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From: "Bird, Tim" <Tim.Bird@sony.com>
To: Cyril Hrubis <chrubis@suse.cz>, Petr Vorel <pvorel@suse.cz>
CC: Rob Landley <rob@landley.net>, Geert Uytterhoeven <geert@linux-m68k.org>,
        "ltp@lists.linux.it" <ltp@lists.linux.it>, Li Wang <liwang@redhat.com>,
        Andrea Cervesato <andrea.cervesato@suse.com>,
        Greg Ungerer
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        Randy Dunlap
	<rdunlap@infradead.org>,
        John Paul Adrian Glaubitz
	<glaubitz@physik.fu-berlin.de>,
        Christophe Lyon <christophe.lyon@linaro.org>,
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        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        Linux ARM
	<linux-arm-kernel@lists.infradead.org>,
        linux-riscv
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        Linux-sh list <linux-sh@vger.kernel.org>,
        "automated-testing@lists.yoctoproject.org"
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        Niklas Cassel <niklas.cassel@wdc.com>
Subject: RE: [Automated-testing] Call for nommu LTP maintainer [was: Re:
 [PATCH 00/36] Remove UCLINUX from LTP]
Thread-Topic: [Automated-testing] Call for nommu LTP maintainer [was: Re:
 [PATCH 00/36] Remove UCLINUX from LTP]
Thread-Index: AQHaP9i+nPde0Zv90kmfJ6SqZmE5/rDPo4mBgAARuoCAAl6a8A==
Date: Tue, 9 Jan 2024 22:37:37 +0000
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> -----Original Message-----
> From: automated-testing@lists.yoctoproject.org <automated-testing@lists.y=
octoproject.org> On Behalf Of Cyril Hrubis
> Hi!
> > But as I said, if anybody from nommu decides to maintain it in LTP, I'l=
l try to
> > support him in my free time (review patches, give advices). And if nobo=
dy
> > stands, this patchset which removes the support in the old API will be =
merged
> > after next LTP release (in the end of January).
>=20
> Let me highlight this part, we are eager to help anybody who is willing
> to pick the nommu work, but we do not have resources to drive it.

I have a couple of comments here.

I think it would be good to give a little bit more time to try to find a he=
lper/maintainer
for this.  As Rob pointed out, a lot of embedded Linux developers are using=
 very old
kernels (and, if they are using LTP, likely very old versions of LTP).  The=
y are also
notorious for not being active on the mailing lists.  So this might take so=
me active
outreach to find helpers.  (I realize that this thread is part of this
outreach effort).  For this reason, I'd like a few more weeks to try to adv=
ertise this
need within the embedded Linux community.

I am not using nommu systems myself, so I'm in a similar position as Petr i=
n terms
of it not making much sense for me to be the maintainer.  However, having s=
aid that,
I have had for a few years now an idea for a background project related to =
LTP
that might make this a more interesting fit for me.  Sony uses NuttX, and i=
s considering
using Zephyr in some of our low-end processor systems.  This includes some =
nommu
systems.  For some time now, I have wanted to experiment with using LTP to =
test
the compatibility of those systems with the Linux system APIs.  In full dis=
closure,
I have no idea if this is a feasible or useful idea or not.  But it's somet=
hing I'd like
to investigate.

I realize that testing non-Linux RTOSes is out-of-scope for LTP.  But given=
 that that is
something I would like to do, and that it might be relevant to the Linux no=
mmu tests,
I would humbly request a few weeks to investigate this before the nommu cod=
e is removed.
This delay would be to see if it would make sense for me to volunteer to he=
lp out with
maintaining this otherwise abandoned code.

I can't promise anything, but I'd like to find out more about:
1) what parts of the current LTP are not supporting nommu (what's currently=
 broken),
2) how much code we're talking about, and
3) what the desired roadmap going forward would be, to continue to support =
this code.

Thanks,
 -- Tim