[LTP] [PATCH 0/2] Remove CentOS 7 support

[Jan Stancek]

On Wed, Oct 25, 2023 at 4:01 PM Petr Vorel <pvorel@suse.cz> wrote:
>
> Hi all,
>
> we recently had yet another regression on old CentOS 7 (kernel 3.10,
> glibc 2.17, gcc 4.8.5 [1]. That brought me to the question if we still
> want to support it.
>
> Although we test in SUSE also very old SLES releases, these are tested
> with older LTP releases. I suppose Red Hat does the same with RHEL
> (Li, Jan, please correct me if not, or feel free to introduce another
> CentOS version, as there will none with this patchset), thus why
> pretend current LTP is useful on these old releases.

Looking at internal LTP test wrapper, it's using older LTP release for RHEL7,
so your assumption appears to be correct.

>
> I wonder who is actually interested in keeping LTP compilable for CentOS 7.
> According to distrowatch it EOL in 2024-06 [2], but does anybody even run new
> LTP on it. If yes, please speak up, but I'd expect that person to
> actually maintain CI failures.

There's planned ELS until 2026, but I'd expect that continues using
older LTP for tests.

>
> The oldest SLES release SUSE actually tests with the latest LTP release is
> SLE12-SP2 (kernel 4.4, glibc 2.22 and gcc 4.8.5). The latest kernel LTSS is
> 4.14. Thus removing CentOS 7 from the CI and re-adding Ubuntu 16.04 LTS
> xenial (kernel 4.4, glibc 2.23, gcc 5.3.1) would more or less fit SUSE
> needs. It actually EOL, but docker is still supported [3].
>
> The benefit would be to have 3 years younger base kernel and glibc (thus
> less lapi fallbacks needed). If this is accepted, I'll have look on
> older code and send following patches which removes it.
>
> We currently use -std=gnu99 since dc7be30e2 ("config: Explicitly set gnu99"),
> which documents that can't use C99 because LTP is far from compliant.
> Therefore I'd keep it the same until we rewrite (or delete) the old code.
> (xenial gcc 5.3.1 has the default dialect -std=gnu11 [4], SLE12-SP2 gcc 4.8.5 is
> -std=gnu90 [5], C99 is already supported in gcc 4.5, with -fextended-identifiers
> [6]).
>
> Kind regards,
> Petr
>
> Petr Vorel (2):
>   CI: ReAplace CentOS 7 with openSUSE Leap 42.2, Ubuntu xenial
>   doc/support: Update the latest tested distros
>
>  .github/workflows/ci.yml                        | 17 +++++++++++------
>  ...ed-kernel,-libc,-toolchain-versions.asciidoc |  2 +-
>  2 files changed, 12 insertions(+), 7 deletions(-)
>
> --
> 2.42.0
>