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Date:      Wed, 8 Nov 2023 15:14:34 +0100
From:      Marek Zarychta <zarychtam@plan-b.pwste.edu.pl>
To:        freebsd-current@freebsd.org
Subject:   Re: revision not displayed in a2440348eed7
Message-ID:  <14057457-119e-6bb1-ff00-a59cc9ad9680@plan-b.pwste.edu.pl>
In-Reply-To: <1e2eb5a6-d728-efed-2b5d-b4a67ba9c861@plan-b.pwste.edu.pl>
References:  <202309260107.38Q17Vp0047265@kx.truefc.org> <bcb843e0-a2ca-18d9-70cd-cb702467c72a@aetern.org> <202309260629.38Q6T018051416@kx.truefc.org> <20230926181845.539e5816fbef80efda6162ec@dec.sakura.ne.jp> <202309261130.38QBUsLF053699@kx.truefc.org> <4c348f85-d99c-c7c3-5e1a-a435983b720b@plan-b.pwste.edu.pl> <20230926231431.20f42fec1075c3980446c50a@dec.sakura.ne.jp> <20230926221946.4F2C1623@slippy.cwsent.com> <20230927080723.f5157f938803c47a4185d431@dec.sakura.ne.jp> <1e2eb5a6-d728-efed-2b5d-b4a67ba9c861@plan-b.pwste.edu.pl>

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W dniu 8.11.2023 o 14:10, Marek Zarychta pisze:
>
> W dniu 27.09.2023 o 01:07, Tomoaki AOKI pisze:
>> On Tue, 26 Sep 2023 15:19:46 -0700
>> Cy Schubert <Cy.Schubert@cschubert.com> wrote:
>>
>>> In message <20230926231431.20f42fec1075c3980446c50a@dec.sakura.ne.jp>,
>>> Tomoaki
>>> AOKI writes:
>>>> On Tue, 26 Sep 2023 15:48:50 +0200
>>>> Marek Zarychta <zarychtam@plan-b.pwste.edu.pl> wrote:
>>>>
>>>>> W dniu 26.09.2023 o 13:30, KIRIYAMA Kazuhiko pisze:
>>>>>> At least up to 15.0-CURRENT, nothing has happend by
>>>>>> WITHOUT_REPRODUCIBLE_BUILD=yes. Something has changed in
>>>>>> 15.0-CURRENT at some time. I've rebuilded with 3fb80f1476c7,
>>>>>> but revision not showed by `uname -a' ;-(
>>>>>>
>>>>>> What changed ????
>>>>> Nothing changed. Perhaps your build system can't check git hash ? If
>>>>> your sources are from git repository, you need at least git-lite
>>>>> installed and full git repository available on build machine. If you
>>>>> checked out the repository with gitup and have gitup installed, it
>>>>> should also work. It won't work if your build machine has access  to
>>>>> only a part of the repository like worktree.
>>>>>
>>>>> Cheers
>>>>>
>>>>> -- 
>>>>> Marek Zarychta
>>>> Just a possibility, but copying src tree to directory other than the
>>>> directory where checked out from git repo and building there could
>>>> lose track with git hash.
>>>>
>>>> Another possibility is that if you build src with any user other than
>>>> the one owning local (pulled) git repo could also lose track with git
>>>> hash. For example, if I `git log HEAD` with regular user and the local
>>>> repo is pulled by root, it fails. No special configuration is done.
>>>>
>>>> % git log HEAD
>>>> fatal: detected dubious ownership in repository at '/usr/src'
>>>> To add an exception for this directory, call:
>>>>
>>>>          git config --global --add safe.directory /usr/src
>>>>
>>>>
>>> This could be due to e6dc6a27230, which was committed this morning. 
>>> There
>>> is discussion on the src commits ML (dev-commits-src-all,
>>> dev-commits-src-main) about reverting the change.
>>>
>>>
>>> -- 
>>> Cheers,
>>> Cy Schubert <Cy.Schubert@cschubert.com>
>>> FreeBSD UNIX:  <cy@FreeBSD.org>   Web: https://FreeBSD.org
>>> NTP:           <cy@nwtime.org>    Web: https://nwtime.org
>>>
>>>             e^(i*pi)+1=0
>> Would be unrelated here, unfortunately.
>> As the subject says, the commit the original reporter is bitten at (not
>> bi-sected) is at a2440348eed7, which is before e6dc6a27230.
>
> Let's refresh this thread. It looks like (at least for stable/14) 
> build system doesn't hardcode revision into the kernel anymore. Last 
> time it worked to me was just after branching stable/14. Today I tried 
> to build kernel from sources mounted over NFS and I ened with:
>
> # strings /usr/obj/usr/src/amd64.amd64/sys/BSDONDELL/kernel | grep 
> 14.0-STABLE
> @(#)FreeBSD 14.0-STABLE #6 -dirty: Tue Nov  7 14:04:35 CET 2023
> FreeBSD 14.0-STABLE #6 -dirty: Tue Nov  7 14:04:35 CET 2023
> 14.0-STABLE
>
> the source repository is updated, consisted, but mounted read-only 
> over NFS
>
> /usr/src# git status
> On branch stable/14
> Your branch is up to date with 'origin/stable/14'.
>
> Untracked files:
>   (use "git add <file>..." to include in what will be committed)
>         sys/amd64/conf/BSDONDELL
>
> It took 2.53 seconds to enumerate untracked files.
> See 'git help status' for information on how to improve this.
>
> nothing added to commit but untracked files present (use "git add" to 
> track)
>
>
> Any clues what could be wrong ? Does /usr/src/  require write 
> permissions now ?


I am sorry for the false alarm. It looks like using META MODE prevented 
updating this info. After cleaning obj dir and rebuilding revision is 
visible:
# strings /usr/obj/usr/src/amd64.amd64/sys/BSDONDELL/kernel | grep 
14.0-STABLE
@(#)FreeBSD 14.0-STABLE #0 stable/14-n265707-d2c65a1c9486: Wed Nov  8 
14:16:31 CET 2023
FreeBSD 14.0-STABLE #0 stable/14-n265707-d2c65a1c9486: Wed Nov  8 
14:16:31 CET 2023

-- 
Marek Zarychta




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