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Message-ID: <CAJuCfpEcbcO0d5WPDHMqiEJws9k_5c30pE-J+E_VxO_fpTf_mw@mail.gmail.com>
Date:   Mon, 11 Dec 2023 08:15:11 -0800
From:   Suren Baghdasaryan <surenb@...gle.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     David Hildenbrand <david@...hat.com>, akpm@...ux-foundation.org,
        viro@...iv.linux.org.uk, brauner@...nel.org, shuah@...nel.org,
        aarcange@...hat.com, lokeshgidra@...gle.com, peterx@...hat.com,
        ryan.roberts@....com, hughd@...gle.com, mhocko@...e.com,
        axelrasmussen@...gle.com, rppt@...nel.org, willy@...radead.org,
        Liam.Howlett@...cle.com, jannh@...gle.com, zhangpeng362@...wei.com,
        bgeffon@...gle.com, kaleshsingh@...gle.com, ngeoffray@...gle.com,
        jdduke@...gle.com, linux-mm@...ck.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-kselftest@...r.kernel.org, kernel-team@...roid.com
Subject: Re: [PATCH v6 5/5] selftests/mm: add UFFDIO_MOVE ioctl test

On Mon, Dec 11, 2023 at 4:24 AM Mark Brown <broonie@...nel.org> wrote:
>
> On Mon, Dec 11, 2023 at 01:03:27PM +0100, David Hildenbrand wrote:
> > On 11.12.23 12:15, Mark Brown wrote:
>
> > > This is linux-next.  I pasted the commands used to build and sent links
> > > to a full build log in the original report.
>
> > Probably also related to "make headers-install":
>
> > https://lkml.kernel.org/r/20231209020144.244759-1-jhubbard@nvidia.com
>
> > The general problem is that some mm selftests are currently not written in
> > way that allows them to compile with old linux headers. That's why the build
> > fails if "make headers-install" was not executed, but it does not fail if
> > "make headers-install" was once upon a time executed, but the headers are
> > outdated.
>
> Oh, it's obviously the new headers not being installed.  The builds
> where I'm seeing the problem (my own and KernelCI's) are all fresh
> containers so there shouldn't be any stale headers lying around.

Ok, I was updating my headers and that's why I could not reproduce it.
David, should the test be modified to handle old linux headers
(disable the new tests #ifndef _UFFDIO_MOVE or some other way)?

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