a supported
platform we should continue to use that, and certainly not replace it
with -11 which is an unsupported platform.

With regards,
Daniel
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