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Date:      Tue, 22 Jun 2021 12:49:02 +0100
From:      Jessica Clarke <jrtc27@freebsd.org>
To:        Dmitry Chagin <dchagin@freebsd.org>
Cc:        "src-committers@freebsd.org" <src-committers@freebsd.org>, "dev-commits-src-all@freebsd.org" <dev-commits-src-all@freebsd.org>, "dev-commits-src-main@freebsd.org" <dev-commits-src-main@freebsd.org>
Subject:   Re: git: e013e36939ac - main - linux(4): Get rid of Linuxulator kernel build options.
Message-ID:  <3B06AC5C-4569-4DCB-AA75-42005E781EFB@freebsd.org>
In-Reply-To: <YNHNbpSuf%2Bf1IcUa@heemeyer.club>
References:  <202106211656.15LGuXQU059224@gitrepo.freebsd.org> <C06B43AE-D887-410F-A212-5A16BC28DDB7@freebsd.org> <YNHC7bIN%2BtpRUm0C@heemeyer.club> <4C0E8010-EFBF-42A5-90EF-A502E7BBD3D7@freebsd.org> <YNHNbpSuf%2Bf1IcUa@heemeyer.club>

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On 22 Jun 2021, at 12:45, Dmitry Chagin <dchagin@freebsd.org> wrote:
> On Tue, Jun 22, 2021 at 12:36:26PM +0100, Jessica Clarke wrote:
>> On 22 Jun 2021, at 12:01, Dmitry Chagin <dchagin@freebsd.org> wrote:
>>> On Mon, Jun 21, 2021 at 10:56:38PM +0100, Jessica Clarke wrote:
>>>> On 21 Jun 2021, at 17:56, Dmitry Chagin <dchagin@FreeBSD.org> wrote:
>>>>> 
>>>>> The branch main has been updated by dchagin:
>>>>> 
>>>>> URL: https://cgit.FreeBSD.org/src/commit/?id=e013e36939ac87b53195370fb5e29f29c1a4b5c6
>>>>> 
>>>>> commit e013e36939ac87b53195370fb5e29f29c1a4b5c6
>>>>> Author:     Dmitry Chagin <dchagin@FreeBSD.org>
>>>>> AuthorDate: 2021-06-22 05:32:39 +0000
>>>>> Commit:     Dmitry Chagin <dchagin@FreeBSD.org>
>>>>> CommitDate: 2021-06-22 05:32:39 +0000
>>>>> 
>>>>>  linux(4): Get rid of Linuxulator kernel build options.
>>>>> 
>>>>>  Stop confusing people, retire COMPAT_LINUX and COMPAT_LINUX32 kernel
>>>>>  build options. Since we have 32 and 64 bit Linux emulators, we can't build both
>>>>>  emulators together into the kernel. I don't think it matters, Linux emulation
>>>>>  depends on loadable modules (via rc).
>>>>> 
>>>>>  Cut LINPROCFS and LINSYSFS for consistency.
>>>> 
>>>> I don’t see why these two should be deleted? They currently build fine,
>>>> and GNU/kFreeBSD kernels enable them. They might work as modules, but I
>>>> would worry that too many parts of userland would try and read them
>>>> before /etc/init.d/kldutils (the init script that loads modules) loads
>>>> them, so then we’d have to mess around with GRUB configs to preload
>>>> them. If the options work, please leave them in.
>>>> 
>>> 
>>> both FS modules depend on linux.ko on i386 or linux_common.ko on amd64,
>>> so it doesn't make sense to have options for them
>> 
>> But that still worked, and was even in NOTES so being tested by LINT.
>> 
>>>> There’s a separate debate of whether this is the “right” fix for
>>>> COMPAT_LINUX*; arguably that *should* work and it’s a bug that they
>>>> don’t, not a feature, even if it’s not of much interest to support…
>>>> 
>>>> I’d like to see the second half reverted, please, and believe the first
>>>> should be too, but I feel less strongly about that.
>>>> 
>>> 
>>> I think that descendants should adapt to upstream, esp since there is no
>>> KBI or ABI breakage. btw, debian wiki says gnu/kFreeBSD unmaintained
>>> since 2014. That is the reason to worry about dead project?
>> 
>> As the current maintainer this is news to me. I see no such comment on
>> the port’s wiki page[1].
>> 
>> Jess
>> 
>> [1] https://wiki.debian.org/Debian_GNU/kFreeBSD
>> 
> I read: https://www.debian.org/ports/kfreebsd-gnu/index.en.html

That doesn’t say unmaintained, that says not officially supported. It’s
the equivalent of Tier 1 vs not Tier 1 in FreeBSD, and falls into the
same category as powerpc, ppc64 and riscv64, among other architectures.
It just means that there are no stable releases, only unstable
(-CURRENT equivalent).

Jess




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