linux-kernel - Re: [PATCH v4 23/35] vdso/datastore: Map pages through struct page

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Message-ID: <aQogAfbrP9rTPLvI@finisterre.sirena.org.uk>
Date: Tue, 4 Nov 2025 15:47:13 +0000
From: Mark Brown <broonie@...nel.org>
To: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Cc: Marek Szyprowski <m.szyprowski@...sung.com>,
	Andy Lutomirski <luto@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Vincenzo Frascino <vincenzo.frascino@....com>,
	Arnd Bergmann <arnd@...db.de>,
	"David S. Miller" <davem@...emloft.net>,
	Andreas Larsson <andreas@...sler.com>,
	Nick Alcock <nick.alcock@...cle.com>,
	John Stultz <jstultz@...gle.com>, Stephen Boyd <sboyd@...nel.org>,
	John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>,
	Shuah Khan <shuah@...nel.org>,
	Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>, Theodore Ts'o <tytso@....edu>,
	"Jason A. Donenfeld" <Jason@...c4.com>,
	Russell King <linux@...linux.org.uk>,
	Madhavan Srinivasan <maddy@...ux.ibm.com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Nicholas Piggin <npiggin@...il.com>,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	Huacai Chen <chenhuacai@...nel.org>,
	WANG Xuerui <kernel@...0n.name>,
	Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
	Heiko Carstens <hca@...ux.ibm.com>,
	Vasily Gorbik <gor@...ux.ibm.com>,
	Alexander Gordeev <agordeev@...ux.ibm.com>,
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	Nagarathnam Muthusamy <nagarathnam.muthusamy@...cle.com>,
	Shannon Nelson <sln@...main.com>, linux-kernel@...r.kernel.org,
	sparclinux@...r.kernel.org, linux-kselftest@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linuxppc-dev@...ts.ozlabs.org,
	loongarch@...ts.linux.dev, linux-mips@...r.kernel.org,
	linux-s390@...r.kernel.org, Aishwarya.TCV@....com
Subject: Re: [PATCH v4 23/35] vdso/datastore: Map pages through struct page

On Tue, Nov 04, 2025 at 04:43:34PM +0100, Thomas Weißschuh wrote:
> On Tue, Nov 04, 2025 at 01:14:03PM +0000, Mark Brown wrote:

> > I've now got the results for this specific commit, it looks like every
> > single arm64 system is failing.  I didn't test any other architectures.

> Which one do you mean exactly with "this specific commit"?

> 6a011a228293 ("vdso/datastore: Map pages through struct page")
> 10d91dac2ea5 ("vdso/datastore: Allocate data pages dynamically")

The one in the thread being replied to here, the first.

> Any chance I could get remote access to one of your test machines?
> I don't have access to the exact machines and that should reduce the chance
> of chasing down dead ends.

I can let you submit LAVA jobs to my lab (there's an API, a web
interface for (re)submitting jobs and a CLI tool for shoving jobs in) if
that works?  That's how my own access to it works unless I go pull
boards out.  You should be able to resubmit existing jobs, it downloads
test binaries over HTTP.

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