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

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To: Thiago Jung Bauermann <thiago.bauermann@xxxxxxxxxx>
Subject: Re: [PATCH v9 35/39] kselftest/arm64: Add a GCS test program built with the system libc
From: Mark Brown <broonie@xxxxxxxxxx>
Date: Thu, 18 Jul 2024 17:16:39 +0100
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Jonathan Corbet <corbet@xxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Marc Zyngier <maz@xxxxxxxxxx>, Oliver Upton <oliver.upton@xxxxxxxxx>, James Morse <james.morse@xxxxxxx>, Suzuki K Poulose <suzuki.poulose@xxxxxxx>, Arnd Bergmann <arnd@xxxxxxxx>, Oleg Nesterov <oleg@xxxxxxxxxx>, Eric Biederman <ebiederm@xxxxxxxxxxxx>, Shuah Khan <shuah@xxxxxxxxxx>, "Rick P. Edgecombe" <rick.p.edgecombe@xxxxxxxxx>, Deepak Gupta <debug@xxxxxxxxxxxx>, Ard Biesheuvel <ardb@xxxxxxxxxx>, Szabolcs Nagy <Szabolcs.Nagy@xxxxxxx>, Kees Cook <kees@xxxxxxxxxx>, "H.J. Lu" <hjl.tools@xxxxxxxxx>, Paul Walmsley <paul.walmsley@xxxxxxxxxx>, Palmer Dabbelt <palmer@xxxxxxxxxxx>, Albert Ou <aou@xxxxxxxxxxxxxxxxx>, Florian Weimer <fweimer@xxxxxxxxxx>, Christian Brauner <brauner@xxxxxxxxxx>, Ross Burton <ross.burton@xxxxxxx>, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-doc@xxxxxxxxxxxxxxx, kvmarm@xxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-kselftest@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-riscv@xxxxxxxxxxxxxxxxxxx
In-reply-to: <87plray8we.fsf@linaro.org>

On Thu, Jul 18, 2024 at 01:14:41PM -0300, Thiago Jung Bauermann wrote:

> In my FVP VM, this test gets a GCS SIGSEGV before running the first test:

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

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Follow-Ups:
- Re: [PATCH v9 35/39] kselftest/arm64: Add a GCS test program built with the system libc
  - From: Thiago Jung Bauermann

References:
- [PATCH v9 00/39] arm64/gcs: Provide support for GCS in userspace
  - From: Mark Brown
- [PATCH v9 35/39] kselftest/arm64: Add a GCS test program built with the system libc
  - From: Mark Brown
- Re: [PATCH v9 35/39] kselftest/arm64: Add a GCS test program built with the system libc
  - From: Thiago Jung Bauermann

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