linux-kernel - Re: [PATCH v9 35/39] kselftest/arm64: Add a GCS test program built with the system libc

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Message-ID: <875ccce5-69ab-4a43-b49c-977036df4173@sirena.org.uk>
Date: Mon, 22 Jul 2024 09:57:30 +0100
From: Mark Brown <broonie@...nel.org>
To: Thiago Jung Bauermann <thiago.bauermann@...aro.org>
Cc: Catalin Marinas <catalin.marinas@....com>,
	Will Deacon <will@...nel.org>, Jonathan Corbet <corbet@....net>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Marc Zyngier <maz@...nel.org>,
	Oliver Upton <oliver.upton@...ux.dev>,
	James Morse <james.morse@....com>,
	Suzuki K Poulose <suzuki.poulose@....com>,
	Arnd Bergmann <arnd@...db.de>, Oleg Nesterov <oleg@...hat.com>,
	Eric Biederman <ebiederm@...ssion.com>,
	Shuah Khan <shuah@...nel.org>,
	"Rick P. Edgecombe" <rick.p.edgecombe@...el.com>,
	Deepak Gupta <debug@...osinc.com>, Ard Biesheuvel <ardb@...nel.org>,
	Szabolcs Nagy <Szabolcs.Nagy@....com>, Kees Cook <kees@...nel.org>,
	"H.J. Lu" <hjl.tools@...il.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Florian Weimer <fweimer@...hat.com>,
	Christian Brauner <brauner@...nel.org>,
	Ross Burton <ross.burton@....com>,
	linux-arm-kernel@...ts.infradead.org, linux-doc@...r.kernel.org,
	kvmarm@...ts.linux.dev, linux-fsdevel@...r.kernel.org,
	linux-arch@...r.kernel.org, linux-mm@...ck.org,
	linux-kselftest@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org
Subject: Re: [PATCH v9 35/39] kselftest/arm64: Add a GCS test program built
 with the system libc

On Thu, Jul 18, 2024 at 07:28:32PM -0300, Thiago Jung Bauermann wrote:
> Mark Brown <broonie@...nel.org> writes:

> > Do you have THP enabled?  That still doesn't work (I'm expecting it to
> > be fixed with -rc1).

> I did have it enabled. After turning it off in the kernel config, the
> test does pass. But I see 30 lines of "INVALID GCS" in dmesg while
> running it. Is it expected?

Oops, that's a debug print left in by mistake but does indicate
everything's running well.

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